I heard the bees long before I saw them.
It was a very hot afternoon,and we decided to cool off in the river near my home.As we climbed down a small rocky hill toward the water, my boyfriend John suddenly started to shout,then jumped into the water below. Peter and Mary quickly followed but I was too far away to jump. I was strapped.
I heard a low hum (嗡嗡声), which was growing louder .From a distance,the group of bees looked almost like a cloud of smoke.As it got closer,I realized it was actually thousands of bees flying towards me.
All I could do was cover my face with hands.Crazily I thought that if I sat very still( 安静的 ),the bees would think I was just another rock.
After a few seconds,I knew my plan hadn’t worked.The bees were attacking me. I could hear my friends shouting at me to get down to the pool fast.
But it wasn’t easy.I was in great pain and the only way I could get away was to use my hands to climb down to the rocks.However, I was afraid to do that at first because my face would be unprotected.The noise the bees made was so loud and frightening ,but I had no choice.
I rushed down the rocks and jumped into the pool,but I don’t remember doing it.I was just so happy to be free from the pain. I was safe,and the water felt wonderful.
But we still weren’t out of danger. Every time we tried to climb out of the pool,the bees flew back over our heads.We spent the next three hours in the water, putting our heads under the water from time to time to avoid the bees until they finally lost interest.
【小题1】How many people went swimming that day?

　The students were having their chemistry（化学）class. Miss Li was telling the children what water was like. After that, she asked her students, “What's water ?”No one spoke for a few minutes．Miss Li asked again，“Why don't you answer my question？Didn't I tell you what water is like？”
Just then a boy put up his hand and said，“Miss Li，you told us that water has no color and no smell．But where to find such kind of water？The water in the river behind my house is always black and it has a bad smell．”Most of the children agreed with him．
“I'm sorry，children．”said the teacher，“Our water is getting dirtier and dirtier．That's a problem．
【小题1】The students were having their _______ class．

Have you ever rubbed your hands together when they get cold? Why do we do that? We do that for friction. Friction happens when two things that aren’t very smooth rub together to make heat energy. The faster you rub two things together, the more friction ( and heat) you can make. Let’s discover friction!

WHAT YOU’LL NEED

·Soap ·Water·Your hands!

WHAT TO DO

Make sure your hands are dirty.

Rub your hands together until you feel the heat of your hands.

Now, use soap and water to get your hands very slippery(滑的).

Try to make friction happen while your hands are slippery.

Please write down what has happened.

LET’S TALK!

Friction is an energy that happens when two things rub together. When friction happens, it makes heat! When your hands are slippery, they won’t make very much friction and your hands won’t get so hot.

DID YOU KNOW?

Friction happens when you stop your fast running bike.

Ancient people made fire by rubbing two pieces of wood together. Friction happened though they didn’t know it.

____?___

Friction is everywhere. Have you ever noticed situations where friction is happening? If not, ask your parents to take you out in a car. If it is not hot, touch the tires(轮胎) of the car before and after a short drive to see how much warmer they get from friction.

1. This text is most probably________________________.

A. a science report????????????? ????????????? ????????????? 　 B. a car advertisement

C. a rubbing introduction?????? D. a chemistry programme

2.What does the word “friction” in this text mean in Chinese????????

A.摩擦????????????? ????????????? B. 冷却??????? C. 膨胀????????????? ????????????? ????? D.震动

3.___________ is not an example of friction.

A. Bike riding????????????? B. Car driving??? C. Hands rubbing????????????? ? D.Friction discovering

4.What’s the last column(栏目)?

A. THINK IT OVER!????????????? ????????????? ????????????? ????????????? ?? B. WHAT HAPPENED?

C.EVERYDAY ACTION:????????????? D. WORK WITH PARENTS

The pollution in our country is very serious, which is harmful to our health. If? we don’t take ???

to protect the environment, the earth will be destroyed. The earth is our home. No earth, no people! So we should think of some good ? to solve the environmental problems.

　　?? is one of the problems. But some rubbish can be ?? . So we should ?? the rubbish according to the materials instead of throwing them here and there. We should also ? the waste. For example, we can use ??? sides of the paper or we can bring a basket when going to the supermarket. Waste water shouldn’t be ?? into rivers and lakes directly(直接地). Dirty water may ?? some diseases(疾病).

In a word, ? is supposed to take an action at once. It is our duty to protect the environment and make our world more and more beautiful.

1.A. hair????????????? B. measures????????????? C. sky

2.A. purpose????????????? B. results????????????? C. ways

3.A. Rubbish????????????? B. Air????????????? C. Water

4.A. stored ????????????? B. recycled????????????? C. wasted

5.A. sell????????????? B. rise????????????? C. sort

6.A. reduce????????????? B. make????????????? C. stop

7.A. both????????????? B. neither????????????? C. none

8.A. poured????????????? B. discovered????????????? C. rained

9.A. shut????????????? B. cause????????????? C. prevent

10.A. no one????????????? B. someone????????????? C. everyone