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When we have small cuts in the skin(皮肤), something strange may happen. The cuts are able to heal(痊愈) themselves in a couple of days. How does this happen? Read on, and you will find out the secret.
Every living thing on the earth is made up of cells(细胞). Cells grow and make new cells. Most cells are very small and we can't see them with our eyes. Different cells have different uses. Our skin cells are special ones. The cells on the outside of our skin are old dead cells. New skin cells are right under the outside. These are the living skin cells. They work for our bodies. They help protect our bodies and heal cuts.
Our bodies make skin cells all the time. As the old cells fall off, new cells grow in the same place. Each person makes about 18 kg of skin cells during his or her life. Outside skin cells fit together closely with no gaps between them. When you cut yourself, you can harm your skin cells. A small cut will not be harmful. Your skin will quickly heal itself by making new skin cells. How do skin cells work? First, the cells near the cut get bigger and move into the gap. Next, these bigger cells meet in the middle. They form a new layer(层) of skin cells. Finally, new cells will grow until the gap disappears. In this way, your skin can grow and get well itself. How amazing the small cells are! Next time you have a cut, don't worry about it. Maybe in a few days, you will be surprised to find it healed.
1.The underlined word “gaps” in the passage means “______” in Chinese.
A．突起 B．条纹 C．缝隙 D．代沟
2.From the passage, we know that cells______.
A．are large and we can see them with our eyes
B．can heal few cuts themselves
C．are in everything on the earth
D．can grow and make new cells
3.Skin cells heal cuts in three steps. ______is the right order.
4.Which of the following is TRUE according to the passage?
A．Each person can make 18 kg of skin cells every day.
B．Different cells have different uses in our bodies.
C．The skin cells have little work to do in the body.
D．Every living thing on the earth is made up of skin cells
5.The best title for this passage should be______.
A．How Skin Cells Heal Cuts
B．The Importance of Skin
C．How to Protect Our Fingers
D．The Importance of Cells
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When we have small cuts in the skin(皮肤), something strange may happen. The cuts are able to heal(痊愈) themselves in a few days. How does this happen? Read on, and you will find out the secret.
Every living thing on the earth is made up of cells(细胞). Cells grow and make new cells. Most cells are very small and we can't see them with our eyes. Different cells have different uses. Our skin cells are special ones. The cells on the outside of our skin are old dead cells. New skin cells are right under the outside. These are the living skin cells. They work for our bodies. They help protect our bodies and heal cuts.
Our bodies make skin cells all the time. As the old cells fall off, new cells grow in the same place. Each person makes about 18 kg of skin cells during his or her life. Outside skin cells fit together closely with no gaps(缝隙) between them. When you cut yourself, you can harm your skin cells. A small cut will not be harmful. Your skin will quickly heal itself by making new skin cells. How do skin cells work? First, the cells near the cut get bigger and move into the gap. Next, these bigger cells meet in the middle. They form a new layer(层) of skin cells. Finally, new cells will grow until the gap disappears. In this way, your skin can grow and get well itself. How amazing the small cells are! Next time you have a cut, don't worry about it. Maybe in a few days, you will be surprised to find it healed.
1. From the passage, we know that cells______.
A. are large and we can see them with our eyes
B. can heal few cuts themselves
C. are in everything on the earth
D. can grow and make new cells
2.Skin cells heal cuts in three steps. ______is the right order.
3. Which of the following is TRUE according to the passage?
A. Each person can make 18 kg of skin cells every day.
B. Different cells have different uses in our bodies.
C. The skin cells have little work to do in the body.
D. Every living thing on the earth is made up of skin cells
4. The best title for this passage should be______.
A. How Skin Cells Heal Cuts B. The Importance of Skin
C. How to Protect Our Fingers D. The Importance of Cells
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We can’t find _____________in the house.
A. something strange B. anything strange
C. strange something D. strange anything
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—When did the classroom have a power cut?
—This morning. While we ______ an English lesson.
A. have B. had C. are having D. were having
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（2017江苏南京）—When did the classroom have a power cut?
—This morning, while we ________ a physics lesson.
A.have had B.were having C.are having D.will have
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（题文）（2017江苏南京）—When did the classroom have a power cut?
—This morning, while we ________ a physics lesson.
A. have had B. were having C. are having D. will have
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When we ____ home last night, we saw a strange object in the sky.
A. drive B. drove C. were driving D. had driven
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We all want our skin(皮肤) to look good in summer. If your skin is clean and healthy，it makes you feel better about yourself. How do you get great skin？Here is some advice.
How to wash your skin?
1.Wash your body all over once a day. Use mild soap(温和洁肤皂) and warm water to wash your body.
2. Wet your skin firstly to help the soap slide(滑动) more easily across your skin and stop you from using too much.
3.Wash your face by using facecloth(脸巾) and soap or cleaning cream(洁面乳)，and then wash with cool water. Twice a day is enough，as too much cleaning can harm your skin.
How to protect your skin against the sun?
1.If you are going to be outside，especially in the sun，you should put on sun cream in summer. Use sun cream about half an hour before going outside.
2.Wear a hat to protect your face. A wide hat is the best，as it will protect your ears and neck as well.
3.Stay in the shade wherever you can.
What else should you do?
1.Proper(适当的) exercise is good for your skin.
2. Remember to drink lots of water — your skin loves it.
3.Eat healthily so that your skin can get what it needs to do its job.
1.You can use ______ water to wash your body.
A. cool B. freezing C. hot D. warm
2.The underlined word ＂harm＂ probably means ＂______＂ in the passage.
A. repair B. smooth C. hurt D. clear
3.If you want to protect your skin against the sun, you should__________.
A. use sun cream about one hour and half before going outside. B. wear a wide hat.
C. stay in the shade when you are tired. D. put on sun cream in autumn
4.To protect our skin in our daily(日常的) life. We can do the following things EXCEPT ______
A. drink a lot of water B. do exercise
C. have some junk food D. wear a hat while going outside
5.Which may be the best title for the passage?
A. Protecting Your Skin B. How to Keep Healthy
C. How to Wash Your Skin D. Use Sun Cream to Protect Your Skin
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Harvey was having his hair cut in a barber shop when a young boy entered the shop. The barber said to Harvey in a very low voice, "This is the silliest kid in the world. Watch while I show it to you." The barber put a dollar bill in one hand and two quarters(25美分) in the other, then called the boy over and asked, "Which do you want, son?" The boy took the quarters and left. "What did I tell you?" said the barber. "That kid never learns!"
Later, when Harvey left, he saw the same young boy coming out of an ice cream store. "Hey, son! May I ask you a question? Why did you take the quarters instead of the dollar bill?" The boy ate his ice cream and replied, "Because the day I take the dollar, the game's over!
1. The barber gave the boy money because he ________.
A. wanted the boy to help him B. loved the boy C. wanted to prove(证明) his words.
2. The boy got ________ from the barber.
A. one dollar B. 50 cents(美分) C. a quarter
3. The sentence “the game's over” here means ________.
A. he can’t play the computer game any longer
B. he can never get money from the barber
C. he can never go to the barber shop
4.We can learn that ________ is the smartest one among the three people in this story.
A. the boy B. the barber C. Harvey
5. We can infer(推断) from the passage that ________.
A. The young boy was the barber’s son
B. Every time the boy got the money, he went to buy an ice cream.
C. The barber thought the boy wasn’t clever at all.
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My little sister saw _____outside. Shall we go and have a look?
A. strange something B. anything strange
C. something strange D. strange anything