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Các bạn 2k5 chuẩn bị thi THPTQG 2023 hãy thử sức mình với những đề thi thử trên dgnl.olm.vn nhé.___Kỳ thi tốt nghiệp THPT có nội dung thi nằm trong chương trình giáo dục THPT hiện hành, chủ yếu là chương trình lớp 12; đề thi được xây dựng đáp ứng yêu cầu của Kỳ thi, bảo đảm độ phân hóa phù hợp và hạn chế học tủ, học lệch, khuyến khích sáng tạo của thí sinh.Các bài thi thử của OLM-ĐGNL cung cấp có cấu...
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Các bạn 2k5 chuẩn bị thi THPTQG 2023 hãy thử sức mình với những đề thi thử trên dgnl.olm.vn nhé.

___

Kỳ thi tốt nghiệp THPT có nội dung thi nằm trong chương trình giáo dục THPT hiện hành, chủ yếu là chương trình lớp 12; đề thi được xây dựng đáp ứng yêu cầu của Kỳ thi, bảo đảm độ phân hóa phù hợp và hạn chế học tủ, học lệch, khuyến khích sáng tạo của thí sinh.

Các bài thi thử của OLM-ĐGNL cung cấp có cấu trúc tương tự với các bài thi chính thức, giúp các sĩ tử có đánh giá chính xác nhất học lực hiện tại để có kế hoạch chuẩn bị và ôn tập phù hợp.

📝Đề minh họa Tốt nghiệp THPT năm 2023 của Bộ GD&ĐT (miễn phí):

https://dgnl.olm.vn/exam/de-tham-khao-tot-nghiep-thpt-nam-2023.2165294755

📝Tốt nghiệp THPT - Đề thi thử lần 1 (đề đã mở, miễn phí):

https://dgnl.olm.vn/exam/de-thi-thu-tot-nghiep-thpt-lan-1.2164114691

📝Tốt nghiệp THPT - Đề thi thử lần 2 (đề đã mở, giá 150,000đ):

https://dgnl.olm.vn/exam/tot-nghiep-thpt-de-thi-thu-lan-2.2174632638

📝Tốt nghiệp THPT - Đề thi thử lần 3 (đề đã mở, giá 150,000đ):

https://dgnl.olm.vn/exam/tot-nghiep-thpt-de-thi-thu-lan-3.2192364695

2
21 tháng 5 2023

4/7 : 2/5 = 10/7

Tổng số phần bằng nhau:

10 + 7 = 17 (phần)

Số sản phẩm cửa hàng thứ hai bán được:

1360 : 17 × 10 = 800 (sản phẩm)

Số sản phẩm cửa hàng thứ nhất bán được:

1360 : 17 × 7 = 560 (sản phẩm)

15 tháng 5 2023

Cậu đăng lên mục câu hỏi để mọi người có thể giúp cậu được nha!

Các bạn 2k5 chuẩn bị thi THPTQG 2023 hãy thử sức mình với những đề thi thử trên dgnl.olm.vn nhé!___Kỳ thi tốt nghiệp THPT có nội dung thi nằm trong chương trình giáo dục THPT hiện hành, chủ yếu là chương trình lớp 12; đề thi được xây dựng đáp ứng yêu cầu của Kỳ thi, bảo đảm độ phân hóa phù hợp và hạn chế học tủ, học lệch, khuyến khích sáng tạo của thí sinh.Các bài thi thử của OLM-ĐGNL cung cấp có cấu...
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Các bạn 2k5 chuẩn bị thi THPTQG 2023 hãy thử sức mình với những đề thi thử trên dgnl.olm.vn nhé!

___

Kỳ thi tốt nghiệp THPT có nội dung thi nằm trong chương trình giáo dục THPT hiện hành, chủ yếu là chương trình lớp 12; đề thi được xây dựng đáp ứng yêu cầu của Kỳ thi, bảo đảm độ phân hóa phù hợp và hạn chế học tủ, học lệch, khuyến khích sáng tạo của thí sinh.

Các bài thi thử của OLM-ĐGNL cung cấp có cấu trúc tương tự với các bài thi chính thức, giúp các sĩ tử có đánh giá chính xác nhất học lực hiện tại để có kế hoạch chuẩn bị và ôn tập phù hợp.

