Tìm lỗi sai1. A good artist like a good engineer learns as much from their mistakes as from successes.2. Almost all life depends to chemical reactions with oxygen to produce energy.Mọi người giải thíc...

Sửa lỗi sai:Question 1: We are going to visit our grandparents when we finished our final exams.A. are going to B. our C. when D. finishedQuestion 2: A good artist like a good engineer learns as much from their mistakes as from successes.A. like B. as C. their D. fromQuestion 3: Anyone who gambles on the stock exchange has to be prepared to loose money.A. Anyone who B. on C. has to be D. to loose moneyChọn từ trái nghĩa:Question 4: We're not...

#Tiếng anh lớp 8

0

N

nanako

4 tháng 6 2021

There is one mistake in each sentence. Find the mistake and write your correction in the space provided below. 1. Tom’s very good at science when his brother is absolutely hopeless. 2. A good artist like a good engineer learns as much from their mistakes as from successes. 3. Marry told me that it was the loveliest gift she has ever received. 4. The direct sources of fresh water in lakes are rain, melted snowy and ice. 5. Many women have reached high positions inbusiness but there are...

Sửa lỗi sai:

Question 1: We are going to visit our grandparents when we finished our final exams.
A. are going to B. our C. when D. finished
Question 2: A good artist like a good engineer learns as much from their mistakes as from successes.
A. like B. as C. their D. from
Question 3: Anyone who gambles on the stock exchange has to be prepared to loose money.
A. Anyone who B. on C. has to be D. to loose money

Chọn từ trái nghĩa:

Question 4: We're not (taking) on any new staff at the moment so that we can cut down the cost.
A. employing B. hiring C. offering D. laying off
Question 5: His performance (stood head and shoulders above) the rest.
A. was better than B. was worse than
C. became higher than D. became cheaper than

Chọn đáp án đúng:

Question 13: I haven't met my grandparents for five years.
A. I often met my grandparents five years ago.
B. I last met my grandparents five years ago.
C. I have met my grandparents for five years.
D. I didn't meet my grandparents five years ago.
Question 14: "Let's go to the cinema tonight”, he suggested.
A. He suggested that they went to the cinema that night.
B. He suggested them to go to the cinema that night.
C. He suggested their going to the cinema that night.
D. He suggested that let's them go to the cinema that night.
Question 15: Smoking is not allowed in public places such as: hospitals, schools.
A. You needn't smoke in public places such as: hospitals, schools.
B. You mustn't smoke in public places such as: hospitals, schools.
C. You don't smoke in public places such as: hospitals, schools.
D. You may smoke in public places such as: hospitals, schools.

Question 21: I deeply regret having spoken to her so severely yesterday. She was badly hurt.
A. If only I could apologize to her for having spoken to her so severely yesterday.
B. I wish I hadn't spoken to her so severely yesterday.
C. She must have been badly hurt because I had spoken to her so severely yesterday.
D. If I hadn't spoken to her so severely yesterday, she wouldn't be badly hurt.
Question 22: We couldn't solve the problem until our teacher arrived.
A. Not until we solved the problem could our teacher arrive.
B. When our teacher arrived, we solved the problem.
C. Until our teacher arrived, we were able to solve the problem.
D. Not until our teacher arrived could we solve the problem.

Chọn từ đồng nghĩa:

Question 25: In spite of poverty, we manage to (raise) our children properly.
A. give up B. go up C. make up D. bring up
Question 26: I am now (reconciled) with two of my estranged siblings - not just my older brother, but my sister, whom I hadn't spoken to for 17 years.
A. contactable B. harmonized C. opposed D. truthful

#Tiếng anh lớp 11

1

DT

Đỗ Thanh Hải

CTVVIP

4 tháng 6 2021

Sửa lỗi sai:

Question 1: We are going to visit our grandparents when we finished our final exams.
A. are going to B. our C. when D. finished
Question 2: A good artist like a good engineer learns as much from their mistakes as from successes.
A. like B. as C. their D. from
Question 3: Anyone who gambles on the stock exchange has to be prepared to loose money.
A. Anyone who B. on C. has to be D. to loose money

