阅读理解

a．阅读短文，从括号中选择正确的单词填到横线上

　　 1 (By, For, Of) all the things we eat and drink, water is the 2 (most, more, much) important. Not 3 (few, much, many) people understand this but it is true. The human body can go without food for a long time, but two 4 (for, or, and) three days without water usually men will 5 (death, dead, die).

　　Many people don't understand how 6 (little, many, much) water the human body needs to work properly and many people do not drink 7 (few, enough, some), especially in hot days. Most people drink 8 (so, when, before) they are thirsty, but in fact, we often need more water, especially if we have been taking exercises.

　　A man's body is about 70% water. If we do not have 9 (all, enough, some) water, we feel 10 (tired, fine, hard) and may become ill.

b．阅读短文，判断对错

1．Water is the most important of all the things we eat and drink.

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2．All of the people understand how much water the human body needs to work.

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3．We only need water when we are thirsty.

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4．A man's body is about 70% water.

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5．If we don't drink water for 7 days, we can still live.

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完形填空

　　Learning is natural. It begins the 1 we are born. Our first teachers are our families. At home we learn to talk and to 2 and feed ourselves. We learn these and other skills by 3 .

　　Then we go to school. Many teachers teach us 4 to learn and how to learn. And we pass many tests and exams. People say we are educated. Are we really educated? Let's think about the real meaning of 5 . Knowing facts doesn't mean being able to solve problems. Solving problems 6 creativity, not just good memory.

　　What does a good teacher do? Does he give students facts to 7 ? Well, yes, we must sometimes remember facts. But a good teacher 8 how to find answers. He brings us to the 9 of knowledge where we can drink for ourselves. When we are thirsty, we know 10 to go.

　　True learning combines in-take with out-put. We take information into our brains. The we use it, a person who only remembers facts hasn't really learned. Learning takes place on when a person can use what he knows.

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10．

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　　You see,in a plant's stem（茎）there are several hundred “water pipes （管道）”that bring water from soil all the way up to the leaves. When the ground turns dry, it becomes harder and harder for plants to do this.

　　In very hot days, plants have to get any water that it can. Scientist Robert Winter has found out that when plants can get no water, their “water pipes” snap （发出断裂声）. When that happens, the whole plant vibrates （振动） a little.

　　Robert knows that healthy, well-watered plants are quiet. He also knows that many insects （昆虫）prefer attacking dry plants rather than healthy plants. How do the insects know which are healthy plants and which are not? Robert thinks that the insects may hear the plants crying and then they may come to kill it.

(1)There are many “water pipes”_________.

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(2)When plants can, ________, their “water pipes” snap.

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(3)When “water pipes”snap, the whole plant ________.

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阅读理解

阅读下面短文，短文后有五个理解性的题目，在各题所给的(A)、(B)、(C)、(D)四个选项中，选出一个最佳选项，并把答案涂在答题卡里。

　　We all cry for water when we are thirsty. But do you know, in very hot, dry weather, plants also make very low sounds－as if they are crying out for help?

　　You see, in a plant's stem(茎) there are several hundred “water pipes(管道)” that bring water from soil all the way up to the leaves. When the ground turns dry, it becomes harder and harder for plants to do this.

　　In very hot days, plants have to get any water that it can. Scientist Robert Winter has found out that when plants can get no water, their “water pipes” snap(发出断裂声). When that happens, the whole plant vibrates(振动) a little. The snapping pipes make noises ten thousand times more quiet than a whisper(低语).

　　Robert knows that healthy, well-watered plants are quiet. He also knows that many insects(昆虫) prefer attacking dry plants rather than healthy plants. How do the insects know which are healthy plants and which are not? Robert thinks that the insects may hear the plants crying and then they may come to kill.

1．There are many “water pipes” ________.

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2．When plants can ________, their “water pipes” snap.

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3．When “water pipes” snap, the whole plant ________.

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A．keeps quiet

B．vibrates a little

C．gets well

D．makes very loud sounds

4．The snapping pipes make noises ________ times more quiet than a whisper.

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5．Many insects like to attack ________.

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