📝Đề minh họa Tốt nghiệp THPT năm 2023 của Bộ GD&ĐT (miễn phí):
https://dgnl.olm.vn/exam/de-tham-khao-tot-nghiep-thpt-nam-2023.2165294755

📝Tốt nghiệp THPT - Đề thi thử lần 1 (miễn phí):
https://dgnl.olm.vn/exam/de-thi-thu-tot-nghiep-thpt-lan-1.2164114691

📝Tốt nghiệp THPT - Đề thi thử lần 2 (đề mở ngày 31/3, đăng ký thi trước giờ mở đề giảm giá chỉ còn 100,000đ. Đăng ký thi sau giờ mở đề giá là 150,000đ):
https://dgnl.olm.vn/exam/tot-nghiep-thpt-de-thi-thu-lan-2.2174632638

21
CT
28 tháng 3 2023

Hướng dẫn thí sinh tham gia thi thử trên OLM-ĐGNL: https://dgnl.olm.vn/tin-tuc/huong-dan-hoc-sinh-tham-gia-thi-thu-tren-olm-dgnl-643823112

28 tháng 3 2023

2k9 làm thử được không cô nhỉ :)

Dạng bài tiếp theo xuất hiện trong đề thi tốt nghiệp THPT môn Tiếng Anh của các em đó chính là dạng tìm câu đồng nghĩa. Chúng ta cùng thử sức với 10 câu hỏi được lấy từ đề thi thử của các trường THPT Chuyên nhé! 1:  Only with careful environmental planning can we protect the world in which we live.A.  Careful environmental planning protects the world we live in.B.  Planning the environment carefully, we can protect the world in which we...
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Dạng bài tiếp theo xuất hiện trong đề thi tốt nghiệp THPT môn Tiếng Anh của các em đó chính là dạng tìm câu đồng nghĩa. Chúng ta cùng thử sức với 10 câu hỏi được lấy từ đề thi thử của các trường THPT Chuyên nhé!

 

1:  Only with careful environmental planning can we protect the world in which we live.

A.  Careful environmental planning protects the world we live in.

B.  Planning the environment carefully, we can protect the world in which we live.

C.  Protecting the world we live in, we plan the environment carefully.

D.  We can protect the world we live in only with careful environmental planning.

2:  You should take regular exercises instead of sitting in front of the television all day.

A.  Taking regular exercises is better than sitting in front of the television all day.

B.  Sitting in front of the television all day helps you take regular exercises.

C.  Sitting in front of the television all day and taking exercises are advisable.

D.  Don’t take regular exercises, just sit in front of the television all day.

3:  It was not until after I got home that I realized I had not set the burglar alarm in the office.

A.  On the way home, I suddenly realized that I had forgotten to turn on the burglar alarm in the office.

B.  Fortunately, I realized that I hadn't set the burglar alarm just before I left for home; otherwise, I would have had to travel all the way back to the office.

C.  I didn’t turn the burglar alarm on before I left the office, but I only became aware of this after I'd arrived home.

D. I wish I had realized before I arrived home that I hadn't turned on the burglar alarm in the office, then it would have been easier to go and set it.

4:  He did not remember the meeting. He went out for a coffee with his friends then.

A.  Not remember the meeting, he went out for a coffee with his friends.

B.  Not to remember the meeting, he went out for a coffee with his friends.

C.  Not remembered the meeting, he went out for a coffee with his friends.

D.  Not remembering the meeting, he went out for a coffee with his friends.

5:  They left their home early. They didn’t want to miss the first train.

A.  They left their home early so as to not miss the first train.

B.  They left their home early for fear that they wouldn’t miss the first train.

C.  They left their home early so as not to miss the first train.

D.  They left their home early in order that not to miss the first train.

6:  I’m sure Luisa was very disappointed when she failed the exam

A.  Luisa must be very disappointed when she failed the exam.

B.  Luisa must have been very disappointed when she failed the exam.

C. Luisa may be very disappointed when she failed the exam.

D. Luisa could have been very disappointed when she failed the exam.

7.  “You had better see a doctor if the sore throat does not clear up.” she said to me.

