问题 问答题

化学与生活有着密切的联系.在①二氧化碳、②维生素C、③塑料、④活性炭四种物质中,选择正确物质的序号填到横线上:(1)能促进入体生长发育,增强人体对疾病抵抗力的是______;

(2)人们在进入干涸深井前必须做灯火实验,这是因为深井中可能积存有大量的______;

(3)可用于除去冰箱中异味的是______;

(4)属于三大有机合成材料之一的是______.

答案

(1)维生素能促进入体生长发育,增强人体对疾病抵抗力;

(2)不支持呼吸的二氧化碳密度大于空气的密度,所以会积存在深井中,所以人们在进入干涸深井前必须做灯火实验;

(3)活性炭可以吸附色素和异味;

(4)塑料、合成纤维、合成橡胶是三大合成材料.

故答案为:(1)②(2)①(3)④(4)③.

阅读理解

Joe, an outgoing girl, is from a rich family. Therefore she can afford almost everything. But Joe’s parents are too busy to spend enough time with her, which makes Joe more than lonely. So, she always goes to WeChat. On WeChat, she can do a lot of things like buying things, reading articles, and making friends with those she either knows or not.

She uses the name Linda on WeChat and has made a lot of friends there. Last year Joe made a foreign friend on WeChat. Her name was Catherine and she lived in Sydney. Catherine once sent a picture of “herself”: a tall, good-looking young woman with big eyes. Catherine and Joe were both interested in rock music and modern dance. So, they liked each other very much.

When Joe’s father told her that he was meeting a client in Sydney this summer, she went with him to give Catherine a surprise for her birthday. When Joe came to Catherine’s house in Sydney, she found that her foreign “girlfriend” was a ten-year-old boy named Jim! What a surprise!

小题1:Joe spends time on WeChat to          .

A.make friends

B.kill time

C.read articles

D.buy things小题2:What is the real name of Joe’s “girlfriend”?

A.Catherine

B.Joe

C.Jim

D.Linda小题3:From this article, we can say          .

A.Everyone uses his real name on WeChat

B.On WeChat, we can only talk with Chinese people.

C.On WeChat, we can talk with Chinese people in Australia.

D.Joe’s father went to Sydney to meet Joe’s friend Catherine.小题4:What’s the best title of the passage?

A.A Sad Girl

B.A Real Surprise

C.A Special Foreigner

D.A Boy Called Jim

单项选择题 A3/A4型题