第1题：
第2题：
III．阅读理解． (20分)
A
Dentists always ask questions when it is impossible for you to answer．One day ,my dentist had just pulled out one of my teeth and asked me to sit in a chair to rest for a while． I tried to say something ,but my mouth was full of cotton-wool(药棉)． He knew I collected stamps and asked me whether I got any new recently． He then asked me how my brother was and whether I liked my new job．
As I could not speak ,l either nodded or made strange noises to answer these questions． At the same time ,l tr;ed hard to use my tonguec舌头） to find the hole(洞) in the place of my bad tooth． Suddenly I felt very worried because the bad tooth was still there ,but I could not say any- thing． At last the dentist pulled the cotton-wool out of my mouth ,and I was able to tell lum that he had pulled out the wrong tooth．
( )21． Why did the dentist ask me to rest for a while?
A． I felt tired．
B． I felt painful．
C． I just had a tooth pulled out．
第3题：
A.director
B.guide
C.helper
D.assistant
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第6题：
A、dentist
B、the dentists'
C、the dentist's
D、the dentist
第7题：
25． When did I tell the dentist he had pulled out the wrong tooth in the end?
A． After the tooth was pulled out of my mouth．
B．After the cotton-wool was pulled out of my mouth．
C． When the dentist was asking me questions．
第8题：
By observing the behavior. of animals, scientists may be able to
A．prevent disasters.
B．organize groups of people.
C．predict earthquakes.
D．control areas of California.
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第10题：