A.  She reminded me of seeing a doctor if the sore throat did not clear up.

B.  She ordered me to see a doctor if the sore throat did not clear up.

C.  She insisted that I see a doctor unless the sore throat did not clear up.

D.  She suggested that I see a doctor if the sore throat did not clear up.

8:  Without her teacher’s advice, she would never have written such a good essay

A.  Her teacher advised him and she didn't write a good essay.

B.  Her teacher didn't advise her and she didn't write a good essay.

C.  She wrote a good essay as her teacher gave her some advice.

D.  If her teacher didn't advise her, she wouldn't write such a good essay.

9.  She tried very hard to pass the driving test. She could hardly pass it.

A.  Although she didn't try hard to pass the driving test, she could pass it.

B.  Despite being able to pass the driving test, she didn't pass it.

C.  No matter how hard she tried, she could hardly pass the driving test.

D.  She tried very hard, so she passed the driving test satisfactorily.

10. Mary loved her stuffed animal when she was young. She couldn’t sleep without it.

A. When Mary was young, she loved her stuffed animal so much that she couldn't sleep without it.

B. When Mary was young, she loved her stuffed animal so as not to sleep without it.

C. When Mary was young, she loved her stuffed animal though she couldn't sleep without it.

D. As Mary couldn't sleep without her stuffed animal when Mary was young, she loved it.

9
15 tháng 4 2021

1:  Only with careful environmental planning can we protect the world in which we live.

D.  We can protect the world we live in only with careful environmental planning.

2:  You should take regular exercises instead of sitting in front of the television all day.

A.  Taking regular exercises is better than sitting in front of the television all day.

3:  It was not until after I got home that I realized I had not set the burglar alarm in the office.

C.  I didn’t turn the burglar alarm on before I left the office, but I only became aware of this after I'd arrived home.

4:  He did not remember the meeting. He went out for a coffee with his friends then.

D.  Not remembering the meeting, he went out for a coffee with his friends.

5:  They left their home early. They didn’t want to miss the first train.

C.  They left their home early so as not to miss the first train.

6:  I’m sure Luisa was very disappointed when she failed the exam

B.  Luisa must have been very disappointed when she failed the exam.

7.  “You had better see a doctor if the sore throat does not clear up.” she said to me.

D.  She suggested that I see a doctor if the sore throat did not clear up.

8:  Without her teacher’s advice, she would never have written such a good essay

C.  She wrote a good essay as her teacher gave her some advice.

9.  She tried very hard to pass the driving test. She could hardly pass it.

C.  No matter how hard she tried, she could hardly pass the driving test.

10. Mary loved her stuffed animal when she was young. She couldn’t sleep without it.

A. When Mary was young, she loved her stuffed animal so much that she couldn't sleep without it.

15 tháng 4 2021

1:  Only with careful environmental planning can we protect the world in which we live.

A.  Careful environmental planning protects the world we live in.

B.  Planning the environment carefully, we can protect the world in which we live.

C.  Protecting the world we live in, we plan the environment carefully.

D.  We can protect the world we live in only with careful environmental planning.

2:  You should take regular exercises instead of sitting in front of the television all day.

A.  Taking regular exercises is better than sitting in front of the television all day.

B.  Sitting in front of the television all day helps you take regular exercises.

C.  Sitting in front of the television all day and taking exercises are advisable.

D.  Don’t take regular exercises, just sit in front of the television all day.

3:  It was not until after I got home that I realized I had not set the burglar alarm in the office.

A.  On the way home, I suddenly realized that I had forgotten to turn on the burglar alarm in the office.

B.  Fortunately, I realized that I hadn't set the burglar alarm just before I left for home; otherwise, I would have had to travel all the way back to the office.

C.  I didn’t turn the burglar alarm on before I left the office, but I only became aware of this after I'd arrived home.

D. I wish I had realized before I arrived home that I hadn't turned on the burglar alarm in the office, then it would have been easier to go and set it.

4:  He did not remember the meeting. He went out for a coffee with his friends then.

A.  Not remember the meeting, he went out for a coffee with his friends.

B.  Not to remember the meeting, he went out for a coffee with his friends.

C.  Not remembered the meeting, he went out for a coffee with his friends.

D.  Not remembering the meeting, he went out for a coffee with his friends.

5:  They left their home early. They didn’t want to miss the first train.

A.  They left their home early so as to not miss the first train.

B.  They left their home early for fear that they wouldn’t miss the first train.

C.  They left their home early so as not to miss the first train.

D.  They left their home early in order that not to miss the first train.

6:  I’m sure Luisa was very disappointed when she failed the exam

A.  Luisa must be very disappointed when she failed the exam.

B.  Luisa must have been very disappointed when she failed the exam.

C. Luisa may be very disappointed when she failed the exam.

D. Luisa could have been very disappointed when she failed the exam.

20 tháng 6 2023

Bạn trả lời có tâm nhưng tôi thấy bạn toàn copy câu trả lời của người khác, gợi ý cho bạn là: đừng copy latex nhé, copy các kí tự đặc biệt thì đừng hỏi tại sao lại có những ''ô hỏi chấm'' nhé!

