阅读理解。

     This is Mr. Smith. He is from Washington D.C. of America. He is tall and fat. He has a big mouth and big

nose. He has two big eyes with long brown hair. He is in Beijing now. He teaches us English in our school. He

often wears a white shirt and black pants. He can speak a little Chinese. He is very funny. He often makes jokes with us and tells us interesting (有趣的) stories. He likes teaching in China very much. And he says he likes to

live in Beijing. We like his lessons very much. We can learn much from him. He is our good friend, too.

1. Mr. Smith is ______.

A. Washington D.C.

B. American

C. from American

D. English

2. Mr. Smith teaches ______ very well.

A. English

B. Chinese

C. Japanese

D. French

3. He likes to wear ______.

A. a white shirt

B. black pants

C. white pants

D. A and B

4. He says ______.

A. he lives in Shanghai

B. he speaks a little Chinese

C. he likes to live in Beijing

D. he can teach English well

5. We like ______ very much.

A. him

B. his lessons

C. his English

D. he

由于( )重复出现的概率较小，因而预测的准确性相对较差，也就较难防范。

A．纯风险

B．投机风险

C．自然风险

D．主观风险