精英家教网 > 初中英语 > 题目详情

As we all know, the ocean moves. But waves breaking on the beach make the ocean fun. When you stand on the shore and look at the waves, it seems like the water is moving towards you. But the water is not really moving forward. The moving you see is wave energy. And wave energy comes from the wind.

Let’s think about how this works. As wave energy passes through the water, the energy makes particles (粒子) of water move up and down. Just give you an example of a wave passing under a basketball. We put a basketball on the sea. When the wind blows, a wave comes from behind the basketball. The basketball moves up to the top with the wave. Then the wave continues and leaves the basketball behind. The basketball looks lower, but it doesn’t move forward. That’s because the wave energy just moves the water which is under the basketball.

   So why can you see a wave knock you down on the shore?When a wave moves toward the shore, the bottom of the wave slows down because it meets the ocean floor. But the top, which is called crest(浪峰), keeps moving. The different action causes the wave to fall over or break onto the shore. If a wave is very large, it carries a lot of energy when it hits the land. As time goes by, waves can break up and carry away the rocks and other things on the shore. Shorelines are changing all the time because of wave action.

1.______ is really moving forward when you look at the wave.

A.Water            B.The basketball      C.Water and wave energy   D.Wave energy

2.Match the sentences with the pictures and the right answer.

(1) The basketball moves up to the top with the wave.

(2) The basketball continues and leaves the basketball behind.

(3) When the wind blows, a wave comes from behind the basketball.

A.a—(2) b—(1) c—(3)                     B.a—(3) b—(1) c—(2)

C.a—(1) b—(3) c—(2)                     D.a—(3) b—(2) c—(1)

3.Which of the following is NOT true according to the passage?

A.Wave energy comes from the water.

B.Large waves carry plenty of energy.

C.Wave action makes shorelines change all the time.

D.The bottom of the wave is easy to slow down.

4.The underlined word “it” ( Paragraph 3) refers to “________”.

A.particles of water   B.the shore          C.the wind          D.the bottom of the wave

5.The main idea of this passage is ______.

A.what makes particles of water move         B.how a basketball moves on the ocean

C.how wave energy causes wave action        D.why a wave can knock you down

 

【答案】

1.D

2.B

3.A

4.D

5.C

【解析】

试题分析:这篇短文主要介绍了波浪的形成原理和其运动特点。

1.根据第一段When you stand on the shore and look at the waves, it seems like the water is moving towards you. But the water is not really moving forward. The moving you see is wave energy.描述,可知选D。

2.根据图片可知风力来自左边,结合短文第二段描述,可知搭配正确的一组是B。

3.根据And wave energy comes from the wind.描述,可知选A。

4.联系前文描述,可知这个代词指的是海浪的下部,故选D。

5.这篇短文主要介绍了波浪能是如何引起波浪作用的。故选C。

考点:关于波浪的科普性说明文阅读

点评:本文中长句较多,一时很难读懂句子含义,注意多读几遍,不要强求非得理解一词一句的含义,能把握文章大意就行。然后带着问题阅读短文,一般就能顺利找出答题依据。对于不能直接找到根据的问题注意联系上下文,根据短文中心总结出正确答案。

 

练习册系列答案
相关习题

科目:初中英语 来源: 题型:

 As we all know, planting trees is good for the environment. Our class will go to the Sun Island tomorrow. As soon as we      there, we’ll begin to plant trees.

A. arrived  B. arrive   C. will arrive

查看答案和解析>>

科目:初中英语 来源: 题型:


Now lots of teenagers like smoking. It's a big problem. Some of them smoke, just for fun and some think smoking looks cool. Others smoke because there are many people around them that smoke.
As we all know, smoking is harmful, especially to students. Some teenagers even steal money so that they can buy cigarettes. Besides, smoking does harm to brains and it can influence studies. Finally, it is bad for health because it can cause diseases.
Therefore(因此), we should protect ourselves from smoking. First, we should learn more about the danger of smoking. Second, we should keep away from people who smoke.
【小题1】Now some teenagers like smoking because_________.
A. smoking is good for them
B. their parents want them to do so
C. they think it is fun
【小题2】From the passage, we know some teenagers steal money in order to _______.
A. buy cigarettes   B. buy books    C. play games
【小题3】Smoking is harmful to_________ .
A. brains              B. legs        C. eyes
【小题4】Which of the following sentences is NOT true?
A. Smoking can cause diseases.
B. Smoking can influence studies.
C. We shouldn't keep away from people who smoke.
【小题5】The writer of the passage wants teenagers________.
A. to smoke           B. not to smoke       C. not to keep away from smoking

查看答案和解析>>

科目:初中英语 来源: 题型:

As we all know, it’s not polite to keep others _________ for a long time.
A.waitB.waitedC.to waitD.waiting

查看答案和解析>>

科目:初中英语 来源:2015届江苏盐城阜宁县羊寨中学度七年级下期期末考试英语卷(解析版) 题型:书面表达

你是学校英文报的小记者李华。请给你校初三学生写一封公开信,就如何保持考前健康提出建议。主要内容如下:

(1)早睡早起,保持充足睡眠;

(2)饮食均衡,少吃垃圾食品;

(3)多做体育运动;

(4)你的其它建议。

Dear students,

As we all know, good health is important for success in the exams,so I’m writing to…

Best wishes and stay healthy.

Yours,

Li Hua

注意:1.词数80左右(信的开头和结尾已给出,不计入词数);

2.不得透露学校、姓名等任何个人信息,否则不予评分。

 

查看答案和解析>>

科目:初中英语 来源:2012-2013学年江苏省扬州市九年级3月练习英语试卷(解析版) 题型:阅读理解

任务型阅读(注意:每空1个单词)。

Future and Today

  It is well known that everyone has his own dream as well as his own future. But do you know what future really is ? I have to say that future is now. That is to say we must treasure every minute now. If we want to have a bright future, we should know how important time is and use it well.

  There is an old English saying: "Gain time, gain life." Then what's time? Time is something that we can't see or touch, but we can feel it passing by. Time is always with us. When we are at table, time passes; when we play, time goes by unnoticeable. We always say "Time is money", but time is even more precious(珍贵的)than money, because when money is spent , we can earn it back. But if time is gone away, it will never return. So, some of us even say time is priceless(无价的).

  We should always remember: future is now. For us students, we should try our best to work hard in order to create a great future of our own. We should make the best use of every hour and be the master of today. We should do everything before us as well as possible. And never put off what can be done today till tomorrow.

  As we all know , "Time and tide wait for no man." If you waste today, you will regret tomorrow. So from now on, work hard. Tomorrow will be better, and your future will be brighter .Remember: "No pains, no gains." Today's hard work is the cause of tomorrow's harvest.

                     Title: Future and Today

1.  

Supporting details

Future is now.

Everyone has his own dream as well as his own future. If we want to have a bright future, we should know the 2.    of time and make every minute3.      .

4.    is priceless.

Time is money, but time is even more5.   than money, because when money is spent , we can earn it back. But 6.    time will return no more.

Be7.    of today

Today’s hard work 8.   to tomorrow’s harvest. As students, we should never9.   what can be done today till tomorrow and we should try our 10.   to do everything well.

 

 

查看答案和解析>>

同步练习册答案