4. 由短文第4段“About 3,500 meteorites may fall on earth every year, but only very few are found.”一句可推断，答案选C。

3. Mr Pettifer发现树梢来回摇摆是因为下落的陨石使它来回动，故答案选B。

2. 由短文第2段中“…，and might be over four thousand million”4000百万即40亿，故答案应是D。

1. 从短文第1句看出陨石落下时几乎砸着Mr Pettifer，故答案应选A。

5. Mr. Pettifer was ______ to see the falling of the meteorite.

　　 A. happy 　　 B. afraid 　　 C. sorry 　　 D. angry

参考答案

4. ______ people see a meteorite fall although they visit the earth often each year.

　　 A. Quite a few 　 B. some 　 C. Few 　 D. Many

3. Mr. Pettifer found the tops of the trees coming and going because ______.

　　 A. the trees were afraid　

　　 B. the fast falling meteorite kept the tree tops moving

　　 C. it was going to rain　

　　 D. the moving was made by wind

2. The meteorite was already ______ years old.

　　 A. 40,000,000,000 　　 B. 40,000,000

　　 C. 400,000,000 　　 D. 4,000,000,000

1. The meteorite was ______ Mr Pettifer when it fell down.

　　 A. close to　 B. far from　 C. hitting　 D. coming to