Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
V Choose the best answer (A, B, C or D).
1.………….. loss can be caused by noise pollution.
A. soundB. hearingC. listeningD. audio
2.Ships spill oil in oceans and rivers. This leads ………….. the death of many aquatic animals and plants.
A. toB. inC. fromD. at
3.Households pollute water sources by ………….. waste into ponds, lakes, and rivers.
A. damagingB. dumpingC. losingD. leading
4.This month’s electricity bill is too high ………….. the air conditioner is turned on all the time.
A. sinceB. due toC. althoughD. because of
5.The government has come ………….. a solution to the water problems of the city.
A. up toB. up withC. to withD. on to
6.All the aquatic plants and animals will die if the factory ………….. dumping poison into the lake.
A. will keepB. to keepC. keptD. keeps
7.A lot of fish has died recently because of the ………….. water in this lake.
A. contaminatingB. contaminatedC. contaminateD. contaminant
8.If the air was clean, we ………….. have to wear masks when going out.
A. wouldn’B. won’tC. wouldD. will
9.If I ………….. you, I ………….. water from that dirty tap.
A. am - will drinkB. am - won’t drink
C. were - would drinkD. were - wouldn’t drink
10.If he ………….. trash around his garden, the garden would look very nice now.
A. will throwB. would throwC. didn’t throwD. doesn’t throw
VI Put the verbs into the correct forms.
1.If people (be) …… were…………. fully aware of the dangers of air pollution, they (damage) …… wouldn't…………. the atmosphere this way.
2.If I (be) ……… were………. you, I (turn) ……… would turn………. the volume down for him to sleep.
3.We (not be) ……… will not be ………. able to drink that water if it is not refined.
4.If you (reduce) ……… reduced………. the number of bulbs in your house, you (pay) ……… would pay………. less money for the electricity bill next month.
5.If many animals and plants die, it (unbalance) ……… will unbalance………. our ecosystem.
Không chắc
Noise is constant and loud sound. To measure the loudness, or volume of sounds, people use a unit called a decibel. When a sound is louder than 70 decibels, it can cause noise pollution. Do you know that the noise from a vacuum cleaner or a motorcycle can result in permanent hearing loss after eight hours? The sounds of a concert are even more serious. They can reach as high as 130 decibels and may cause immediate and permanent hearing loss. Noise pollution can also lead to headaches and high blood pressure. If you are listening to music through headphones, and other people can hear it. it means the music is too loud and unsafe. If there seems to be a ringing or buzzing in your ears, it means the noise is affecting you and damaging your hearing- Wearing earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels can help you reduce the effects of noise pollution.
1. What do people use to measure the loundness or volume of sounds ?
They use a unit called a decibel to measure the loundness or volume of sounds
2. Does the noise from a vacuum cleaner result in pernament hearing loss after eight hours ?
Yes, it does
3. What can noise pollution also lead to ?
It can also lead to headaches and high blood pressure
4. Is the music safe when you listen to it through headphones , and other people can hear it as well ?
No, it isn't
5. What can you do to help reduce the effects of noise pollution ?
I can wear earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels to help reduce the effects of noise pollution
Give correct form of the words in brackets:
1. Factories dump........industrial........ waste into lakes and rivers . (industry)
2. The ......contamination........ of water can make people and other animals die . (contaminate)
3.Households dump waste into the river so it is ......polluted..........(pollute)
4.Since the parents were exposed to.......... radioactive... , their children have birth defects .(radioactive)
5. If we use water .....carefully........, more people will have fresh water.(care)
6. The........dying.......... fish are floating in the water . (die)
7. Do you know what......pollutants........ cause air pollution? (pollute)
8. The river is ...........contaminated..............by the dumping from nearby factories.(contaminate)
9. Noise pollution can also lead to headaches and high blood..............pressure............(press)
10. Dumping............industrial............waste into the lakes and rivers has cause serious water pollution.(industry)
Read the passage below and decide which option best fits each space
There are two main factors that make it difficult to overcome poverty in the countryside. First, there is a (1) .TENDENCY.. to inherit one's occupation. If a person's parents work in agriculture, he will have chances to work in a agriculture, and the income levels of many (2) .FARMERS.. are very low. Another main problem is thet families in the countryside are usually (3) .LARGE .. Before machines and modern technology are applied to farm work, the farm family used children as workers. But now (40 .ECONOMICAL.. conditions have changed they still remain large families including several generations. The older members are (5) .TOO OLD TO.. work hard and the young men go to the cities to look for jobs. Those who are left behind have an ever-grater burden to bear.
Các nhà khoa học từ lâu đã phải vật lộn với cách đo lường tác động của biến đổi khí hậu đối với động vật hoang dã. Điều này đặc biệt đúng đối với các loài chim bay vào và ra khỏi các khu vực ven biển giáp với Bắc Băng Dương. Trong quá khứ, các nhà nghiên cứu phụ thuộc chủ yếu vào thông tin thu thập bởi vệ tinh để theo dõi sự di chuyển của chim và động vật. Nhưng phương pháp này có thể tốn kém và dẫn đến lượng thông tin khổng lồ, có thể khó xử lý. Bây giờ các nhà khoa học đang chuyển sang một loại công nghệ khác để giúp họ theo dõi chim và động vật hoang dã khác. Songbirds đặc biệt khó học trong tự nhiên. Họ có thể bay qua hàng ngàn cây số và cơ thể của họ quá nhỏ cho các thiết bị theo dõi điện tử. Một báo cáo mới cho biết về một dự án trong đó các nhà nghiên cứu ghi nhận loài chim biết hót và sau đó đưa âm thanh vào một chương trình máy tính để nghiên cứu. Các nhà nghiên cứu đã tạo ra các thuật toán học máy với khả năng tập trung vào các cuộc gọi chim trong khi bỏ qua các tiếng ồn khác. Thuật toán giúp cải thiện khả năng dự đoán kết quả chính xác. Các phương pháp học máy tương tự đã được sử dụng để nhận ra lời nói của con người.
1. Would try
2. Would make
3. Would have been improved
4. Will continue
5. Will be left
6. Growing up
7. Will go on
8. Stopped
9. Were controlled
10. Wouldn't become
11. Had
12. Would be
13. Will be
