Have you ever wondered?
Why do airplanes take longer to fly west than east?
It can take five hours to go west-east from New York (NY) to London but seven hours to travel east-west from London to NY. The reason for the difference is an atmospheric phenomenon (大氣現(xiàn)象) known as the jet stream (氣流). The jet stream is a very high altitude (=" above" sea level) wind which always blows from the west to the east across the Atlantic. So the planes moving at a constant air speed go faster from the west to the east when they are moving with the wind than in the opposite.
What would happen if the gravity on Earth was suddenly turned off?
Supposing we could magically turn off gravity. Would buildings and other buildings float away? What happened would depend on (依靠) how strongly the things were attached (吸附) to the earth. The earth is moving at quite a speed, moving at over a thousand miles per hour. If you turn something around your head on a string, it goes around in a circle until you let go of the string. Then it flies off in a straight line. ‘Turning off’ gravity would be like letting go of the string. Things not attached to the earth would fly off in a straight line. People in buildings would suddenly shoot upwards at a great speed until they hit the ceiling (=" top" surface of a room). Most things outside would fly off into space.
小題1:What information can we get from the first passage?
A．It is the jet stream that affects how fast airplanes fly.
B．Planes go slower when they are moving with the wind.
C．It takes more time to fly from NY to London than from London to NY.
D．The jet stream always blows from the east to the west across the Atlantic.
小題2:The underlined word “shoot” in the 2nd paragraph means “_________”.
A．send for B．move quicklyC．come out D．grow quickly
小題3:It can be known that without gravity _________.
A．buildings and other structures would float away
B．trees and buildings would not so easily fly off
C．something around your head would not float away
D．everything outside buildings would fly off into space
小題4:Which of the following is not mentioned in the passage?
A．It takes seven hours to travel from London to New York.
B．The earth is moving at a high speed.
C．Things on the earth will float away if there’s no gravity.
D．Things not attached to the earth would fly off in a straight line.
小題5:Where can we read this passage?
A．In a research paper. B．In a short story.
C．In a travel magazine.D．In a student’s book

小題1:A
小題2:B
小題3:B
小題4:C
小題5:D

試題分析：這篇短文主要介紹了飛機(jī)為什么向西面飛比向東面飛花的時(shí)間更長的原因是氣流的方向。還介紹了沒有了地球引力會發(fā)生什么。
小題1:歸納總結(jié)題。根據(jù)短文第一段主要講述了飛機(jī)為什么向西面飛比向東面飛花的時(shí)間更長的原因是氣流的方向，故選A。
小題2:詞意猜測題。A派人去請B快速運(yùn)動C出來D快速生長，根據(jù)第二段People in buildings would suddenly shoot upwards at a great speed until they hit the ceiling (=" top" surface of a room). Most things outside would fly off into space.描述在建筑里的人會突然以一個(gè)巨大的速度向上移動直到他們撞上天花板。很多東西會飛到外太空。故選B
小題3:推理判斷題。根據(jù)第三段What happened would depend on (依靠) how strongly the things were attached (吸附) to the earth.描述發(fā)生了什么將取決于東西連接到地球上有多結(jié)實(shí)。再根據(jù)后面描述可知樹以及建筑不像其他物品那樣容易飛出。故選B
小題4:細(xì)節(jié)理解題。根據(jù)短文描述，只提出了問題：關(guān)掉引力，建筑和其他東西會漂走嗎？沒有提及沒有引力地球上的東西將會漂移。故選C。
小題5:出處猜測題。根據(jù)四個(gè)選項(xiàng)，A研究論文B小故事C旅游雜志D學(xué)生課本，這是一篇科普短文，有可能來自學(xué)生課本，故選D。
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科目：初中英語 來源：不詳 題型：閱讀理解

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科目：初中英語 來源：不詳 題型：閱讀理解

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根據(jù)短文內(nèi)容，選擇最佳答案。
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Spy
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科目：初中英語 來源：不詳 題型：閱讀理解

According to a new survey . Students’ safety has become a big problem. Nearly 50% of students say they are worried about robbery (搶劫) on the way to and from school. Now in some big cities in China, some schools have taught an unusual lesson: self-protection. Students like this lesson because there are no exams or boring classes. And they can learn how to save lives and know how to stop danger before it really happens.
Chen Haoyu, a teacher at Beijing No 25 Middle School gives young students advice on how to deal with danger:
If you are robbed
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If you are in a traffic accident.
If a car hits you. You should remember the car number. If it is a bicycle, try to call your parents before you let the rider go. This is because you don't know how badly you are hurt
If it is raining hard and there is lighting. (閃電)
Don’t stay in high places and stay away from trees.
When there is a fire.
Run away as fast as yon can. Put wet things on your body and try to find an exit. Do not take the lift.
If someone is drowning(溺水)
If you can’t swim, don’t get into the water. Cry out for help.
Remember that danger is never as far away as you think. Take care of yourself at all times!
小題1:Why do students like the self-protection lesson?
①Because there are no tests.
②Because the lessons are boring
③ Because they can learn how to save lives.
④Because they know how to stop danger before it happens.
A．①②B．②③C．①②④D．①③④
小題2:What will you do if a bicycle hurts you?
A．I will remember the bicycle number.
B．I won't let the rider go until I call my parents.
C．I will let the rider go before I call my parents.
D．I will let the rider go because I know how badly I am hurt.
小題3:lf your house is on fire, you must ______ .
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B．run quickly and take the lift
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D．take everything you have and then run away
小題4:There are _____ ways of self-protection mentioned in the passage.
A．3B．4C．5D．6
小題5:The best title for this passage is ________ .
A．How to Keep CalmB．Self-protectionC．An usual lessonD．Danger

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科目：初中英語 來源：不詳 題型：閱讀理解

任務(wù)型閱讀（共5小題，計(jì)10分）閱讀下面短文，根據(jù)短文內(nèi)容，完成下面表格中所缺的信息（共5小題，每小題2分，計(jì)10分）
Do you think it’s hard for you to learn English? Listening to English songs may be a fun way to learn. You might be thinking: Where can I find some online music? Well, there are plenty of places to listen to and download English songs.
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After you pick(挑選) the songs, you can start learning. Learning language from music is fun, so don’t think of it as work. You can listen on your way to school or before you go to sleep. Close your eyes and try to get the meaning of the songs.
小題1:There are _____________________________________ songs to download on Google music.
小題2:We can download English songs from ________________ and ____________________.
小題3:The ways of searching songs are ______________________________________
小題4:When we listen to songs, we can read the lyrics on__________________________________
小題5:The best title of the passage is _______________________________________

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