5. The problem is _________ difficult that I can’t work it out.

A. so　 B. such　 C.　 so a　 D.　 such a

4. Neither Wei Hua nor her mother ________ to America before .

A. Have gone　 B. has gone　 C. has been　 D. have been

3. ________ endangered animals is very important to us .

　A. Save　　 B. Saved　　 C. Saving　 D. Being saved

2. – How long _______ you _______ your hometown ?

-- More than two years.

A. Have ; left　 B. have ; been away　 C. have ; been away from　 D. were ; away

1. In big cities , cars and buses __________ the air .

A. Pollute　 B. have polluted　 C. pollution　 D. polluted　

1. His bad b_______ makes us very angry and sometimes we want to beat him.

2. In my hometown , the wind often blows strongly with a lot of s_______ in spring.

3. We have built the Great Green Wall so that the trees can p ________ the wind from blowing the earth away.

4.The sun r________ in the east and sets in the west.

5. – What do you think of the l______ of our living conditions ?

--- Just so –so. I hope it will be better.

(二)、选择填空

1.There are many leaves on the ground. When the wind comes, the leaves will be ________.

A. Taken up　　　 B. taken away　 C. taken to　　 D. taken in　

2. That white house caught fire yesterday, so smoke is ____ from it now.

A. Lifting　　 B. raising　 C. rising　 D. climbing

3. She managed to escape _____ the burning car.

　A. in　 B. from　 C. by　 D. to　

4. He prefers playing basketball _________ she prefers playing computer games.

5.Mr . lee gave us a speech yesterday and she ________ the subject social times during his speech.

A. refers to　　 B. referred to　 C. referred to　 D. Will refer to

5. 学生听录音并跟读，然后熟读对话。(3)

4. 然后找出对话中的重点短语和句型，教师板书。(5)

3. 让学生朗读1a，找出不理解的句子，小组讨论解决，再把不会的东西小组提出来。(2)

2. 再读1a 并完成1b中选择题。(3)