题目
题型：不详难度：来源：
All the animals and plants need air. Living things can’t live without air. We can live without food or water for a few days, but we can not live for more than a few minutes without air. We breathe in air. When we are walking or running, we need more air. When we are asleep, we need less air.
We live in air, but we can’t see it. We can only feel it. We can feel it when it is moving. Moving air is called wind. How can we make air move? Here is one way. Hold and open a book in you hand in front of your face. Close it quickly! What you feel is the air.
小题1:_________ need air.
| A．Some of the animals | B．All the things |
| C．Some of the plants | D．All the animals and plants |
| A．without air | B．without food or water |
| C．without food or air | D．without air or water |
| A．less | B．no | C．most | D．a lot of |
| A．Sometimes we don’t live in air. |
| B．Air is not around us when we go to bed. |
| C．We can live happily without air. |
| D．We need more air when we are working or running. |
| A．look | B．see | C．get | D．feel |
答案
小题1:D
小题2:B
小题3:A
小题4:D
小题5:B
解析
试题分析：空气是我们所必需的东西，人可以不喝水、不吃饭，但决不能没有空气。我们看不见空气，但是它却确确实实存在在我们身边。
小题1:细节理解题。由“All the animals and plants need air.”可知所有生物都需要空气。故选D。
小题2:细节理解题。由“We can live without food or water for a few days,”可知没有水和食物我们还能活几天 。 故选B。
小题3:细节理解题。 由“When we are asleep, we need less air.”可知睡觉的时候需要的空气较少。 故选A。
小题4:细节理解题。 由“When we are walking or running, we need more air. ”可知我们走路或跑步的时候我们需要更多的空气。 故选D。
小题5:细节理解题。 由“We live in air, but we can’t see it.”可知我们看不见空气。 故选B。
核心考点
试题【Air is always around us. It is around us when we walk and play. From the time we】；主要考察你对科普环保类等知识点的理解。[详细]
举一反三
What do they eat?
Scientists don’t have many choices on what they eat. About 60% their food is frozen food. It is easy to heat﹙加热﹚。Meat is common on the menu, while vegetables are not usual. Fresh vegetables are hard to grow in the cold weather. Therefore, people often eat dried and canned vegetables.
How do they sleep?
In Antarctica, summer lasts from November to March. During this time, Antarctica faces the sun and gets sunlight 24 hours of the day. In order to get some sleep,scientists cover the window with black cloth to make “night”.
How do they work?
People can wear warm clothes to be against the cold weather, but they can do little with the strong wind. Sometimes, the wind is even stronger than a typhoon. It can easily blow people away.
So there are ropes﹙绳索﹚that connect some research stations. People can hold these ropes to keep balance in strong winds.
How do they keep in touch with others?
There are no cables or Internet on the frozen continent. So mobiles and computers don’t work there. Scientists usually use two-way radios to communicate at work. If they want to say hello to family and friends, they can use the satellite phones.
小题1:What do scientists do in Antarctica?
| A．They mostly study on the animals and plants there. |
| B．They mostly find resources and study climate change and sea biology. |
| C．They mostly find different kinds of lives under the ice and study them. |
| D．They mostly study on the ice and geography. |
| A．Fresh vegetables |
| B．Green vegetables only |
| C．Dried and canned vegetables |
| D．They go down the ice to work. |
| A．They work all day long. |
| B．They find a way to make “night”. |
| C．They stop working on those days. |
| D．They go down the ice to work. |
| A．They use ropes to help themselves. |
| B．They just stay in the houses. |
| C．They use cars and ships to help. |
| D．They don’t think the wind brings trouble. |
| A．Mobile phones | B．Tow-way radios | C．Satellite phones | D．Iphones and Ipods. |
When Captain James Cook traveled around Antarctica in the 1770s by ship, he found no one living there. Today, a few scientists work in Antarctica, but they only spend a short time there.
Many scientists are studying the ozone layer, which is getting thinner and thinner worldwide. The biggest “hole” is above Antarctica, and weather there is getting warmer. Scientists think that this cold and lonely place can teach us a lot about the earth and how to keep the earth safe.
小题1:When did Captain James Cook travel around Antarctica?
| A．In the 1670s. | B．In the 1760s. | C．In the 1770s. | D．In the 1780s. |
| A．冻土层 | B．大气层 | C．臭氧层 | D．高压层 |
| A．Two. | B．Three. | C．Four. | D．Five. |
| A．Antarctica is much bigger than Australia in size. |
| B．Scientists spend a long time in Antarctica. |
| C．There is no plant growing in Antarctica. |
| D．In winter, it’s dark for about 70 days in Antarctica. |
| A．Because there are more and more people living there. |
| B．Because the ozone layer is being destroyed. |
| C．Because the sun shines a long time every day there. |
| D．Because the weather in other places is getting warmer. |
Many animals try to look bigger than they are to stay alive. Some animals can make other animals think they are very big. If they look very big, animals that are looking for food will run away. Bears can walk on two legs. They look very, very scary(可怕的). Some animals will run away from them.
Many animals try to stay around other animals. This helps them stay alive. Zebras stay close together so that they can help each other look out of danger. Seeing many stripes(条纹) at once can also confuse(使混乱) animals that want to eat them. Some birds stay in a circle, each toward a different direction. In this way they can also help each other stay alive by looking around for animals that may want to eat one of them.
