题目
题型：不详难度：来源：
Earth Day is April 22. But on all other days, we must also remember how important water is. The water that we use is the most important natural resource on the earth. Today we face serious water problems. One of them is water pollution. All kinds of things from cars, factories, farms and homes make our rivers, lakes and oceans dirty. Polluted water is very bad for people to drink. And dirty water is bad for fish, too.
How do cars and factories make our water dirty? First they pollute the air. Then when it rains, the rain water makes our drinking water dirty. Dirty rain, called acid rain is also bad for plants, animals and buildings. Scientists say that in 30 years, more than half of the people in the world won’t have enough clean water. We have to learn how to stop wasting water. One of the first steps is to develop ways of reusing it. Today in most large cities, water is used only once and then sent out into a sewer system (下水道). From there it returns to the sea or goes underground.
But even though every large city reused its water, we would still not have enough. So we should make use of sea water by removing the salt in it. If we can take these steps, fresh water won’t be used up.
小题1:The world is thirsty for water because _______.
| A．we don’t have enough fresh water | B．a lot of water goes into sewer systems |
| C．only 70% of the earth’s surface is water | D．sea water is widely used rather than fresh water |
| A．is only bad for living things | B．is not bad for buildings and factories |
| C．can be produced in factories | D．is bad for people, animals, plants and buildings |
| A．use the water with salt in it | B．remove the salt from sea water |
| C．get water from underground | D．reuse the water in cities |
| A．Fresh water and sea water | B．A thirsty country |
| C．The importance of water | D．The world’s water problem |
答案
小题1:A
小题1:D
小题1:B
小题1:D
解析
小题1:细节题：从第一段的句子：Man can only drink and use the other 3% of fresh water from rivers, lakes, underground and so on. And we can not even use all of that because some of it has been made dirty.可知我们缺少的是纯净水。选A。
小题1:细节题：从第三段的：Dirty rain, called acid rain is also bad for plants, animals and buildings.可知酸雨对人，植物，动物都是有害的，选D
小题1:细节题;从最后一段的句子：So we should make use of sea water by removing the salt in it. 可知我们可以去掉海水里面的盐来利用海水。选B
小题1:主旨题：从第一段的句子：The world is not only hungry but also thirsty for water.可知这篇文章讲的是水的问题。选D
核心考点
试题【The world is not only hungry but also thirsty for water. This may seem strange t】；主要考察你对科普环保类等知识点的理解。[详细]
举一反三
A “Paperless classroom” is what more and more schools are trying to realize. Students don’t do any handwriting in this class. Instead, they use hand-sized or specially-designed computers. The teacher downloads texts from Internet libraries and sends them to every student’s personal computer.
Having computers also means that students can use the Web. They can look up information on any subject they’re studying, from maths to social science.
A high school teacher, Judy Herrel in Florida, US, described how her class used the Web. “Using a book that’s three or four years old is impossible,” she said.
A paperless classroom is a big step towards reducing the waste of paper.
“Think about the money and trees we could save with the computers,” she said.
But, with all this technology, there’s always a risk that the machines will break down. So, in case of a power failure or a technical problem, paper textbooks should still be widely available (可得到的) for these students.
小题1:The underlined word “critical” in the first paragraph probably has the same meaning as _______.
| A．worrying | B．dangerous | C．happy | D．important |
| A．pens | B．computers | C．test papers | D．notebooks |
| A．the Web can talk the students everywhere |
| B．the Web can take the place of teachers |
| C．the Web is a better tool for information |
| D．the Web is for downloading information |
| A．students won’t have trouble with their pens |
| B．computers may break down sometimes |
| C．students may not get all information from the Internet |
| D．paper textbooks may give students more information |
Life today brings new problems. One of the biggest is pollution. Water polluti
on has made our rivers and lakes dirty. It kills our fish and pollutes our drinking water. Noise pollution makes us talk louder and we become angry more easily. Air pollution is t
he most serious kind of pollution to all living things in the world.Cars, planes and factories all pollute our air every day. Sometimes the polluted air is very thick. People cannot see the sky clearly
.Many countries are making rules to fight against pollution. Factories now must clean their water before they throw it away. And they mustn’t let dirty smoke go into the air.
