-I’m tired out these days.--Well, you’d better keep a between work and play.A. promise B. diary C. balance D. secret 题目和参考答案——青夏教育精英家教网—

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—I’m tired out these days.

--Well, you’d better keep a _____ between work and play.

A. promise B. diary C. balance D. secret

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______ Lily ______ Lucy may go with you because one of them must stay at home.

A.Not only ... but also B.Neither ... nor

C.Both ... and D.Either ... or

It is August 2050. Mrs Peng and Mr Yu are writing about hotels and houses on their posts.

The Hotel Whale

The Hotel Whale is built (A) 在水下. It is in the shape of a whale. This hotel has 50 bedrooms, a cafe and a shopping centre.

Mrs Peng: “When we were staying at the hotel recently, my children watched the fish outside their bedroom window. (B) They were never bored.”

Forever Green Houses

These houses are both “green” and “smart”. There is glass outside the houses. Heat is held under the glass and is then used as energy for (C) each house. In the bathroom, your medicine cupboard is connected to your doctor’s computer. In the kitchen, your smart fridge tells the supermarket’s computer when you (D) need more food.

Mr Yu: “When we were living in our old house, we were using more energy. I would certainly recommend Forever Green Houses to my friends. (E) They will satisfy everyone.”

1.将文中划线部分(A)译成英语：______

2.文中划线部分(B)指代的是：______

3.写出文中划线部分(C)和(D)的同义词或近义词：_____ ______

4.将文中划线部分(E)改写为:Everyone will ______ ______ with them.

5.在文中找出两个描述未来房屋的形容词：______ ______

–Mike, shall we watch a cartoon after school?

--________Let’s watch Superman.

A. Good luck! B. Never mind.

C. Good idea! D. Don’t worry.

—Does your school hold the raising of the national flag every Monday morning?

---Yes, it rains heavily.

A. if B. since

C. because D. unless

Let’s try doing the following experiment.

What to do：

Use string to hang a paper clip or other small object at about chest（胸部）level.

Pick up a stick，such as a broom handle. Take three or four steps away from the paper clip.

Now close one eye and walk toward the paper clip. Try to touch it with the tip of the stick. If you miss，try again，still keeping one eye closed. Now try it with both eyes open and see if it’s easier to do.

How it works：

In the experiment，you have to judge how far away the paper clip is. Your brain has several ways of doing this.

One simple way depends on how much your eye has to focus（聚焦）itself. Using only one eye，most people will find it difficult to touch the paper clip on the first try，but the brain still gets some information about distance—though not much.

Your brain can judge distance much better when you look at something with both eyes. In fact，your brain has more than one way to use both eyes in judging distance. For example，to see anything clearly，you have to make both of your eyes point at the object. When you look at a nearby object，your eyes turn inward. You can feel this happening if you look at the tip of your finger and move your finger toward your nose.

Your brain gets information from the eyes about how much they are pointing toward each other. Using that information，the brain can tell how far away any object is，whether it is a basketball or a paper clip.

1.How many materials do we need at least to do the experiment?

A.Two B.Three C.Four D.Five

2.The passage is mainly about that with eyes our brain can judge .

A.how big an object is

B.how high an object is

C.how far away an object is

D.how much information an object is

3.Which of the following is true according to the passage?

A.Our brain judges distance in one way when we use both eyes.

B.Our brain cannot judge the distance of a small object but a big one.

C.How much our eyes focus helps our brain judge the size of an object.

D.How much our eyes focus helps our brain judge the distance of an object.

4.From the experiment we can infer（推断） .

A.with one eye we can see an object as clearly as we use two eyes

B.our eyes turn towards the inside when we look at an object very near

C.within 3 or 4 steps，the nearer an object is，the more clearly we can see it

D.our brain can hardly get any information about distance when we use one eye

_________ dangerous it is for a child to swim alone in a river!

A. What B. What a C. How

—How is your grandma？

—She’s fine. She used to______ TV at home after supper. But now she is used to going out for a walk.

A. watch B. watching C. watched D. watches

---Why don’t you buy the bike,Mary?

----It's too expensive.I can't ________ it.

A. sell B. lend C. keep D. afford

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