阅读下列短文，从每小题的三个选项中选出最佳选项。B
    Water comes from the sea, the rain and the tap. Animals, plants and human beings all need water. It is important for our daily (日常的）life. We use water to wash clothes and vegetables. We use water to cook food, make drinks, wash our face and so on. Firemen use water to put out fires. Fanners use water to grow crops. Water is useful. We mustn't waste (浪费）water. We must save water. Turn off the tap when you are brushing your teeth. Don't take a shower too long. Use the same water many times.

如图所示，质量相同的甲、乙两人所用绳子相同，甲拉住绳子悬在空中处于静止状态；乙拉住绷紧绳子的中点把绳子拉断了．则（　　）

依次填写关联词语正确的一项是（    ）

我们共产党人是彻底的唯物主义者，_______落后和不足是客观存在的，我们_______不能采取极端的态度否认它，躲避它，_______要采取积极的态度。

不同膜结构之间互相转化，以“囊泡”方式进行的是（   ）
①核膜和内质网膜②高尔基体膜和细胞膜③内质网膜和高尔基体膜④细胞膜和线粒体膜

补全对话(选择)。

A: Hello. Zhang Yu! ____

B: I'm reading a newspaper.

A: ____

B: Yes. There is a report about Zhou Yang.

A: ____

B: She is a player in China female short track speed skating team. ____

A: When and where was she born?

B: ____

A: Do you want to be a famous person like her when you grow up?

B: Aha, of course. So I have to work hard at school.

A: Well. You're a good student.

B: Thank you!

A. Who is Zhou Yang?

B. What's your hobby?

C. She was born in Jilin Province on June 9^th, 1991.

D. What are you doing now?

E. She won the gold medal in the 2014 Winter Olympic Games in Sochi.

F. How do we succeed in life? Is she from China?

G. Is there anything new on it?