21 tháng 6 2023

bn phải trl nhanh nhất, đúng nhất là một chuyện còn phải có tâm nữa 

13 tháng 12 2023

\(\int\limits^2_0\left[f\left(x\right)-2g\left(x\right)\right]dx=\int\limits^2_0f\left(x\right)dx-2\int\limits^2_0g\left(x\right)dx=3+2=5\)

Cảm ơn sự nhiệt tình của anh vì gần đến kì thi THPTQG đã đăng rất nhiều học liệu có ích về môn Văn. Thật ra mấy đề của các tỉnh hên xui sẽ có thể trúng vào bài thi THPTQG nên cứ xem qua các đề tỉnh một chút biết đâu bất ngờ. 

25 tháng 6 2023

XEM THÊM - [NHỮNG ĐIỀU CẦN BIẾT KHI HỌC VĂN TRONG GIAI ĐOẠN NƯỚC RÚT]:  https://hoc24.vn/cau-hoi/nhung-dieu-can-biet-khi-hoc-van-trong-giai-doan-nuoc-rutday-la-kinh-nghiem-ca-nhan-cua-anh-pop-trong-giai-doan-nuoc-rut-hoc-mon-ngu-van-on-thi-thptq.8086541123947

[CÙNG NHAU GIẢI CÁC ĐỀ THI THỬ THPTQG 2023 MÔN SINH HỌC - 03.04.23]Đây là một series POP cùng các bạn ôn thi THPTQG 2023 môn Sinh học nhá!Chủ yếu mình sẽ giải quyết những vấn đề phần bài tập thôi nè.---Câu hỏi: Ở một loài thú, tính trạng màu lông do một gen có 2 alen quy định, trong đó lông đỏ trội hoàn toàn  so với lông trắng. Khi cho một cá thể lông đỏ giao phối với một cá thể lông trắng, thu được F1 có...
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[CÙNG NHAU GIẢI CÁC ĐỀ THI THỬ THPTQG 2023 MÔN SINH HỌC - 03.04.23]

Đây là một series POP cùng các bạn ôn thi THPTQG 2023 môn Sinh học nhá!

Chủ yếu mình sẽ giải quyết những vấn đề phần bài tập thôi nè.

---

Câu hỏi: Ở một loài thú, tính trạng màu lông do một gen có 2 alen quy định, trong đó lông đỏ trội hoàn toàn  so với lông trắng. Khi cho một cá thể lông đỏ giao phối với một cá thể lông trắng, thu được F1 có tỉ lệ 1 cá thể lông đỏ: 1 cá thể lông trắng. Cho F1 giao phối tự do, thu được đời F2 có tỉ lệ 1 cá thể lông đỏ : 1 cá thể lông  trắng. Biết rằng, không có đột biến xảy ra và sự biểu hiện màu lông không phụ thuộc vào môi trường. Có bao  nhiêu phát biểu dưới đây đúng

I. Gen quy định tính trạng màu lông nằm trên NST thường. 

II. Gen quy định tính trạng màu lông có thể nằm trên vùng không tương đồng của NST X.

III. Gen quy định tính trạng màu lông có thể nằm trên vùng tương đồng của NST X và Y.

IV. Nếu F2 tiếp tục giao phối ngẫu nhiên thì đời F3 sẽ có tỉ lệ kiểu hình 7 lông đỏ : 9 lông trắng. 

A. 4. B. 1. C. 3. D. 2. 

Các bạn chọn đáp án đúng và nếu được ghi ra cách làm để POP xem nó đúng, nó nhanh hay chưa hấy ^^ Cảm ơn các bạn nhỏ của POP :3

11
3 tháng 4 2023

Các bạn lớp nhỏ hơn tham gia là cũng được hí, sẽ có sửa chi tiết nha!

Tiếp tục với các dạng bài xuất hiện trong đề thi tốt nghiệp THPT môn Tiếng Anh của các em sẽ là các bài viết lại câu. Hãy cùng thử sức với 20 câu kết hợp câu ở mức độ Thông Hiểu sau đây nhé! Good luck các em. Question 1. The young girl has great experience in nursing. She has worked as a hospital volunteer for years.A. Before she worked as a hospital volunteer for years, the young girl has great experience in nursing.B. Much as she has worked as...
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Tiếp tục với các dạng bài xuất hiện trong đề thi tốt nghiệp THPT môn Tiếng Anh của các em sẽ là các bài viết lại câu. Hãy cùng thử sức với 20 câu kết hợp câu ở mức độ Thông Hiểu sau đây nhé! Good luck các em.

