题目内容
The earth is about ______ as the moon.
A. as fifty time big
B. fifty times as big
C. as big fifty times
D. fifty as times big
Have you ever wondered?
1. 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 known as the jet (喷射) stream. The jet stream is a very high altitude wind which always blows from the west to the east across the Atlantic. The planes moving at a constant air speed thus go faster in the west-east direction when they are moving with the wind than in the opposite direction.
2. What would happen if the gravity on Earth was suddenly turned off?
Supposing we could magically turn off gravity. Would buildings and other structures (建筑物) float away? What happened would depend on how strongly the things were attached 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 (细绳), it goes around in a circle until you let go of the string. Then it flies off in a straight line. ‘Switching 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. Most things outside would fly off into space.
【小题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. |
| A．send for | B．move quickly |
| C．come out | D．grow quickly |
| 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 |
| A．It takes seven hours to travel from London to New York. |
| B．The earth is moving at a high speed |
| C．Everything on the earth will float away if there’s no gravity. |
| D．Everything not attached to the earth would fly off in a straight line. |
| A．In a research paper. |
| B．In a short story. |
| C．In a travel magazine. |
| D．In a student’s book. |
阅读下列短文，根据其内容完成后面各项任务。
“ Green ” is more than just a colour. It means that you should live to protect the environment . —the water, the land and the air. You can be a green kid by following these steps.
Reduce( 减少）it.
When you use less of something, you do a good thing for the Earth . For example, a shorter shower means you use less water. ①Turn off the water when you are brushing your teeth .
Reuse it .
Many times, even if you don' t need something, someone else might just need it. For example, if your younger sister does' t play with her bear toy, you can give ② it to your neighbour. Try to change books, toys, even clothes with friends .
Enjoy it .
It 's true that pollution is a great problem now, ③ ____________ the Earth is still a beautiful and interesting place to explore (探索). Go for a hike (远足), visit nature centres, and gardens, climb mountains and take a boat in the rivers …. Outdoor activities are good for you. You can also plant trees, collect reusable (可重复使用的）things …. Being a green kid is so easy.
（2013年聊城市中考试题）
根据短文内容，完成下列各题。
1.回答问题：How many steps ( to be a green kid ) are mentioned in the passage ?
_____________________________________________________________________
2. 将文中划线①的句子译成汉语
_____________________________________________________________________
3.文中划线 ②的 “it”指代的是什么？
_______________________________________________________________________.
4. 在文中划线部分③的 空白处填上一个恰当的连词使句子通顺完整，符合逻辑。_____________________________________________________________________
5.从短文中找出可以替换下面所给句子的一句话。）
It is so easy to be a great kid .
___________________________________________________________________。