Chọn từ trái nghĩa:

Question 4: We're not (taking) on any new staff at the moment so that we can cut down the cost.
A. employing B. hiring C. offering D. laying off
Question 5: His performance (stood head and shoulders above) the rest.
A. was better than B. was worse than
C. became higher than D. became cheaper than

Chọn đáp án đúng:

Question 13: I haven't met my grandparents for five years.
A. I often met my grandparents five years ago.
B. I last met my grandparents five years ago.
C. I have met my grandparents for five years.
D. I didn't meet my grandparents five years ago.
Question 14: "Let's go to the cinema tonight”, he suggested.
A. He suggested that they went to the cinema that night.
B. He suggested them to go to the cinema that night.
C. He suggested their going to the cinema that night.
D. He suggested that let's them go to the cinema that night.
Question 15: Smoking is not allowed in public places such as: hospitals, schools.
A. You needn't smoke in public places such as: hospitals, schools.
B. You mustn't smoke in public places such as: hospitals, schools.
C. You don't smoke in public places such as: hospitals, schools.
D. You may smoke in public places such as: hospitals, schools.

Question 21: I deeply regret having spoken to her so severely yesterday. She was badly hurt.
A. If only I could apologize to her for having spoken to her so severely yesterday.
B. I wish I hadn't spoken to her so severely yesterday.
C. She must have been badly hurt because I had spoken to her so severely yesterday.
D. If I hadn't spoken to her so severely yesterday, she wouldn't be badly hurt.
Question 22: We couldn't solve the problem until our teacher arrived.
A. Not until we solved the problem could our teacher arrive.
B. When our teacher arrived, we solved the problem.
C. Until our teacher arrived, we were able to solve the problem.
D. Not until our teacher arrived could we solve the problem.

Chọn từ đồng nghĩa:

Question 25: In spite of poverty, we manage to (raise) our children properly.
A. give up B. go up C. make up D. bring up
Question 26: I am now (reconciled) with two of my estranged siblings - not just my older brother, but my sister, whom I hadn't spoken to for 17 years.
A. contactable B. harmonized C. opposed D. truthful

Đúng(1)

TP

Trần Phương

28 tháng 8 2017

#Tiếng anh lớp 9

2

S

_silverlining

CTVVIP

28 tháng 8 2017

There is one mistake in each sentence. Find the mistake and write your correction in the space provided below.

1. Tom’s very good at science when=> BUT his brother is absolutely hopeless.

2. A good artist like=> likes a good engineer learns as much from their mistakes as from successes.

3. Marry told me that it was the loveliest gift she has=> had ever received.

4. The direct sources of fresh water in lakes are rain, melted snowy=> snow and ice.

5. Many women have reached high positions inbusiness but there are still little=> few women in government.

HT

Huy Thắng Nguyễn

28 tháng 8 2017

There is one mistake in each sentence. Find the mistake and write your correction in the space provided below.

1. Tom’s very good at science when -> while his brother is absolutely hopeless.

2. A good artist like a good engineer learns as much from their -> his mistakes as from successes.

3. Marry told me that it was the loveliest gift she has -> had ever received.

4. The direct sources of fresh water in lakes are rain, melted snowy -> snow and ice.

5. Many women have reached high positions in business but there are still little -> few women in government.

* Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30. Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of...

LQ

Lê Quỳnh Anh

16 tháng 2 2018

* Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30.

Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of energy. As food, they fuel our bodies and those of most other creatures. In such forms as oil, gas, and coal, they heat our homes, run our factories and power our cars.

Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. The most common photosynthetic pigment is chlorophyll. The bright green color characteristic of plants is caused by it. Most algae have additional pigments that may mask the green chlorophyll. Because of these pigments, algae may be not only green but brown, red, blue or even black.