 

Question 1. The young girl has great experience in nursing. She has worked as a hospital volunteer for years.

A. Before she worked as a hospital volunteer for years, the young girl has great experience in nursing.

B. Much as she has worked as a hospital volunteer for years, the young girl has great experience in nursing.

C. Having worked as a hospital volunteer for years, the young girl has great experience in nursing.

D. With great experience in nursing, the young girl has worked as a hospital volunteer for years.

Question 2. Peter told us about his leaving the school. He did it on his arrival at the meeting.

A. Only after his leaving the school did Peter inform us of his arrival at the meeting.

B. Not until Peter told us that he would leave the school did he arrive at the meeting.

C. Hardly had Peter informed us about his leaving the school when he arrived at the meeting.

D. No sooner had Peter arrived at the meeting than he told us about his leaving the school.

Question 3. He was successful because he was determined to pursue personal goals. He was not talented.

A. In addition to his determination, his talent ensured his success in pursuing his goals.

B. His determination to pursue personal goals made him successful and talented.

C. It was his determination to pursue personal goals, not talent, that contributed to his success.

D. His success lay in his natural ability, not in his determination to pursue personal goals.

Question 4. There was a serious flood. All local pupils couldn’t go to school on that day.

A. The serious flood prevented all local pupils not go to school on that day.

B. The serious flood hindered all local pupils from going to school on that day.

C. The serious flood made all pupils from not going to school on that day.

D. The serious flood caused all local pupils not go to school on that day.

Question 5. He did not remember the meeting. He went out for a coffee with his friends then.

A. Not remember the meeting, he went out for a coffee with his friends.

B. Not to remember the meeting, he went out for a coffee with his friends.

C. Not remembered the meeting, he went out for a coffee with his friends.

D. Not remembering the meeting, he went out for a coffee with his friends.

Question 6. They left their home early. They didn’t want to miss the first train.

A. They left their home early so as to not miss the first train.

B. They left their home early for fear that they wouldn’t miss the first train.

C. They left their home early so as not to miss the first train.

D. They left their home early in order that not to miss the first train.

Question 7. My sisters used to get on with each other. Now they hardly speak.

A. My sisters were once close, but they rarely speak to each other now.

B. My sisters do not speak to each other much, but they are good friends.

C. My sisters rarely speak because they have never liked each other.

D. Because they have never got on, my sisters do not speak to each other.

Question 8. The soccer team knew they lost the match. They soon started to blame each other.

A. Not only did the soccer team lose the match but they blamed each other as well.

B. No sooner had the soccer team started to blame each other than they knew they lost the match.

C. As soon as they blamed each other, the soccer team knew they lost the match.

D. Hardly had the soccer team known they lost the match when they started to blame each other.

Question 9. We have been friends for years. It is quite easy to share secrets between us.

A. Being friends for years, we find it quite easy to share secrets.

B. We find it quite easy to share secrets, being friends for years.

C. We have been friends so that it is quite easy to share secrets between us.

D. Having been friends for years, we find it quite easy to share secrets between us.

Question 10. I started training to be an accountant six months ago. I’ve got more months to go and then I have to take exams.

A. By the time I’ve taken my exam, I will have started training to be an accountant for a year.

B. By the time I take my exam, I will have been in training to be an accountant for a year.

C. By the time I took my exam, I would have trained to be an accountant for a year.

D. By the time I’ve taken my exam, I will be training for a year.

Question 11. The government knows the extent of the problem. The government needs to take action soon.

A. The government knows the extent of the problem whereas it needs to take action soon.

B. The government knows the extent of the problem so that it needs to take action soon.

C. Knowing the extent of the problem, the government needs to take action soon.

D. The government knows the extent of the problem, or else it needs to take action soon.

Question 12. The substance is very toxic. Protective clothing must be worn at all times.

A. Since the substance is very toxic, so protective clothing must be worn at all times.

B. So toxic is the substance that protective clothing must be worn at all times.

C. The substance is such toxic that protective clothing must be worn at all times.

D. The substance is too toxic to wear protective clothing at all times.

Question 13. I accepted the new job after all. It is making me feel exhausted.

