题目内容

【题目】青藏高原虽纬度低,但气候寒冷,这是因为

A.受纬度位置影响B.受季风影响

C.受海陆位置影响D.受地形因素影响

【答案】D

【解析】

纬度位置是影响气候的基本因素。一般是纬度越低,气温越高;纬度越高,气温越低。海陆分布改变了气温和降水的地带性分布;由于海洋和陆地的物理性质不同,在强烈的阳光照射下,海洋增温慢,陆地增温快;阳光减弱以后,海洋降温慢而陆地降温快。海洋与陆地表面空气中所含水汽的多少也不同,一般说来,在海洋或近海的地区,气温的日变化和年变化较小,降水比较丰富,降水的季节分配也比较均匀,多形成海洋性气候;不同的地形对气候有不同的影响,在同一纬度地带,地势越高,气温越低,降水在一定高度的范围内,是随高度的升高而增加。高大的山脉可以阻挡气流的运行,山脉的迎风坡和背风坡的气温与降水有明显的差异。

地势对气候的影响,主要表现为随着地势的增高,气温降低。一般情况下,每增高100米,气温约下降0.6℃。青藏高原平均海拔4000米以上,是世界上海拔最高的高原,虽纬度低,但受地形因素的影响,与同纬度其他地区相比较气候寒冷。 故选:D

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【题目】 Paul is a 12- year - old boy from Australia. He has short blond hair, blue eyes and a big nose. He comes to China to study with his parents. He likes to be friends with others. He can speak Chinese well. And everyone in his class likes him, so he is always the center of attention (关注). His best friend is Lucy. Lucy is from Canada. She says Paul is handsome and nice. Jessica is a beautiful girl. She is thirteen years old and she is from the USA. She is tall with big blue eyes. For her, basketball is really interesting. She dreams of being a basketball player of national team(国家队). But her parents want her to be an actress because she has good looks.

Scott is a Chinese boy. He is 13 years old. He has short black hair and black eyes. He is short. He lives with his grandparents in a village because his parents are working in Beijing. He can only see his parents once(一次)a year. He doesn’t like that. He misses his parents very much. To see his parents often, he spends much time studying and he wants to walk out of his village. He is a great boy!

1Where does Paul’s best friend come from?

A.Australia.B.America.C.Canada.D.China.

2Paul and Scott have ________ .

A.brown hairB.blue eyesC.short hairD.big eyes

3What is Jessica interested in?

A.Acting.B.Playing basketball.C.Dancing.D.Making friends.

4We can see that _______ and ________ are of the same age.

A.Paul; JessicaB.Jessica; ScottC.Paul; ScottD.Paul, Jessica; Scott

5Which of the following is NOT true?

A.Lucy thinks Paul is handsome.B.These four students are from different countries.

C.Scott wants to see his parents.D.Jessica’s parents want her to be a basketball player.

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