游客
题文

Wind is the great maker of waves. There are exceptions (例外), such as the tidal (潮汐的) waves sometimes caused by earthquakes under the sea. But the waves most of us know are caused by winds blowing over the sea .
Now let’s learn some physical (自然地理学的) things about it. A wave has height, from low point to high point . It has length (长度)--the distance from this high point to that of the following wave. The period of the wave means the time it takes for succeeding high points to pass a fixed point. None of these things stays the same--for all depend upon (依靠)the wind, upon the depth (深度) of the water and many other matters.
The water that makes up a wave does not advance with it across the sea. Each drop of water turns around in a little circle with the passing of the wave, but returns very nearly to its original position (原先的位置). And it is lucky that this is so. For if the huge groups of water that make up a wave really moved across the sea, sailing would be impossible. If we want to find the speed of a wave, we may use the following way : Speed =" wavelength" × frequency (频率).
Here, wavelength is the distance between two high points , frequency means the number of cycles per second
What causes waves?

A.Earthquakes and nothing else. B.Only wind.
C.Wind causes most waves. D.Wind causes some waves.

Which of the following is TRUE according to the passage?

A.The water of a wave moves away across the sea.
B.The water of a wave remains almost at the same place.
C.The water of a wave goes with the passing of the wave.
D.The length of a wave means the distance from the top of a wave to the bottom.

The speed of Wave 1 is 100 cm/s, frequency 10. The frequency of Wave 2 is 300, while its speed is twice that of Wave 1. Which of the following is right?

A.The wavelengths of the two are equal.
B.The wavelength of Wave 1 is 10 times longer than that of Wave 2.
C.The wavelength of Wave 2 is longer than that of Wave 1.
D.The wavelength of Wave 1 is longer than that of Wave 2.

Where can we find this passage?

A.music magazine B.fashion magazine C.scientist magazine D.sports magazine
科目 英语   题型 阅读理解   难度 中等
登录免费查看答案和解析
相关试题

Monday……oh, I don’t like Monday because I have to(必须) go back to school after the weekends(周末). Tuesday is not so bad. I usually(通常) play tennis with my friends after school. On Wednesday evening I don’t go out. I stay at home and do my homework. I like Thursday because the next day is Friday. I always go out on Friday---Maybe(或许) to the cinema(电影院). I love the weekends. On Saturdays I stay in bed until(直到) lunchtime, and I sometimes(有时) go to the shops in the afternoon. In the evening we go to a club(俱乐部)--- there are good bands(乐队) every Saturday. Then on Sundays I go to my friend’s house or she comes to mine. I usually visit(拜访) my grandmother for an hour in the afternoon. Then the weekend is over(结束) and it’s Monday……and I feel bad again!
The writer doesn’t like Monday because_______.
A、Monday is the first day of the week.
B、he just spend(度过) a happy weekend.
C、Monday is the first school day of a week,
The writer thinks Tuesday is not so bad because________.
A、he can play tennis with his friends.
B、he has a P.E. class.
C、he is free(空闲).
The writer may go to the movies on_______.
A、Tuesday B、Wednesday C、Friday
What does the writer not do on weekends?
A、Stay in bed until lunchtime.
B、Watch football games on TV.
C、Go to his friend’s house.
From the text, we know that the writer _______.
A、doesn’t like school very much.
B、likes to stay at home.
C、only likes Friday.

