从方框中选择恰当的句子完成对话，其中有两个多余项。

Sally and Li Ming are talking about making the delicious chicken.

 L: The chicken tastes great.

S:1.　    　　    　    　　          

L: Could you tell me how to cook it? I want to have a try.

 S: Of course. 2.　    　　          

L:3.　    　　       

S: Next, fill the chicken with many herbs, and put the chicken into the oven.

L: And then?

S:4.　    　　              

L: That’s a long time.

 S: Yeah. Finally when the chicken is ready, put it on the table and then cut it into slices.

 L: Thanks for your recipe.

S:5.　    　　    　　    　

A. You should cook the chicken in the oven for several hours.

B. Thanks for saying so.

C. What can I do for you?

D. My pleasure.

E. First, you need to clean the chicken.

F. I’m sorry. I don’t like it.

G. What’s the next?

Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries slowly.

　 You probably know how to ride a bike safely. Now learn to use a computer safely.

Your eyes

　 Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters from the screen. Remember to look away from it sometimes. This gives your eyes a rest.

　 When you use a computer, the window should 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 both 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, follow these three rules: 1) Rest your wrists on something. 2) Keep your elbows (肘部） at the same height as the keyboard. 3) Stop something 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 all be in front of your eyes. Your forearms（前臂）, wrists, hands and the upper（上部） 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 exercise your arms, legs and necks.

　 Enjoy your computer, but use it safely.

1.A computer screen may injure your eyes if __________.

A．you sit 60 centimeters away

B．you remember to look away

C．your eyes are too close to it

D．the window is on your left or your right

2.Hand and wrist injuries are caused when you _________.

A．get plenty of exercise

B．move in the same way again and again

C．rest your wrists on something

D．keep your elbows as high as the keyboard

3.Your eyes and hands will be safe if __________.

A．you work near a window

B．you often take a rest from working

C．you use a keyboard for a long time

D．the window is behind you

4.It is good for your back and neck if you sit __________.

A．in the right way

B．for many hours

C．with the screen below your eyes

D．with your back leaning forward

5.What would be the best title for the passage?

A．How to protect your eyes

B．How to protect your hands and wrists

C．How to use a computer safely

D．How to protect your back

　 I heard a story about a famous scientist who had made several very important achievements.What made him 　41 from others?

　 He said it all came from 　42 that happened when he was two years old. He tried to 43 a bottle of milk away from the fridge, but the slippery(光滑的) bottle fell, spilling its milk all over the 　44 floor.

　 When his mother came in, 45 shouting at him, she said, “Robert, what a great mess(一团糟) you have made! I have never seen such a big puddle(水坑) of milk. Would you like to get down and play in the milk for a few minutes 　46 we clean it up?”

　 Indeed, he did. After a few minutes, his mother said, “Robert, when you make a mess like this, you have to clean it up at last. So, 　47 would you like to do that? We would use a towel or a mop. Which do you prefer?” He chose the towel and together they cleaned up the milk.

　 His mother then said, “We had a failed 48 in how to carry a big milk bottle with two small hands in the kitchen. Let’s go out and fill the bottle with water and see if you can 49 a way to carry it without dropping it.” The little boy learned that if he held the bottle at the top near the lip(杯口) with both hands, he could carry it without dropping it.

　 This scientist then said that it was at that moment that he knew he didn’t need to be afraid to 50 .So, what have you learnt from the story?

41. A. serious　　 　　 B. similar　　　　　　 C. different　　　　 D. important

42. A. an experience　　 B. advice　　　　　　 C. a promise　　　　 D. an idea

43. A. pass　　　　　　 B. bring　　　　　　 C. drink　　　　　　 D. take

44. A. kitchen　　　　 B. bedroom　　 　　 C. bathroom　　　　 D. living room

45. A. from　　　　　 B. with　　　　　　　 C. because of　　　 D. instead of

46. A. after　　　　　　 B. before　　　　　　 C. as soon as　　　　 D. since

47. A. when　　　　　 B. what　　　　　　 C. how　　　 　　　D. why

48. A. experiment　　　 B. condition　　　　 C. survey　　　　　 D. research

49. A. look　　　　　　 B. discover　　　　　 C. recognize　　　 D. develop

50. A. clean the floor　　 B. spill milk　　　　 C. make mistakes　　 D. realize mistakes

–How many students are there in the classroom?

-__________. They are all in the lab.

A. Some　　　　 B. None　　　　　 C. All　　　　　 D. Neither