your help, we can finish the task in time.

                  A. Thanks to              B. Thanks for               C. Because                       D. Thank

We should plant more trees on       sides of the street.

                  A. either                     B. both                          C. all                                   D. each

The world’s population was about 6.5 billion in 2008. ___46___ three billion people ___47___ Asia now. That’s about half of the world’s population.

China has the ___48___ population in the world, and about one fifth of the people in the world live in China. ___49___ the large population, there is ___50___ living space for each family. And it’s difficult for lots of people to find jobs. A large population also causes many ___51___ for ___52___ nation. For example, we are short ___53___ energy and water. Most cities are more ___54___ than before, and the traffic is much ___55___. The large population ___56___ a serious problem.

So far, our government has taken many measures to control the population. One is know ___57___ the one-child policy. It has worked ___58___ in controlling China’s population. Thanks to the policy, China is developing ___59___ and people’s living conditions are improving rapidly. However, the population problem is ___60___ serious in China. We still have a long way to go.

1.A. About         B. More       C. Over       D. Less

2.A. lived in        B. live in      C. lives in     D. live

3.A. largest         B. biggest     C. biggest      D. most

4.A. As            B. Because    C. For         D. Because of

5.A. more          B. less        C. little       D. fewer

6.A. difficulty       B. difficult    C. difficulty    D. difference

7.A. the all         B. all         C. the whole    D. whole

8.A. for            B. of         C. in          D. to

9.A. crowd         B. crowds     C. crowding    D. crowded

10.A. busy         B. heavy       C. heavily      D. heavier

11.A. become       B. becomes    C. became     D. has became

12.A. for          B. at          C. as          D. in

13.A. well         B. good        C. hard        D. hardly

14.A. quick        B. quickly      C. rapid       D. fast

15.A. ever         B. never        C. ready      D. still

About _____ of the world population is Chinese.

A. one third    B. one fourth    C. one fifth    D. one sixth

_____ is a program to help children’s education in poor areas.

A. Project Hope       B. Edmonton Community Service  

C. Kids in the hall     D. China Greener

Mr. and Mrs. Green work in the hospital, but they have no children. So they belong to _____.

A. extended family   B. nuclear family   C. DINK family   D. celibatarianger

Many _____ in ______ could hear no better than 65-year-old people, for they like pop music.

A. adults, the USA              B. adults; England  

C. teenagers: the USA           D. teenagers: England

Acid rain comes from _____. 

A. the river   B. the water   C. the clouds   D. the forests

Every minute about ____ babies are born in the word, so the world’s population is increasing by _____million every year.

A. 256 ;  8      B. 256;  80       C. 261 ;  8      D. 261;  80

In most parts of the world, many students help their school make less pollution. They join in “environment(环境) clubs”. In an environment club, people work together to make our environment clean.

Here are the things students often do.

Turn off the water! Do you know that some toilets can waste(浪费) twenty to forty tons of water an hour?

In a year, that would fill a small river! In environment clubs, students mend those broken toilets.

No-car day. On a no-car day, nobody comes to school in a car—not the students and not the teachers! Cars give pollution to our air, so remember:

Walk, jump, bike or run.

Use your legs! It’s lots of fun!

No-garbage(垃圾) lunches. How much do you throw away after lunch? Environment clubs ask students to bring their lunches in bags that can be used again. Every week they will choose the classes that make the least garbage and report them to the whole school!

We love our environment. Let’s work together to make it clean!

1. Environment clubs ask students      .

A. to run to school every day                                         B. to play sports every day

C. not to throw away lunch bags                                   D. not to forget to take cars

2.From this passage we know the students usually have lunch      .

A. at school                                  B. in clubs                     C. at home                   D. in shops

3.The writer wrote the passage to tell students to     .

A. join in clubs                                                                     B. help teachers

C. make less pollution                                                       D. clean schools