There are many things we can do to fight against pollution. We should put waste things in dustbins and do not throw them on the ground. We should go to work by bike or on foot instead of taking a car or a bus. If there are fewer people driving, there will be less pollution.
Ru
les are not enough. We should do our best to fight against pollution.小题1:Which of the following is NOT true about life in the past?
|
|
|
|
|
Oriole’s Nest
Picky, Picky
Scientists have no idea exactly why birds choose certain objects to build their nests. But scientists know that the main reason birds build nests is to keep their babies safe, warm and healthy.
Baby birds grow faster and are healthier when they are warm. They also learn to fly and leave the nests sooner than birds without warm homes.
What A Yarn (纱)
Yarn is big on an oriole’s shopping list during nest building. Scientists are still trying to work out why so many birds choose white yarn over other colors for nest building.
Scientists think that the white objects remind birds of cotton fluff (绒毛) they find in the wild.
Do It Naturally
Even though birds can help us recycle some of our junk by using it to build nests, they also need to use lots of natural things. Long grass, dried sticks, spider’s silk and mud are some of the natural ingredients that are good for nests, too.
You can make a collection box of things to leave for birds so they can help themselves. Hang a small plastic box with holes on a tree branch. Fill the box freely with nest building goodies. Hang the box on a tree and watch birds climb on board to pick through the junk to find their treasures.
Warning: Don’t let the birds turn into a tasty treat. Keep your bird station away from places where cats hang out.
For The Birds!
Stop! Don’t throw all that garbage out! Give some to the birds. Look and see how your old junk can help beautify and warm a bird’s new home.
小题1:The baby birds with warm homes are able to _____.
| A．choose right objects | B．leave the nests sooner |
| C．build good nests | D．learn to fly higher |
| A．Holes on the tree. | B．Food out of the rubbish. |
| C．A warning board. | D．A collection box of things. |
| A．Birds build nests to store things. |
| B．Birds regard white objects as cotton. |
| C．Birds and humans can help each other. |
| D．Birds and cats fight against each other. |
I greatly encourage you to be a part of the school sports. Even if you are not the best, you can still have fun. Sports give people a great and healthy way of spending an afternoon, instead of lying around playing video games or even getting into bad things. Sports also give us a sense of achievement. There isn’t a better feeling than to have done something fun and productive for my day.
I think that we all need sports to give us courage. If we try hard in sports, we usually do well. If we did the same in study, we would all be champions. Another reason why I encourage you to play sports is that it’s just fun. Without sports, our lives would just be boring. So as you may be able to tell, sports are amazing!
Our coaches not only teach us to play sports, but show class and good sportsmanship while playing them. It’s never fun when you lose to have the competitor rub it in your face. That’s why our coaches teach us to show class when we lose; also, when coaches get onto you, don’t get down. They only want to see you improve and learn from what they say. When you do badly and they don’t shout loudly is when you should start worrying because they are giving up on you.
Overall, sports are great! They bring out the best and worst of a lot of us. However, we can’ t let sports get too serious to where it brings down all the fun. So to have the most fun in sports, you just need try your best and not worry so much about the winning or losing.
小题1:The underlined phrase “get onto you” in Paragraph 4 probably means ________.
| A．point out your mistakes | B．take up your time |
| C．worry about your future | D．look into your privacy |
| A．Sports bring us great fun only if we have the talent. |
| B．Sports give us the best way of spending free time. |
| C．We can get more out of winning than losing. |
| D．We should take pleasure in doing sports. |
| A．Are we too caught up? | B．To win or to gain? |
| C．Are sports really great? | D．For honor or for health? |
Daily habits like eating more healthy food would have kept millions of families from becoming bankrupt（***）if the patients had taken ways for early prevention. For example, keeping a balanced diet（均衡饮食）, such as not consuming too much animal fat and trying to have enough vegetables and fruits, seems to be quite important.