In a series of enzyme-controlled reactions, the solar energy captured by chlorophyll and other pigments is used to make simple sugars, with carbon dioxide and water as the raw materials. Carbon dioxide is one of very few carbon- containing molecules not considered to be organic compounds. Photosynthesis then converts carbon from an inorganic to an organic form. This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose. The glucose is then used to make other organic compounds. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply.

Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They are called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs. Many organisms cannot produce their own food and must obtain energy by eating organic matter. These are called heterotrophs.

(Hooked on TOEFL Reading - LinguaForum

It can be inferred from the passage that the author considers solar energy to be_________.

A. useless to most bacteria and algae

B. a permanent and everlasting source of energy

C. a perfect solution to the energy problem

D. essential for every organism on earth

1

DH

Dương Hoàn Anh

16 tháng 2 2018

Câu đề bài: Ta có thể suy ra từ đoạn văn rằng tác giả coi năng lượng mặt trời là _________ .

Đáp án D: cần thiết cho mọi sinh vật trên trái đất Các đáp án còn lại:

A. Vô dụng với hầu hết vi khuẩn và tảo

B. Nguồn năng lượng lâu dài và vĩnh cửu

C. Một giải pháp hoàn hảo cho vấn đề năng lượng

Thông tin trong bài:

Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply. - Quá trình quang hợp bắt đầu khi năng lượng mặt trời được hấp thụ bởi các hóa chất gọi là sắc tố quang hợp được chứa trong một sinh vật. Ngoài ra, quang hợp tạo ra khí oxy. Tất cả khí oxy trên trái đất, cả trong khí quyển chúng ta hít thở và trong đại dương, được sinh ra bởi các sinh vật quang hợp. Quang hợp liên tục bổ sung nguồn cung cấp oxy của trái đất

* Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30. Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of...

DM

Dương Minh

10 tháng 12 2017

* Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30.

Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of energy. As food, they fuel our bodies and those of most other creatures. In such forms as oil, gas, and coal, they heat our homes, run our factories and power our cars.

Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. The most common photosynthetic pigment is chlorophyll. The bright green color characteristic of plants is caused by it. Most algae have additional pigments that may mask the green chlorophyll. Because of these pigments, algae may be not only green but brown, red, blue or even black.

In a series of enzyme-controlled reactions, the solar energy captured by chlorophyll and other pigments is used to make simple sugars, with carbon dioxide and water as the raw materials. Carbon dioxide is one of very few carbon- containing molecules not considered to be organic compounds. Photosynthesis then converts carbon from an inorganic to an organic form. This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose. The glucose is then used to make other organic compounds. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply.

Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They are called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs. Many organisms cannot produce their own food and must obtain energy by eating organic matter. These are called heterotrophs.

(Hooked on TOEFL Reading - LinguaForum)

It can be inferred from the passage that the author considers solar energy to be_________.

A. useless to most bacteria and algae

B. a permanent and everlasting source of energy

C. a perfect solution to the energy problem

D. essential for every organism on earth

1

NH

Nguyen Hoang Hai

10 tháng 12 2017

ĐÁP ÁN D

Câu đề bài: Ta có thể suy ra từ đoạn văn rằng tác giả coi năng lượng mặt trời là _________ .

Đáp án D: cần thiết cho mọi sinh vật trên trái đất Các đáp án còn lại:

A. Vô dụng với hầu hết vi khuẩn và tảo

B. Nguồn năng lượng lâu dài và vĩnh cửu

C. Một giải pháp hoàn hảo cho vấn đề năng lượng

Thông tin trong bài:

Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply. - Quá trình quang hợp bắt đầu khi năng lượng mặt trời được hấp thụ bởi các hóa chất gọi là sắc tố quang hợp được chứa trong một sinh vật. Ngoài ra, quang hợp tạo ra khí oxy. Tất cả khí oxy trên trái đất, cả trong khí quyển chúng ta hít thở và trong đại dương, được sinh ra bởi các sinh vật quang hợp. Quang hợp liên tục bổ sung nguồn cung cấp oxy của trái đất

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30. Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of...

LQ

Lê Quỳnh Anh

9 tháng 2 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30.

Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of energy. As food, they fuel our bodies and those of most other creatures. In such forms as oil, gas, and coal, they heat our homes, run our factories and power our cars.

Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. The most common photosynthetic pigment is chlorophyll. The bright green color characteristic of plants is caused by it. Most algae have additional pigments that may mask the green chlorophyll. Because of these pigments, algae may be not only green but brown, red, blue or even black.

In a series of enzyme-controlled reactions, the solar energy captured by chlorophyll and other pigments is used to make simple sugars, with carbon dioxide and water as the raw materials. Carbon dioxide is one of very few carbon- containing molecules not considered to be organic compounds. Photosynthesis then converts carbon from an inorganic to an organic form. This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose. The glucose is then used to make other organic compounds. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply.

Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They are called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs. Many organisms cannot produce their own food and must obtain energy by eating organic matter. These are called heterotrophs.

It can be inferred from the passage that the author considers solar energy to be_________.

A. useless to most bacteria and algae

B. a permanent and everlasting source of energy

C. a perfect solution to the energy problem

D. essential for every organism on earth

1

DH

Dương Hoàn Anh

9 tháng 2 2018

Chọn D

Câu đề bài: Ta có thể suy ra từ đoạn văn rằng tác giả coi năng lượng mặt trời là _________ .

Đáp án D: cần thiết cho mọi sinh vật trên trái đất Các đáp án còn lại:

A. Vô dụng với hầu hết vi khuẩn và tảo

B. Nguồn năng lượng lâu dài và vĩnh cửu

C. Một giải pháp hoàn hảo cho vấn đề năng lượng

Thông tin trong bài:

Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply. - Quá trình quang hợp bắt đầu khi năng lượng mặt trời được hấp thụ bởi các hóa chất gọi là sắc tố quang hợp được chứa trong một sinh vật. Ngoài ra, quang hợp tạo ra khí oxy. Tất cả khí oxy trên trái đất, cả trong khí quyển chúng ta hít thở và trong đại dương, được sinh ra bởi các sinh vật quang hợp. Quang hợp liên tục bổ sung nguồn cung cấp oxy của trái đất

1. Natural disasters such as storms, floods or droughts can easily __________ their crops or harvests. a. damage b. harm c. destroy d. all are correct2. Farming depends a lot on good luck from nature while the country offers them few to get work. a. opportunities b. things c. advantage d. assistance3. A lot of people rush to the city, which the population there. a. reduces b. decreases c....

TH

Trương Hồ Minh Nguyệt

14 tháng 12 2021

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30. Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of...

#Tiếng anh lớp 8

2

KY

Khinh Yên

14 tháng 12 2021

1. Natural disasters such as storms, floods or droughts can easily __________ their crops or harvests.

a. damage b. harm c. destroy d. all are correct

2. Farming depends a lot on good luck from nature while the country offers them few to get work.

a. opportunities b. things c. advantage d. assistance

3. A lot of people rush to the city, which the population there.

a. reduces b. decreases c. increases d. falls down

4. They are leaving behind their traditional __________ of life and moving to the city.

a. road b. street c. way d. route

5. The air in the countryside is always __________.

a. quite b. peaceful c. beautiful d. clean

Đúng(2)

MN

minh nguyet

14 tháng 12 2021

1. Natural disasters such as storms, floods or droughts can easily __________ their crops or harvests.

a. damage b. harm c. destroy d. all are correct

2. Farming depends a lot on good luck from nature while the country offers them few to get work.

a. opportunities b. things c. advantage d. assistance

3. A lot of people rush to the city, which the population there.

a. reduces b. decreases c. increases d. falls down

4. They are leaving behind their traditional __________ of life and moving to the city.

a. road b. street c. way d. route

5. The air in the countryside is always __________.

a. quite b. peaceful c. beautiful d. clean

Đúng(2)

LQ

Lê Quỳnh Anh

22 tháng 3 2017

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30.

Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of energy. As food, they fuel our bodies and those of most other creatures. In such forms as oil, gas, and coal, they heat our homes, run our factories and power our cars.

Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. The most common photosynthetic pigment is chlorophyll. The bright green color characteristic of plants is caused by it. Most algae have additional pigments that may mask the green chlorophyll. Because of these pigments, algae may be not only green but brown, red, blue or even black.

In a series of enzyme-controlled reactions, the solar energy captured by chlorophyll and other pigments is used to make simple sugars, with carbon dioxide and water as the raw materials. Carbon dioxide is one of very few carbon- containing molecules not considered to be organic compounds. Photosynthesis then converts carbon from an inorganic to an organic form. This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose. The glucose is then used to make other organic compounds. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply.

Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They are called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs. Many organisms cannot produce their own food and must obtain energy by eating organic matter. These are called heterotrophs.

From the passage, we can see that___________.

A. Most plants have additional pigments

B. Algae are a kind of simple plants

C. Autotrophs obtain energy by eating organic matter

D. Oxygen helps the process of photosynthesis

1

DH

Dương Hoàn Anh

22 tháng 3 2017

Chọn B

Câu đề bài: Từ đoạn văn, chúng ta có thể thấy rằng .

Đáp án B: Tảo là một loại cây đơn giản.

Các đáp án còn lại:

A. Hầu hết thực vật có bổ sung sắc tố

C. Sinh vật tự dưỡng có được năng lượng bằng cách ăn chất hữu cơ.

D. Oxy giúp cho quá trình quang hợp.

Thông tin trong bài:

Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They arc called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs.

Các sinh vật có khả năng quang hợp có thể thu được tất cả năng lượng cần thiết từ ánh sáng mặt trời và không cần ăn. Chúng được gọi là tự dưỡng. Thực vật là những chất tự dưỡng quen thuộc nhất trên đất liền. Trong đại dương, tảo và vi khuẩn là những chất tự dưỡng quan trọng nhất.

* Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30. Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of...

LQ

Lê Quỳnh Anh

1 tháng 6 2018

* Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30.

Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of energy. As food, they fuel our bodies and those of most other creatures. In such forms as oil, gas, and coal, they heat our homes, run our factories and power our cars.

Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. The most common photosynthetic pigment is chlorophyll. The bright green color characteristic of plants is caused by it. Most algae have additional pigments that may mask the green chlorophyll. Because of these pigments, algae may be not only green but brown, red, blue or even black.

In a series of enzyme-controlled reactions, the solar energy captured by chlorophyll and other pigments is used to make simple sugars, with carbon dioxide and water as the raw materials. Carbon dioxide is one of very few carbon- containing molecules not considered to be organic compounds. Photosynthesis then converts carbon from an inorganic to an organic form. This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose. The glucose is then used to make other organic compounds. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply.

Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They are called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs. Many organisms cannot produce their own food and must obtain energy by eating organic matter. These are called heterotrophs.

(Hooked on TOEFL Reading - LinguaForum

From the passage, we can see that___________.

A. Most plants have additional pigments

B. Algae are a kind of simple plants

C. Autotrophs obtain energy by eating organic matter

D. Oxygen helps the process of photosynthesis

1

DH

Dương Hoàn Anh

1 tháng 6 2018

Câu đề bài: Từ đoạn văn, chúng ta có thể thấy rằng .

Đáp án B: Tảo là một loại cây đơn giản.

Các đáp án còn lại:

A. Hầu hết thực vật có bổ sung sắc tố

C. Sinh vật tự dưỡng có được năng lượng bằng cách ăn chất hữu cơ.

D. Oxy giúp cho quá trình quang hợp.

Thông tin trong bài:

Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They arc called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs.

Các sinh vật có khả năng quang hợp có thể thu được tất cả năng lượng cần thiết từ ánh sáng mặt trời và không cần ăn. Chúng được gọi là tự dưỡng. Thực vật là những chất tự dưỡng quen thuộc nhất trên đất liền. Trong đại dương, tảo và vi khuẩn là những chất tự dưỡng quan trọng nhất.