我国在南、北极地区分别建了长城站、中山站和黄河站（78.55．N、

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问题选择题

我国在南、北极地区分别建了长城站、中山站和黄河站（78.55．N、11.56～E），它们（　　）

A．都位于东半球

B．都位于西半球

C．都在极圈以内

D．年均温都在O℃以下

答案

黄河站和中山站属于东半球，长城站属于西半球．可排除AB选项；长城站不在极圈内，又可排除C选项；故ABC不符合题意．

故选：D．

填空题

根据句意，用所给动词的适当形式填空。

1. It is a fine day. The sun _________ (shine) brightly.

2. They _________ (visit) the Science Museum next Sunday.

3. Mr Brown _________ (live) in Beijing since he came to China.

4. Mr Wang _________ (teach) us English two years ago.

5. The Smiths __________ ( watch) TV at this time last night.

6. We _________ (learn) about ten English songs by the end of last term.

7. Father said that he _________ (buy) a new bike for me the next Friday.

8. Bill isn't here. He _________ (chat) with his friends in the classroom.

9. The teacher said that the moon _________ (go) round the earth.

10. The Young Pioneers will go to the zoo if it _________ (not rain) this Sunday.

填空题

遗传咨询又叫__________，是咨询医生以__________形式解答咨询者或亲属等提出的各种__________问题。