问题 选择题

等质量、等质量分数的两份稀硫酸分别于足量的镁和锌反应,则产生的氢气质量(  )

A.镁反应得到多

B.锌反应得到多

C.一样多

D.无法确定

答案

答案:A

题目分析:足量硫酸,说明金属完全反应.由于都是二价金属,则设金属为M,相对原子质量为x,生成的氢气的质量为y,金属的质量为m.

M+H2SO4=MSO4+H2

x             2

m            y

y=

即反应得到的氢气的质量与金属的相对原子质量成反比,由于镁的相对原子质量小,所以对应生成的氢气就多;

阅读理解

What a miracle! A low-cost Lost in Thailand 《泰囧》has got the best ticket sales. It is true that Lost in Thailand has become the most popular Chinese film of all time.

The ticket sales

The movie Lost in Thailand cost just 30 million yuan to make, but it has earned more than 1.2 billion yuan. It has got more ticket than Painted Skin: The Resurrection, the best-selling movie this summer in China.

The story summary

Lost in Thailand is a comedy. It is a story about three Chinese men who met on their trips to Thailand. The movie has a great plot. Xu Lang is a businessman. He hurried to Thailand to look for his boss because of his special purpose. His competitor, Gao Bo followed him to Thailand, too. Xu Lang met Wang Bao, a pancake maker on his way to Thailand, Three Chinese men had some funny and unexpected experiences in Thailand and the story made people high.

The director and actors

The director of the movie is Xu Zheng. He has been a popular actor for about ten years. He was famous for his role, the Evil Pig in a popular TV serious. Lost in Thailand is his first movie that was directed by Xu Zheng. Xu Zheng is a lead role in the movie. Huang Bo and Wang Baoqiang are China’s top comedians and the both play the important roles in the movie.

根据短文内容,从题中所给的A、B、c、D四个选项中,选择最佳答案。(10分)

小题1:.Painted Skin: The Resurrection was mentioned because _______.

A.the two movies were filmed in Thailand

B.the two movie were directed by Xu Zheng

C.Lost in Thailand was more successful than it

D.Painted Skin: The Resurrection was such a success小题2:.Why did Xu Lang go to Thailand?

A.Because he wanted to find his boss.

B.Because he followed his competitor there.

C.Because he wanted to take a long vacation.

D.Because he wanted to stay away from his competitor.小题3:.The underlined word “unexpected” probably means “_______” in Chinese.

A.可以预知的

B.感到惊讶的

C.意料之中的

D.意想不到的小题4:.We can know the information of the movie EXCEPT ______.

A.its cost

B.its time limit

C.its director

D.its ticket sales小题5:.What’s the main idea of the passage?

A.It’s about why Lost in Thailand sells well.

B.It’s about the relationships between directors and actors.

C.It’s about the background of a popular Chinese comedy.

D.It’s about why Lost in Thailand is popular among visitors.

单项选择题 案例分析题