小题1:Animals have ways to stay alive. Which animal try to look bigger than they are to stay alive in the passage?
| A．Zebras. | B．Chameleons. | C．Birds. | D．Bears. |
| A．Because they like to play hide-and-seek. |
| B．Because they are shy. |
| C．Because they want to catch other. |
| D．Because they want to protect themselves. |
| A．They change colors. | B．They change shapes. |
| C．They hide in snow. | D．They hide in leaves. |
| A．Become good friends. | B．Talk to each other. |
| C．Help each other look out for danger. | D．Eat and play together. |
| A．They want other animals to run away from them. |
| B．They want other animals to follow them. |
| C．They want other animals to see them. |
| D．They want other animals to like them. |
On Earth Day , some people listen to speeches about the environment . Others help clean up their offices or save water and electricity at home .Your parents may even decide to take a day off from driving their cars .
The idea for Earth Day came from a U.S. Senator(参议员) . He was worried about pollution and the health of plants and animals . And the idea quickly caught on (流行起来) . In 1970 , the first Earth Day was celebrated . More than 20 million people in cities all over the U.S. took part in it .Since then, Earth Day has been used to educate people about their roles in taking care of our planet .
Now , Earth Day has become a worldwide celebration. In 1990, two hundred million people from 140 countries took part in clean-ups , tree planting and other environmental events on Earth Day .
小题1:Earth Day is a special day to learn about our planet and .
| A．how to pay attention to the earth |
| B．how to learn English |
| C．how to go to the moon |
| D．how to make use of time |
| A．go shopping |
| B．save water and electricity at home |
| C．listen to music |
| D．drive our cars |
| A．farmer | B．teacher | C．scientist | D．senator |
A. 1990, the U.S.A. B. 1970, Beijing
C. 1970, America D. 1990, America
小题5:Why has Earth Day become a worldwide celebration ? Because __________.
| A．Earth Day is on Sundays . |
| B．we can sing songs on Earth Day |
| C．there are so many people on Earth Day |
| D．Earth Day can teach people how to take care of our planet |
The corner started last year. At first, there were only__ students because many were ____to speak English. After several weeks, more and more students came here. At first, some students just _____to the other students. I was one of them. I was afraid to speak English. I thought someone would ______me, but I wanted to speak. I always spoke English in my heart. My teacher went on saying, “Don’t be afraid. Open your mouth.” I tried and tried to open my mouth. At last, I said, “Hello!” to the teacher. The teacher was very ____. She said “Hello!” to me at once. From ___on, I began to speak English. I work hard at English and I try my best _more. I learn __my teacher and my classmates at the corner. Now I can speak a little English. Every Sunday morning, I come to the corner ___.
It’s a good ___ to speak English. Please join us.
| 小题1: |
|
| 小题2: |
|
| 小题3: |
|
| 小题4: |
|
| 小题5: |
|
| 小题6: |
|
| 小题7: |
|
| 小题8: |
|
| 小题9: |
|
| 小题10: |
|
最新试题
- 1如图，四边形ABCD为平行四边形，蚂蚁甲沿A-B-C从A到C，蚂蚁乙沿B-C-D从B到D，两只蚂蚁速度相同且同时出发，则
- 2（8分）含有1mol HNO3的稀硝酸溶液与铁粉反应，所得氧化产物a、b的物质的量与加入铁粉物质的量关系如图所示（其中p
- 3西藏蕴藏较丰富，且属于可再生的新能源是 A．水能、太阳能B．太阳能、地热能
- 4读西北地区和青藏地区图，回答下列问题（1）将图2所表示的山脉名称填写在下列横线上：1______ 2____
- 5已知∠1与∠2是对顶角，∠1与∠3是邻补角，则∠2+∠3=（ ）°。
- 6如图，加工一种轴，直径在299.5毫米到300.2毫米之间的产品都是合格品，在生产图纸上通常用φ300﹣0.5+0.2来
- 7物体A以速度v=3t2+1在一直线上运动，在此直线上与物体A出发的同时，物体B在物体A的正前方5m处以v=10t的速度与
- 8第16届亚运会于2010年11月12日至27日在中国广州进行，回答各题。小题1:下面的气候类型图中符合广州气候特点的是
- 9下列各组数中，互为相反数的是 [ ]A．-2与∣-2∣B．（-2）2与4C．1与（-1）2D．-2与
- 10某课外活动小组设计了如图所示的装置，调节滑动变阻器，控制电流强度适中的情况下用其进行缓慢电解NaCl溶液及相关实验（此时
热门考点
- 1先化简，再求值：，其中．
- 2西周的都城在今陕西西安西，历史上叫[ ]A.镐 B.洛邑
- 3根据下面的实验装置图回答问题：（1）指出图中标有数字的仪器名称：①______，②______．（2）实验室加热高锰酸钾
- 4下图是北半球中纬度某地区天气系统图，读图，回答问题。小题1:下列叙述正确的是A．图中气压中心C数值小于1020B．图中B
- 5如图，已知E、F是□ABCD对角线AC上的两点，且 BE⊥AC，DF⊥AC. (1)求证：△ABE≌△CDF；(
- 6记函数f（x）=的定义域为A，g（x）=lg[（x-a-1）（2a-x）]（a＜1） 的定义域为B。（1）求A；（2）若
- 7读写任务阅读下面的短文, 然后按照要求写一篇150词左右的英语短文。 Nowadays more and more
- 8目前，我国每年新增人口1200万人，主要原因是[ ]A、人口死亡率低B、人口出生率高C、人口基数大 D、人口迁移
- 9分析“我国及其临国略图”，回答下列各题。小题1:我国位于（ ）A．亚洲东部，太平洋西岸B．亚洲西部，太平洋西岸C．亚
- 10