A. Perhaps I shouldn’t have accepted this new job, as it’s making me feel exhausted.

B. Perhaps it would have been better if I hadn’t agreed to this new job since it is so boring.

C. It is of deep regret that I didn’t turn down the job offer due to its hardship and long hour work.

D. If it had not been for my acceptance the new job offer, I wouldn’t have felt exhausted.

Question 14. Since 1970, the United Nations has been celebrating April 22nd as Earth Day. It attracts millions of people worldwide to join in to promote public awareness of environmental protection.

A. Since 1970, the UNs has been celebrating April 22nd as Earth Day because it attracts millions of people worldwide to join in to promote public awareness of environmental protection.

B. The UNs has been celebrating April 22nd as Earth Day, which millions of people worldwide are attracted to join in it to promote public awareness of environmental protection.

C. Since 1970, the UNs has been celebrating April 22nd as Earth Day, which attracts millions of people worldwide to join in to promote public awareness of environmental protection.

D. Since 1970, the UNs has been celebrating April 22nd as Earth Day so that more people join in to promote public awareness of environmental protection.

Question 15. We found the bad weather very inconvenient. We chose to find a place for the night.

A. The bad weather prevented us from driving any further.

B. Bad weather was approaching, so we started to look for a place to stay.

C. Seeing that the bad weather had set in, we decided to find somewhere to spend the night.

D. Because the climate was so severe, we were worried about what we’d do at night.

Question 16. He held the rope with one hand. He stretched it out.

A. The rope is held with one hand then he stretched it out.

B. Stretching the rope out, he holds it with one hand.

C. Holding the rope with one hand, he stretched it out.

D. He stretched the rope with one hand and held it.

Question 17. The plan may be ingenious. It will never work in practice.

A. Ingenious as it may be, the plan will never work in practice.

B. Ingenious as may the plan, it will never work in practice.

C. The plan may be too ingenious to work in practice.

D. The plan is as impractical as it is ingenious.

Question 18. I never received the letter. It was sent to the wrong address.

A. Since it was sent to the wrong address, I have never received the letter.

B. I never received the letter because it was sent to the wrong address.

C. I never received the letter because of sending to the wrong address.

D. Sent to wrong address, I never received the letter.

Question 19. In your country, schools are open to all. They accept children of any race, colour or creed.

A. In our country, schools are open to all children irrespective of race, colour or creed.

B. In our country, schools are open to all children except for race, colour or creed.

C. Apart from race, colour or creed, schools are open to all children in your country.

D. Children of any race, colour or creed can be admitted to our schools when they are opened.

Question 20. He felt very tired. He was determined to continue to climb up the mountain.

A. He felt so tired that he was determined to continue to climb up the mountain.

B. Feeling very tired, he was determined to continue to climb up the mountain.

C. Tired as he might, he was determined to continue to climb up the mountain.

D. As a result of his tiredness, he was determined to continue to climb up the mountain.

9

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13 tháng 4 2021

Question 1. The young girl has great experience in nursing. She has worked as a hospital volunteer for years.

A. Before she worked as a hospital volunteer for years, the young girl has great experience in nursing.

B. Much as she has worked as a hospital volunteer for years, the young girl has great experience in nursing.

C. Having worked as a hospital volunteer for years, the young girl has great experience in nursing.

D. With great experience in nursing, the young girl has worked as a hospital volunteer for years.

Question 2. Peter told us about his leaving the school. He did it on his arrival at the meeting.

A. Only after his leaving the school did Peter inform us of his arrival at the meeting.

B. Not until Peter told us that he would leave the school did he arrive at the meeting.

C. Hardly had Peter informed us about his leaving the school when he arrived at the meeting.

D. No sooner had Peter arrived at the meeting than he told us about his leaving the school.

Question 3. He was successful because he was determined to pursue personal goals. He was not talented.

A. In addition to his determination, his talent ensured his success in pursuing his goals.

B. His determination to pursue personal goals made him successful and talented.

C. It was his determination to pursue personal goals, not talent, that contributed to his success.

D. His success lay in his natural ability, not in his determination to pursue personal goals.

Question 4. There was a serious flood. All local pupils couldn’t go to school on that day.

A. The serious flood prevented all local pupils not go to school on that day.

B. The serious flood hindered all local pupils from going to school on that day.

C. The serious flood made all pupils from not going to school on that day.

D. The serious flood caused all local pupils not go to school on that day.

Question 5. He did not remember the meeting. He went out for a coffee with his friends then.

