根據(jù)短文內(nèi)容,從短文后的五個(gè)選項(xiàng)中選出最佳選項(xiàng)填入文中相應(yīng)的位置。
下面文章中有5處(第71—75題)需要添加小標(biāo)題。請(qǐng)從以下選項(xiàng)中選出符合各段意思的小標(biāo)題。
Have you ever rubbed(擦) your hands together when they get cold? Why do we do that? We do that for friction(摩擦). 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!
●________71__________
Soap Water Your hands
●________72__________
(1). Make sure your hands are dry.
(2). Rub your hands together until you feel the heat of your hands.
(3). Now, use soap and water to get your hands very slippery(滑的).
(4). Try to make friction happen while your hands are slippery.
(5). Please write down what has happened.
●________73__________
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.
●________74__________
(1). Friction happens when you stop your fast running bike.
(2). Ancient people made fire by rubbing two pieces of wood together. Friction happened though they didn’t know it.
●_______75_________
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 too hot, touch the tires(輪胎) of the car before and after a short drive to see how much warmer they get from friction.
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閱讀短文,根據(jù)短文內(nèi)容,從短文后的六個(gè)選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。(共8分,每小題2分)
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5 Some think that laughter makes sick people get better.Do you think so,too?
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根據(jù)短文內(nèi)容,從短文后的選項(xiàng)中選出適當(dāng)?shù)倪x項(xiàng)補(bǔ)全短文,將選項(xiàng)的編號(hào)依次填人題后的橫線(xiàn)上。
Do you laugh every day? Most people do. 1 That is a lot of laughter.
In India,there are hundreds of laughter clubs. 2 First they put up their hands above their heads.Then they pretend to laugh.Soon everyone is laughing happily.People say they feel good after laughing together.
Scientists believe that laughter is good for you.Why? For one thing,laughter is good exercise. 3 Scientists say that one hundred laughs equals ten minutes of running.Laughing helps you relax.That’s good for you,too.
Why do we laugh? That is a hard question to answer. 4 They don’t laugh very often when they are alone.Many scientists believe that we use laughter to get on well with other people.Laughter helps us feel part of a group.
5 Some think that laughter makes sick people get better.Do you think so,too?
查看答案和解析>>
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根據(jù)短文內(nèi)容,從短文后的選項(xiàng)中選出適當(dāng)?shù)倪x項(xiàng)補(bǔ)全短文,將選項(xiàng)的編號(hào)依次填人題后的橫線(xiàn)上。
Do you laugh every day? Most people do. 1 That is a lot of laughter.
In India,there are hundreds of laughter clubs. 2 First they put up their hands above their heads.Then they pretend to laugh.Soon everyone is laughing happily.People say they feel good after laughing together.
Scientists believe that laughter is good for you.Why? For one thing,laughter is good exercise. 3 Scientists say that one hundred laughs equals ten minutes of running.Laughing helps you relax.That’s good for you,too.
Why do we laugh? That is a hard question to answer. 4 They don’t laugh very often when they are alone.Many scientists believe that we use laughter to get on well with other people.Laughter helps us feel part of a group.
5 Some think that laughter makes sick people get better.Do you think so,too?
查看答案和解析>>
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