( ) You must look left and right.——青夏教育精英家教网—

( ) You must look left and right. 【查看更多】

_________ you cross the street, you must look left and right.

A. When　　　　B. After　　　　 C.Before　　 D. If

When you c　　　 the road, you must look left and right.

Computers can injure (伤害) you. Most other injuries happen suddenly. For example, if you fall over a bike and break your arms, it happens very . But computer injuries happen slowly. You probably know how to ride a bike safely. Now learn to use a computer safely.

Your eyes light can injure your eyes, never sit too close to a computer screen. Your eyes should be 50centimeters（厘米）on the screen. remember to look away from it. This gives your eyes a rest. When you use a computer, the window be on your left or your right. If it is behind you, the light will reflect on（反射）the screen. If the window is in front of you, the sun and the screen will shine into your eyes.

Your hands and wrists(手腕)

Hand and wrist injuries can happen because the hands and wrists are moved in the same way. Hundreds of times. If you use a keyboard for a long time, these three rules: 1）Rest your wrists on something. 2）Keep your elbows（肘）at the same height as the keyboard. 3）Stop sometimes and exercise your hands, wrists and fingers in a different way.

Your back

Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel（平行）to the floor. If you are sitting for a long time, get up every 30 minutes and your arms, legs and neck. your computer, but use it safely.

1.A. much quickly B. faster C. slowly D. quickly

2.A. Too many B. Too much C. Much too D. Many more

3.A. so B. because C. but D. when

4.A. at last B. at most C. at least D. less than

5.A. Sometime B. Some time C. Some times D. Sometimes

6.A. can B. may C. must D. should

7.A. both B. never C. all D. neither

8.A. follow B. work C. copy D. write

9.A. need B. exercise C. walk D. shake

10.A. Enjoy B. Watch C. Protect D. Keep

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阅读理解。

No one was left in the museum now,and John was walking round to see if everything was all right.
Suddenly he saw a beautiful painting lying on the floor. John picked it up and gave it to the director (馆长)
of the museum.
The director called several museums to check and see if it was a stolen painting,but no one claimed
(认领) it.So the director decided to hang it in the museum. All the experts (专家) came to look at the
painting. Each one said it was beautiful and had very deep meaning. The director was proud (自豪) to
have such a painting in his museum and congratulated John on his discovery (发现). Some weeks later
a woman and her little son came to the museum. While they were looking at the new painting,the little
boy began to cry. The director went over and asked him. "Why are you crying?" The child pointed to
the painting and said, "That's my painting on the wall and I want it back." "Yes," said his mother, "he left
it on the floor a few weeks ago. If you look carefully,you can see the name on the painting."

1. John was perhaps .

[ ]

A. a painter
B. an expert on painting
C. a visitor to the museum
D. a man working in the museum

2. John found the painting .

[ ]

A. before the museum opened
B. after the museum was closed
C. during his visit to the museum
D. while he was enjoying his walk

3. The boy began to cry before the painting because .

[ ]

A. he was afraid of it
B. he thought it was his painting
C. he wanted to have the painting back
D. Both B and C

4. After the director heard what the woman and the boy said, he must be very .

[ ]

A. angry
B. afraid
C. proud
D. surprised

5. All the experts thought the painting good because .

[ ]

A. it was really very beautiful
B. it had very deep meaning
C. none of them looked carefully enough
D. they examined it very carefully

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阅读理解

　　No one was left in the museum now, and John was walking round to see if everything was all right．Suddenly he saw a beautiful painting lying on the floor．John picked up and gave it to the director(馆长)of the museum．

　　The director called several museums to check and see if it was a stolen painting, but no one claimed it．So the director decided to hang it in the museum．All the experts came to look at the painting．Each one said it was beautiful and had very deep meaning．The director was proud to have such a paint-ing in his museum and congratulated John on his discovery．

　　Some weeks later, a woman and her little som came to the museum．Wqhile they were looking at the mew painting, the little boy began to cry．The director went over and asked him．

　　“Why are you crying?”

　　The child pointed to the painting and said,“That's my painting on the wall and I want it back．”

　　“Yes, said his mother,”“He lift it on the floor a few weeks ago．If you look carefully, you can see the name on the painting．”

(1)

John was perhaps ________．
[　　]
A．	a painter
B．	an expert on painting
C．	a visitor to the museum
D．	a man working in the museum

(2)

John found the painting ________．
[　　]
A．	before the museum opened
B．	after the museum was closed
C．	during his visit to the museum
D．	while he was enjoying his walk

(3)

The boy began to cry before the painting because ________．
[　　]
A．	he was afraid of it
B．	he wanted to have the painting back
C．	he thought it was his painting
D．	both B and C

(4)

After the director heard what the woman and the boy said, he must be ________．
[　　]
A．	angry
B．	afraid
C．	proud
D．	surprised

(5)

All the experts thought the painting good because ________．
[　　]
A．	it was made by a famous boy
B．	none of them looked carefully enough
C．	it was beautiful and meaningful
D．	they examined it very carefully

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