Do you still get free plastic bags from the supermarkets? Things have changed.

  China has banned(禁止)free plastic bags at shops and supermarkets, and people have to pay for using plastic bags. The rule started on June 1 ， 2008. It came because our country tried to make litter less. Making super-thin (超薄) plastic bags has also been banned.

  The Chinese once used about 3,000,000,000 plastic shopping bags a day ， and they have caused pollution to the environment. The bags have become a main cause of plastic pollution because they are easy to break and people throw them here and there. So the Chinese people have to bring their own bags for shopping.

  What kind of shopping bag is the best to bring? Some students in Chongqing have a good idea. They make their own shopping bags. They use old clothes to make cloth bags, and send them to their parents as presents. They also ask their parents and friends to use cloth bags instead of plastic ones. They think it is their duty to protect the environment.

任务一：将画线部分译成汉语。

1._____________________________________

任务二 ：根据短文内容，回答问题。

2. What do people in China have to do now?

3. Why did China make this rule?

任务三：根据短文内容，选择正确答案。

(   ) 4. Some students in Chongqing      

A.  ask their parents to make cloth bags

B.  make cloth bags themselves

C.  pick up plastic bags everywhere

D.  buy cloth bags for their parents 

任务四：根据短文内容，判断正（T)误（F).

(   ) 5. The students in Chongqing make cloth bags with old clothes to send their friends for shopping.

 The Earth has warmed by about half a degree(0. 5^ ) over the last 100 years. It could be getting warmer on its own ， but many scientists think that people are making the Earth warmer by making a greenhouse effect. The greenhouse effect is important. Without it,the Earth would not be warm enough for us to live on. But just a little warmer than it is now could cause problems for humans ， plants and animals.

   Many of the things we do every day can change the Earth's temperature by sending greenhouse gases into the air. We send greenhouse gases into the air when we watch TV ， turn on lights ， dry hair ， play video games ， wash or dry our clothes or drive cars. The rubbish ( waste ) from factories and homes also produces greenhouse gases.

Even a small change in temperature can affect our weather. This can cause changes in the sea levels, the air,flooding, and our fresh water.

    The change in the temperature can also cause changes in the living places for animals and plants, endangering many animals.

    Global warming (全球变暖)is a big problem, and every little bit we do can help. We can save electricity. We can save energy in other ways such as by taking buses or walking rather than driving cars. We can recycle to reduce the rubbish and save natural resources such as trees, oil and metals. We can buy products that don't do bad to the environment and we can turn to 、solar energy. Remember the little bit that you do will bring a better world.

根据短文内容，选择最佳答案。

(   ) 1. Without the greenhouse effect ， we would _______

A.  not be able to live

B.  be safer

C.  have a cleaner earth

D.  have a better world

(   ) 2. Which of the following does not send greenhouse gases into the air?

A.  Turning on a light.

B.  Walking to school.

C.  Driving a car.

D.  Watching TV.

(   ) 3. The writer gives us advice on how to save energy in      

A.  Paragraph 2

B.  Paragraph 3

C.  Paragraph 4

D.  Paragraph 5

(   ) 4. Global warming is a big problem but

A.  we can't do anything to help

B.  we don't need to do anything

C.  we can do something to help

D.  we can do something to stop it

(   ) 5. In this passage, the scientists are mainly trying to make the readers
realize      

A. the earth could be getting warmer by itself

B.  the earth is getting warmer in 100 years

C.  the greenhouse effect is important

D.  humans are making the earth warmer

(   ) 5. ―Nobody wants to watch TV. _______，will you? 

―OK. I'll do it at once.

A.hut it off

B.Shut off it

C.Take it away

D.Take away it

(   ) 4.―Mom,I find it difficult to learn Chinese well.

―Do more reading ，_______you'll find it easy.

A. but B. or

C. and D.so

(   ) 3. ―Would you like to be a greener person?

― _______Everyone ought to protect the environment.

A.It's a pleasure.

B.Of course.

C.That's OK.

D.Good idea!

(   ) 2. Bad luck！ A bee bit me _______the head while I was picking apples on the tree.

A. on B. in

C. at D. with

(   ) 1. ―Is my T-shirt _________yet,Mom?

—Not yet. I've just washed it. It is still wet.

A. dirty B. clean

C. short    D. dry

上海的磁悬浮列车最高时速可达每小时431千米。

per hour.

我们经常用木材来造纸。

We often _____wood  _____ _____ paper.

来自太阳的能源用之不竭。

Power from the sun never _____ _____