We’ve talked about snails (蜗牛) and their slow move. But much of the time snails don’t move at all. They are in their shells (壳) —sleeping.

Hot sun will dry out a snail’s body. So at the least sign of hot sun, a snail draws its body into his shell. A snail will die in a heavy rain. So when it rains, a snail does the same thing, too. A snail can sleep for as long as it needs to. It spends all the winter months in its shell, asleep.

In the spring the snail wakes up. Its body, about three inches long, comes out from the shell. When hungry, the snail looks for food. Its eyes, at the end of the top feelers (触角), are very weak. But its sense (感觉) of smell is very strong. It helps the snail to find food and the new greens.

A snail’s mouth is no bigger than the point of a pin (大头针). Yet it has 256,000 teeth! The teeth are very small, and you can’t see them. If you put a snail in a hard paper box, it will eat its way out! And if a snail wears out its teeth, it will grow new ones.

1. A snail _________.

　 A. moves more slowly at night　　B. has thousands of feet

C. doesn’t move at all   　　      D. sleeps much of the time

2. In the sentence “A snail draws its body into its shell”, the word “draw” means _____.

　 A. to make with a pencil     B. to push　　C. to pull      D. to move away

3. From the story, we know _________.

　 A. a snail’s shell is very thin     B. a snail can’t see well

　 C. a snail’s nose is quite short    D. a snail’s body changes in different seasons

4. A snail goes to sleep when _____.

　 A. it feels hungry   B. it is put into a paper box  C. spring is coming   D. it rains heavily

5.Which of the following is wrong?

A. In winter the snail doesn’t eat or move.　　B. A snail doesn’t like living under the sun

C. The snail’s teeth can’t be worn out.       D. The snail’s nose helps to find food.

At the shopping mall, you probably think about spending, not saving. Think about all the lights that keep the mall bright. Think about all the water faucets in the toilet. Think about all the air conditioning in summer. Saving energy is a hot topic for such a big place!

　　Many things at the mall use energy. Electric lights, infrared faucets and air-conditioners need electricity to work. One way to save energy is by keeping lights clean. More and more dust and dirt make the lights less bright. When  malls keep lights clean, they can use fewer lights and keep the area just as bright ,Using fewer lights means using less energy.

You step up to the  water faucet. The water starts to flow. You don't have to touch a thing. Why do malls have such fancy faucets?. The answer is simple. They save water. Sometimes people forget to turn the water off after they wash. Infrared faucets turn themselves off.

The…

1.________is a hot topic for a big mall.

A．To spend money                        B．To save energy

C．To keep the mall bright                   D．To buy things

2.Malls use infrared faucets mainly because________

A．they save water     B．they are fancy      C．they are simple     D．they turn themselves off

3.Which of the following cannot save energy?

A．Using fewer lights.                       B．Using infrared faucets.

C．Using air-conditioners                    D．Keeping lights clean.

4.What will the fourth paragraph probably talk about?

A．How to save water when using infrared faucets in the mall

B．How to save energy when using air-conditioners in the mall

C．How to save money when shopping in the mall.

D．How to spend money when shopping in the mall.

5.The best title for the passage is_________

A．Lights, faucets and air-conditioners

B．Spending less money

C．Energy saving at the mall

D．A hot topic

Most Canadian families love to have holidays 1 summer． Summer is a good season 2 holidays． It is very hot during the months of July and August． Children do not have any classes during these3months．

Some 4 like to stay at home during the holiday． They work in the garden, visit friends, 5 books, or 6 TV． Many families 7 their lunch to a park or somewhere far 8the city． They like to eat where there are many trees or there is a nice lake． If they live near the sea, they often go to the beach． They can fish, swim or enjoy the sun there．

Canada is a large country． Many families travel by 9 or by train to see interesting places． They also travel by plane to a foreign country． Many big cities have many famous buildings, theatres, shops and other places 10travelers．

1.A． for     　　　　　　 B． in      　　　　　　 C． on

2. A． to      　　　　　　 B． of      　　　　　　 C． for

3. A． one      　　　　　　B． two    　　　　　　 C． three

4. A． people   　　　　　　B． peoples  　　　　　　C． man

5.A． see   　　　　　　　 B． watch   　　　　　　C． read

6. A． see    　　　　　　  B． watch   　　　　　　C． look

7. A． takes  　　　　　　  B． take   　　　　　　  C． look

8. A． from   　　　　　　 B． away   　　　　　 C． to

9. A． car      　　　　　　B． a car   　　　　　 C． their car

10. A． for      　　　　　　B． in       　　　　　C． on

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