2.为什么不参与他们的讨论呢？

Why not___    their discussion?

1.她是一位如此好的老师，我们都敬爱她。

She is       _       _that all of us respect and love her.

5. It seems      (possible) that people can fly.

4. There’s no time. I      (agree) that we can get to school on time.

3. There are many people      (talk) under the tree.

2. A tiger is a      (danger) animal.

1. There is so much       (pollute) in the world.

 Now we can see that many people are cutting down the trees in the forests. The forests are getting smaller and smaller. 1      Because they need wood and farmland. Some scientists say that there will never be any great forests in 20 or 30 years. 2 The answer will be terrible. 3 A lot of plants will die and animals will lose their home. 4 

It’s our duty to protect the forests well. 5  Let’s stop cutting down the trees and make the world greener and greener.

根据材料内容，从下面五个选项中选出能填入文中 空缺处的最佳选项，使短文完整、通顺。

1.      2.      3.     

4.      5.     

 I think the world will be an easy place to live in, because we 1 have machines and robots. & W They will 2 us to do all the  3 jobs and we don’t have to do 

things 4 washing and 5 the bed. I 6 that doctors will  be able to 7 us alive 8 a long time. I hope that when I am 80 years old, there 9  something that will keep me alive for 10    80 years，so I will live to be 160 years old.

1. A. will    B. could

    C. do    D. is

2. A. teach    B. help

   C. tell    D. ask

3. A. good    B. easy

  C. same    D. boring

4. A. like    B. as

   C. for    D. to

5. A. make    B. do

   C. doing    D. making

6. A. know    B. hope

   C. see    D. listen

7. A. let    B. keep

   C. learn    D. ask

8. A. to    B. with

   C. for    D. after

9. A. will    B. will be

   C. are    D. are going

10. A. other    B. many

C. more    D. another

10. —What do you think of tomorrow’s football match?

—      difficult    for us      the    match.

A. We’re; to  win    B. We’re; winning

C. It’s; to  win        D. It’s; win