One very effective and costless way of prevention is regular（定期的）exercise, which is necessary for a healthy mind and body. Regular exercise, such as running, walking, and playing sports is a good way to make people feel better.
In addition, health education plays a key role in improving people’s health. By giving people more information about health, countries could help people understand the importance of disease prevention and ways to achieve it. For example, knowing one’s family medical history is an effective way to help keep healthy. Information about health problems among close relatives will make them aware of what they should do to prevent certain diseases through lifestyle changes, which will work before it is too late.
However, paying more attention to disease prevention does not mean medical treatment is unimportant. After all, prevention and treatment are just two different means toward the same effect. In conclusion, we could save money on health care and treat patients more successfully if our country spends more money on health prevention and education.
小题1: What’s the meaning of the underlined word “consuming” in Paragraph 2?
| A．Avoiding. | B．Producing. | C．Eating. | D．Cooking. |
| A．Health or Illness? | B．Exercise or Illness? |
| C．Prevention or Education? | D．Prevention or Treatment? |
| A．more health education should be given |
| B．dressing warmly can prevent diseases |
| C．a balanced diet is cheaper than regular exercise |
| D．the government’s health budget should be increased |
最新试题
- 1我国著名的“鱼米之乡”指的是[ ]A．东北平原B．长江中下游平原C．华北平原D．云贵高原
- 2（1）写出下列物质发生水解反应的离子方程式，并指出水溶液的酸碱性： ①NaHS_________________ ②Na
- 3请将下列事件发生地点的英文字母代号填入图中相应方框内。每填对一个给1分，共2分 。A. 慕尼黑协定决定割给德国的地区
- 4法国国歌《马赛曲》在俄国一度被禁止演奏。但1891年法国舰队访问俄国港口时，俄国乐队高奏《马赛曲》，连沙皇也破例脱帽向法
- 5用适当的关系词填空。1. Everything ______ I know will be taught to the
- 6HE cleans your house. He repairs your broken toys. He helps
- 7当人体免疫功能过高时，会发生的疾病是[ ]A．艾滋病B．过敏反应C．肺结核D．肝癌
- 8如图所示，50个大小相同、质量均为m的小物块，在平行于斜面向上的恒力F作用下一起沿斜面向上运动．已知斜面足够长，倾角为3
- 9(8分） t℃时,将 2molSO2和 1molO2通入体积为 2L 的恒温恒容密闭容器中,发生如下反应:2SO2(g)
- 10设曲线在点（3，2）处的切线与直线ax+y+1=0垂直，则a=[ ]A．2B．C．D．﹣2
热门考点
- 1“道德之问”是过去一年热得发烫的“网络热词”，加强思想道德建设刻不容缓。思想道德建设的核心是A．集体主义B．为人民服务C
- 2广东革命政府进行北伐的目的是[ ]A、推翻资产阶级的统治 B
- 3【题文】请在下面的一段文字的空白处填写恰当的语句。上天把诗人作为唯一可贵的礼物，赠给我们，以便消除我们的孤独，给我们慰藉
- 4阅读下列材料，回答问题：材料一：日本是缺乏资源的国家，是教育作用于开发人的脑力、心中的智慧资源和文化资源的。这是今天日本
- 5人体的消化系统是由 和 组成的。
- 6【题文】下图中，AB、CD两线相交于O点，∠AOC小于45度。读图完成小题。【小题1】若图中O为北极点,OB为晨线,且此
- 7已知向量a=（1，0），b=（0，1），c=ka+b（k∈R），d=a-b，如果c∥d，那么（ ）A．k=1且c与d同
- 8根据KNO3和NaCl的溶解度曲线，回答下列问题：⑴10℃时KNO3的溶解度_________(填“＞”、“＜”或“＝”
- 9用于做亲子鉴定的材料是（ ）A．白细胞B．红细胞C．血小板D．血浆
- 10（6分）小华和小敏同学用电池组、电压表、电流表和滑动变阻器等实验器材，测量标有“2.5V”字样小灯泡的电功率。（1）如图