问题 选择题

下面是某学生对课本中图表资料的使用情况,其中不正确的是(     )

A.根据金属活动性顺序表,判断金属能否置换出稀硫酸中的氢

B.根据元素周期表可以判断元素在自然界的含量

C.根据溶解度曲线图,判断某物质在一定温度下的的溶解度

D.根据酸、碱、盐的溶解性表,判断某些复分解反应能否进行

答案

答案:B

A、根据金属活动顺序可以作为金属能否在溶液中发生置换反应的一种判断依据,位于氢前面的金属能置换出盐酸、稀硫酸中的氢,故A正确;

B、根据元素在自然界的含量是通过计算的出来的,所以根据元素周期表不能判断元素在自然界的含量;故B错误;

C、溶解度曲线可以查出某物质在一定温度时的溶解度,所以根据溶解度曲线图能判断某物质在一定温度下的溶解度;故C正确;

D、在化学反应中,生成物中有沉淀或气体或有水生成时,复分解才可以进行,所以根据酸、碱、盐的溶解性表能判断某些复分解反应能否进行;故D正确;

故选B

阅读理解

Playing video games on his iPad in a chair, Justin Bieber looks like any 16-year-old. But when he opens his mouth, you know he’s different – the Canadian teen can really sing.

Do you like listening to the songs of Justin Bieber? In his 3D documentary  , Justin Bieber: Never Say Never, now playing in US theaters, the 16-year-old Canadian sings the song Never Say Never. It’s an encouraging song.

Bieber uploaded a music video to the Internet three years ago, and since then has never looked back. He has sung at the White House, opened for Taylor Swift and appeared on the cover of People magazine, which called him the “world’s biggest pop star”. He has won many honors, the most recent being Best New Artist of the Year at 2010 MTV Video Music Awards.

There are many interesting things going on in Justin Bieber’s life these days. He has a girlfriend, actress and singer Selena Gomez. He just celebrated his 17th birthday. And, he has a new haircut. Bieber gave some of his hair to sell online. One of his fans bought  it for $40,000 (260,000 yuan)! The money will go to protect animals. What would you do with Bieber’s hair? 

小题1:Where is Justin Bieber from ?

A.America

B.Australia

C.Canada

D.Japan小题2:What’s the meaning of the underlined word “uploaded”?

A.下载

B.搜寻

C.上传

D.博客小题3:What’s the name of the song in his 3D documentary?

A. Baby    C. Smile    C. Just a dream    D. Never say never

小题4:What can learn from the passage?

A. Justin Bieber can sing as well as any 16-year-old.

B. He had sung at the White House three times.

C. His new girl friend is a writer.

D. One of his fans bought some of his hair .

单项选择题