Different(不同的) people have different color skin(皮肤). Some have black skin, some have yellow skin, and some have white skin. There is a woman in Alaska. Her skin is an orange color. It is almost(几乎) the color of orange juice.
How does this woman become(变成) orange? She eats a lot of tomatoes, carrots and squash. She eats too(太) many orange things. That’s why she becomes orange.
The woman doesn’t want to be orange. She goes to the doctor(医生). The doctor says, “Don’t eat orange things and eat some green things.” The woman does so , and she isn’t orange any more(不再).
The woman has.
A、only oranges B、yellow skin C、orange skin
The woman is orange because.
A、she eats oranges only
B、she eats too many orange things.
C、she likes that color.
The article(文章) is about.
A、a woman in Alaska
B、tomatoes, carrots and squash
C、different people with different color skin
The woman goes to see the doctor because.
A、she isn’t healthy
B、she needs some green things.
C、she doesn’t like her skin color
The woman does so means (意思是) the woman.
A、eat green things
B、doesn’t eat orange things
C、eats orange and green food

任务型阅读 (每题1分,共5分)
Daniel likes his school (1) very much. He goes to school at seven twenty after breakfast. He has lessonsat eight ten. He's good at Maths. He loves English, too. He eats lunch at school at eleven forty. Hedoes after-school activities at four twenty in the afternoon. He plays football, badminton and volleyball.
Sometimes he swims. Daniel goes home at five o'clock. He eats dinner at six forty. Then at about seven o'clock he watches TV. He likes watching TV because he wants to (2) learn more about the world. At eight he does his homework. He goes to bed at nine o'clock.
对文中(1)处的划线部分提问。
__________________________________________________________
What time does Daniel begin his lessons?
__________________________________________________________
Does Daniel have lunch at home?
__________________________________________________________
把文中(2)处划线词组译成中文。
__________________________________________________________
What does Daniel do at nine o’clock in the evening?
__________________________________________________________

The moon looks bigger than the stars at night. But in fact, it is smaller than any of them. The moon looks big to us, because it is closer to us than any star. The moon goes around the earth. It makes one trip about four weeks. The moon is a round ball and looks beautiful. Don’t you think so?
Now people know quite a lot about the moon. There is no air or water on the moon so there are not any trees or animals, or people on the moon. The moon gets its light from the sun, but some places on the moon are quite dark. Then days on the moon get hotter than boiling(沸腾的) water. The nights get colder than the North Pole(北极) on the earth.
People know quite ______ about the moon now.

A.a few B.a lot C.little D.some

The moon is _______ to the earth than the sun.

A.farther B.far C.close D.closer

The moon makes one trip round the earth in about _______.

A.a week B.four weeks C.a year D.24 hours

There is _______ on the moon.

A.not anything B.no river
C.no air or water D.no hill

The sun _______ to the moon.

A.gets light B.gives light
C.gives air D.gets air

你写英文日记吗?看看Allen都记录了些什么吧!
5/7 Monday
I’m busy this week. The following Sunday is Mother’s Day and there are many activities at school. One of them is PTA Day. It’s on Friday. Mum and Dad are both coming. I’m a little nervous (紧张的). What will Mr. Chang tell them?
5/8 Tuesday
Mr. Wu is our new music teacher. He teaches us Mother, a beautiful song about our love for mothers.
5/9 Wednesday
We practice Mother today. This is the special present for our parents on Friday.
5/10 Thursday
It takes us two hours to decorate(装饰) our classroom for PTA Day. I’m tired. Mum is nervous. It’s the first time for her to meet our teachers. She is always nervous about talking to teachers from her childhood(童年). That’s funny.
What is PTA Day?

A.A day for students to have music classes.
B.A day for parents to meet their children’s teachers at school.
C.A day for teachers to get presents from their students.
D.A day for students to decorate their classrooms.

What’s the date of Mother’s Day?

A.May 14th B.May 13th
C.June 11th D.June 12th

What is the special present for our parents on Friday?

A.A beautiful song about our love for mothers.
B.To decorate our classroom.
C.To meet our teachers.
D.To dance.

What will Allen and his classmates do on Friday?

A.They will decorate their classroom.
B.They will buy presents for their parents.
C.They will sing to thank their parents.
D.They will welcome a new music teacher.

Why does Allen’s mother feel nervous?

A.Allen does not do well at school.
B.She is afraid of talking to teachers.
C.Allen’s f ather is going to school, too.
D.She has to sing a song in front of the class.

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号