A. Not remember the meeting, he went out for a coffee with his friends.

B. Not to remember the meeting, he went out for a coffee with his friends.

C. Not remembered the meeting, he went out for a coffee with his friends.

D. Not remembering the meeting, he went out for a coffee with his friends.

Question 6. They left their home early. They didn’t want to miss the first train.

A. They left their home early so as to not miss the first train.

B. They left their home early for fear that they wouldn’t miss the first train.

C. They left their home early so as not to miss the first train.

D. They left their home early in order that not to miss the first train.

Question 7. My sisters used to get on with each other. Now they hardly speak.

A. My sisters were once close, but they rarely speak to each other now.

B. My sisters do not speak to each other much, but they are good friends.

C. My sisters rarely speak because they have never liked each other.

D. Because they have never got on, my sisters do not speak to each other.

Question 8. The soccer team knew they lost the match. They soon started to blame each other.

A. Not only did the soccer team lose the match but they blamed each other as well.

B. No sooner had the soccer team started to blame each other than they knew they lost the match.

C. As soon as they blamed each other, the soccer team knew they lost the match.

D. Hardly had the soccer team known they lost the match when they started to blame each other.

A. Being friends for years, we find it quite easy to share secrets.

B. We find it quite easy to share secrets, being friends for years.

C. We have been friends so that it is quite easy to share secrets between us.

D. Having been friends for years, we find it quite easy to share secrets between us.

Question 10. I started training to be an accountant six months ago. I’ve got more months to go and then I have to take exams.

A. By the time I’ve taken my exam, I will have started training to be an accountant for a year.

B. By the time I take my exam, I will have been in training to be an accountant for a year.

C. By the time I took my exam, I would have trained to be an accountant for a year.

D. By the time I’ve taken my exam, I will be training for a year.

Question 11. The government knows the extent of the problem. The government needs to take action soon.

A. The government knows the extent of the problem whereas it needs to take action soon.

B. The government knows the extent of the problem so that it needs to take action soon.

C. Knowing the extent of the problem, the government needs to take action soon.

D. The government knows the extent of the problem, or else it needs to take action soon.

Question 12. The substance is very toxic. Protective clothing must be worn at all times.

A. Since the substance is very toxic, so protective clothing must be worn at all times.

B. So toxic is the substance that protective clothing must be worn at all times.

C. The substance is such toxic that protective clothing must be worn at all times.

D. The substance is too toxic to wear protective clothing at all times.

Question 13. I accepted the new job after all. It is making me feel exhausted.

A. Perhaps I shouldn’t have accepted this new job, as it’s making me feel exhausted.

B. Perhaps it would have been better if I hadn’t agreed to this new job since it is so boring.

C. It is of deep regret that I didn’t turn down the job offer due to its hardship and long hour work.

D. If it had not been for my acceptance the new job offer, I wouldn’t have felt exhausted.

Question 14. Since 1970, the United Nations has been celebrating April 22nd as Earth Day. It attracts millions of people worldwide to join in to promote public awareness of environmental protection.

A. Since 1970, the UNs has been celebrating April 22nd as Earth Day because it attracts millions of people worldwide to join in to promote public awareness of environmental protection.

B. The UNs has been celebrating April 22nd as Earth Day, which millions of people worldwide are attracted to join in it to promote public awareness of environmental protection.

C. Since 1970, the UNs has been celebrating April 22nd as Earth Day, which attracts millions of people worldwide to join in to promote public awareness of environmental protection.

D. Since 1970, the UNs has been celebrating April 22nd as Earth Day so that more people join in to promote public awareness of environmental protection.

Question 15. We found the bad weather very inconvenient. We chose to find a place for the night.

A. The bad weather prevented us from driving any further.

B. Bad weather was approaching, so we started to look for a place to stay.

C. Seeing that the bad weather had set in, we decided to find somewhere to spend the night.

D. Because the climate was so severe, we were worried about what we’d do at night.

Question 16. He held the rope with one hand. He stretched it out.

A. The rope is held with one hand then he stretched it out.

B. Stretching the rope out, he holds it with one hand.

C. Holding the rope with one hand, he stretched it out.

D. He stretched the rope with one hand and held it.

Question 17. The plan may be ingenious. It will never work in practice.

