问题 单项选择题

事实上,所有的极地冰都是由降雪形成的。特别冷的空气不能保持很多的水蒸气,因此无法产生大量降雪。近年来,两极地区的空气无一例外地都特别冷。 以上信息最有力地支持了下列哪一结论

A.如果极地冰目前确实有所增加、扩大,速度也是非常之慢。

B.如果极地的空气温度大幅度升高,许多极地冰将融化。

C.在过去的几年,极地的降雪一直在继续。

D.极地冰越厚,和它接触的大气越寒冷。

E.在极地,要使雪变成冰,空气必须非常寒冷。

答案

参考答案:A

解析:很冷则没有水蒸气,这样就没有降雪,于是就没有冰。

阅读理解

阅读短文,选择正确答案。

       Xie Qiang is a student in Grade7. Mother's Day is coming. The teacher wants to hold a party in the

classroom and asks him to organize the party. Now he is making the plan.

       First, he will write some invitations to students' mothers. He will ask the mothers to come to the classroom.

The students are going to join the party with their mothers together.

       Second, he will ask his classmates to perform (表演) at the party. Zhang Yanling will sing English songs.

Liu Yanhua will play the piano. Li Bingpeng will tell stories at the party. Wang Xiaolong will play games. 

       Third, Xie Qiang will buy some Coke, juice and some milk for the mothers. He will also ask the students to

prepare some presents for the mothers. They will let their mothers have a good time.

       Fourth, he will ask some mothers to tell some stories and play games with the students. He will also ask

some mothers to tell something interesting to children.

       He hopes mothers will have a lot of fun at the party. The students can't wait for Mother's Day.

1. What is Liu Yanhua going to do at the party? [ ]

A. Sing English songs.

B. Play the piano.

C. Tell stories.

D. Play games.

2. What can't mothers drink at the party? [ ]

A. Coke.

B. Juice.

C. Coffee.

D. Milk.

3. Which grade is Wang Xiaolong in? [ ]

A. Grade5.

B. Grade6.

C. Grade7.

D. Grade8.

4. Who is going to organize the party? [ ]

A. Xie Qiang's mother.

B. Zhang Yanling.

C. Xie Qiang's teacher.

D. Xie Qiang

5. Where does the teacher want to hold the party? [ ]

A. At Xie Qiang's home.

B. In the classroom.

C. In the park.

D. On the playground.

单项选择题