Canyouplaythepiano?[ ] A.Yes,Ido. B.Yes,

“没有同青春的丧失同样重大的丧失”。这句名言告诉了我们[ ]

①青春的丧失是人生的最大丧失      

②青春的丧失是微不足道的

③青春是短暂的，她一去是不复还的

④要珍惜青春

A、①③④          

B、①②④       

C、②③④       

D、①②③

阅读理解。

     Earth Day is birthday! It is a special day that celebrates the earth. Earth Day was born on April 22, 1970,

in San Francisco, California. Every year, over 100 different countries join together in the celebration of Earth

Day. It is the largest, most celebrated environmental event around the world. On Earth Day, we remember

nature and learn ways to protect our environment.

     You can do lots of good things for the earth. Here are some ideas to keep in mind.

     *Recycle cans, bottles, and paper. Save them at home and at school, and help your family recycle them.

     *Ride your bike or walk to school to keep the air clean.

     *Use both sides of your paper at school and at home.

     *Turn off the TV when you've finished watching it.

     *Don't leave the water running while you brush your teeth.

     *Turn off the lights when you leave the room.

     And remember: Don't ever think you're not important to our earth. You are!

1. When is Earth Day?

A. On April 22.

B. On April 23.

C. On May 22.

D. We don't know.

2. How many ideas are mentioned to help save electricity?

A. One.

B. Two.

C. Three.

D. Four.

3. What is Earth Day about?

A. Cars.

B. Lights.

C. Paper.

D. Environment.

4. Which of the following is not talked about in the passage?

A. How to save water.

B. How to keep the air clean.

C. How to keep the water clean.

D. How to recycle something.

5. From the last sentence, we know that _______.

A. everyone should do good things to the earth

B. everyone is necessary in the world

C. you should remember Earth Day

D. Earth Day is the most important day

野营房搬迁时，房内严禁放置（）物品。

A、化学

B、易燃易爆

C、化验仪器

D、易碎

下列现象中，是由于分子做无规则运动而发生的是（　　）

A．清晨，看到雾在运动

B．扫地时，灰尘在空中飘动

C．用木棍搅拌水坑中的清水，水变浑浊

D．将一滴红色钢笔水，滴在一杯清水中（未搅动），过一会儿，整杯水变红

对股四头肌肌力检查，膝关节可伸直抬高10cm，但不能对抗阻力，肌力为几级()

A．1级

B．2级

C．3级

D．4级

E．5级