A. Ingenious as it may be, the plan will never work in practice.

B. Ingenious as may the plan, it will never work in practice.

C. The plan may be too ingenious to work in practice.

D. The plan is as impractical as it is ingenious.

Question 18. I never received the letter. It was sent to the wrong address.

A. Since it was sent to the wrong address, I have never received the letter.

B. I never received the letter because it was sent to the wrong address.

C. I never received the letter because of sending to the wrong address.

D. Sent to wrong address, I never received the letter.

Question 19. In your country, schools are open to all. They accept children of any race, colour or creed.

A. In our country, schools are open to all children irrespective of race, colour or creed.

B. In our country, schools are open to all children except for race, colour or creed.

C. Apart from race, colour or creed, schools are open to all children in your country.

D. Children of any race, colour or creed can be admitted to our schools when they are opened.

Question 20. He felt very tired. He was determined to continue to climb up the mountain.

A. He felt so tired that he was determined to continue to climb up the mountain.

B. Feeling very tired, he was determined to continue to climb up the mountain.

C. Tired as he might, he was determined to continue to climb up the mountain.

D. As a result of his tiredness, he was determined to continue to climb up the mountain.

14 tháng 6 2021

Câu 1

1) \(A=\sqrt{20}-\sqrt{45}+\sqrt{6+2\sqrt{5}}\)

\(=2\sqrt{5}-3\sqrt{5}+\sqrt{\left(\sqrt{5}\right)^2+2\sqrt{5}+1}\)

\(=-\sqrt{5}+\sqrt{\left(\sqrt{5}+1\right)^2}\)

\(=-\sqrt{5}+\sqrt{5}+1\)

\(=1\)

2) ĐKXĐ: \(x>0;x\ne1\)

\(B=\left(\dfrac{1}{x-\sqrt{x}}+\dfrac{1}{\sqrt{x}-1}\right):\dfrac{\sqrt{x}+1}{\left(\sqrt{x}-1\right)^2}\)

\(=\left(\dfrac{1}{\sqrt{x}\left(\sqrt{x}-1\right)}+\dfrac{1}{\sqrt{x}-1}\right).\dfrac{\left(\sqrt{x}-1\right)^2}{\sqrt{x}+1}\)

\(=\dfrac{1+\sqrt{x}}{\sqrt{x}\left(\sqrt{x}-1\right)}.\dfrac{\left(\sqrt{x}-1\right)^2}{\sqrt{x}+1}\)

\(=\dfrac{\sqrt{x}-1}{\sqrt{x}}\)

\(\Rightarrow B=\dfrac{\sqrt{x}-1}{\sqrt{x}}=\dfrac{1}{2}\)

\(\Leftrightarrow2\left(\sqrt{x}-1\right)=\sqrt{x}\)

\(\Leftrightarrow2\sqrt{x}-2=\sqrt{x}\)

\(\Leftrightarrow2\sqrt{x}-\sqrt{x}=2\)

\(\Leftrightarrow\sqrt{x}=2\)

\(\Rightarrow x=4\left(tmđk\right)\)

14 tháng 6 2021

Câu 2

1) Phương trình \(x^2-6x+5=0\) có:

\(a+b+c=1-6+5=0\)

\(\Rightarrow\) Phương trình có hai nghiệm phân biệt \(x_1=1\) và \(x_2=\dfrac{c}{a}=5\)

2) \(\left\{{}\begin{matrix}2\left(x+2\right)=3\left(y-1\right)\\3x+y=6\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}2x+4=3y-3\\3x+y=6\end{matrix}\right.\)

\(\Leftrightarrow\left\{{}\begin{matrix}2x-3y=-7\\3x+y=6\end{matrix}\right.\)

\(\Leftrightarrow\left\{{}\begin{matrix}2x-3y=-7\\9x+3y=18\end{matrix}\right.\)

\(\Leftrightarrow\left\{{}\begin{matrix}11x=11\\3x+y=6\end{matrix}\right.\)

\(\Leftrightarrow\left\{{}\begin{matrix}x=1\\3+y=6\end{matrix}\right.\)

\(\Leftrightarrow\left\{{}\begin{matrix}x=1\\y=3\end{matrix}\right.\)

17 tháng 5 2021

wow em đang có ý định nè mà tiếng việt hay anh vậy cô

Em xin chúc tất cả các anh chị thi cuối kì, thi vào 10, thi tốt nghiệp THPT,...sẽ thật bình tĩnh, kết quả cao,...