The kinds of animals are _________each other.
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科目:初中英語 來源:2011年江西省中考英語試卷(解析版) 題型:閱讀理解
After spending years searching for a planet with life, scientists may have found one. In September 2010, a team of US scientists discovered an Earth-sized planet called Gliese 581g. It has a surface temperature neither too hot nor too cold for liquid(液態(tài))water. Scientists think there is a chance that the planet could have life.
The planet Gliese 581g goes around a star called Gliese 581, which is about 20 light-years from Earth. That is about 194 trillion(萬億)kilometres -500 million times farther away from us than the moon.
A spacecraft traveling at a one-tenth of the speed of light would reach Gliese 581g within about 220 years. A human can’t live that long, but robotic explorers could make the job easier. However, our fastest spacecraft don’t come anywhere near that one-tenth light-speed mark.
At present, scientists don’t know what the surface might be like on Gliese 581g. What they know is that the planet is at the sight distance from its star to have liquid water. It’s also at the right distance to have an atmosphere that could protect the water if it is on the surface.
Although spacecraft won’t be getting there anytime soon, one way to look for life on Gliese 581g is to turn our radio telescopes(望遠(yuǎn)鏡)towards the planet and search for radiation(放射). By studying the radiation, scientists would find out about the chemicals(化學(xué)物質(zhì))around the planet and discover it Gliese 581g has an atmosphere. If it has one, studying the atmosphere would give us a good idea if the planet has life or not. But it’ll probably be many years before we can do this properly.
People have been arguing about whether there is alien life on Gliese 581g. Any discussion about alien life is just guessing at this point, according to its discoverers.
【小題1】 What did scientists find in September 2010?
A.A planet with water. | B.A planet similar to the earth. |
C.A planet without life. | D.A planet near the earth. |
A.is at the right distance from its star | B.moves around the earth |
C.is as far away from us as the moon | D.can be reached in about 220 years |
A.the possibility of living on Gliese 581g |
B.the kinds of chemicals around Gliese 581g |
C.the way of looking for life on Gliese 581g |
D.the aim of studying the radiation on Gliese 581g |
A.Gliese 581g, a Likely Living Planet | B.Gliese 581, a Likely Living Planet |
C.Gliese 581g and Its Star | D.Gliese 581g and Radiation |
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科目:初中英語 來源:2013-2014學(xué)年浙江省義烏市九年級(jí)3月月考檢測英語試卷(解析版) 題型:閱讀理解
It may seem easy to say that plants and animals are different. Any child can tell the difference between a tree and a dog. But those differences are far deeper than just what they look like. The cells (細(xì)胞) that plants are made up of are different. In other words, the cell wall of plants has something special.
First of all, it's important to find that not all plant cells have a cell wall. Besides, there are many differences of a cell wall based on the kinds of plant. The following is meant to be what a plant cell wall is like.
The cell wall of a plant is on the outside of the cell membrane (膜). It is usually hard and cannot be bent easily, but the degree of flexibility (韌性) of the cell wall is different. It is based on the special use that the cell has in keeping the plant alive. Cells that make up the trunk of a tree are clearly less flexible than? cells on a leaf.
Cell walls act in many ways. They serve to protect the plant. They provide support, as well as help in the movement of chemicals and wastes into and out of the cell. More importantly, they control the water? that goes in and out. Plants must have good water controlling systems (系統(tǒng)), allowing them to keep water during dry seasons, and get rid of unnecessary water. Plants can't walk around to find water, so being able to control water is very important.
So there you have it , what a plant cell wall is. Of course, there are many other things that are not talked about here. Knowing more about plant cell wails requires further study and research.
1.From the first two paragraphs we can find that _____.
A. all plants have a ceil wall?????????????
B. plant cells and animal cells are the same
C. different kinds of plant have different cell walls
D. there are no differences between the cells of a tree and a dog
2.The underlined word "bent" in the passage is the closest in meaning to _____.
A. 變形的 ?? B. 防水的 ? C. 太陽灼傷的 ??? D. 表皮破損的
3.Cells in the trunk of a tree are _____ those on a leaf.
A. as flexible as ????????? B. not so flexible as
C. more important than ?? D. less important than
4.What is the most important use of a plant cell wall?
A. To protect the plant. ???? B. To provide support.
C. To move chemicals and wastes. D. To control the water.
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科目:初中英語 來源:2013-2014學(xué)年江蘇省興化市九年級(jí)上學(xué)期期末考試英語試卷(解析版) 題型:閱讀理解
Taking away a city's rubbish is a big job. Every day trucks come into a city to collect it. Most rubbish is made up of things we can't eat or use. If we kept these things we would soon have a mountain of rubbish.
In some cities the rubbish is collected and taken outside of city to a dump. Often the city dump is placed where the ground is low or there is a big hole. The kitchen rubbish is broken into small pieces and sent into the sewage system. The sewage system takes away the used water from toilets, bathtubs and other places.
To keep mice and flies away, some earth is used to cover the newly dumped rubbish. Later, grass may be planted on the rubbish-filled land. Finally, a house or a school may be built there, and then you'd never know that this had once been an old rubbish dump.
In other cities the rubbish is burnt in special places. The fire burns everything but the metal. Sometimes the metal can be used again in factories where things are made of metal. The food parts of rubbish are put in special piles where they slowly change into something called humus, which looks like black earth. It is rich with the kinds of things that feed plants and help them grow.
1.You can most probably read the passage in_________.
A. a science book B. a TV guide
C. a history book D. a telephone book
2.The underlined word “sewage” in the passage means_________.
A.排污 B.染色 C.洗滌 D.吸塵
3.The main idea of the passage is_________.
A. to let us know taking away rubbish is a big job
B. to explain the need for rubbish collection
C. to introduce different ways to treat rubbish
D. to tell people to take useful things out of rubbish
4.How should we take care of a used metal box according to the passage?
A. By burning it off. B. By putting it in water.
C. By throwing it away. D. By reusing and recycling it.
5.According to the passage, the food parts of rubbish can be used again_________.
A. to feed animals B. to feed plants
C. to build a house D. to make machines
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科目:初中英語 來源:2012-2013學(xué)年遼寧省東港市九年級(jí)上學(xué)期期末考試英語試卷(解析版) 題型:單項(xiàng)填空
Can you provide us ____ some information about the kinds of vacations that you can
offer?
A.in B.for C.with D.to
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科目:初中英語 來源:2011-2012學(xué)年四川省江油市九年級(jí)中考適應(yīng)性考試(三)英語試卷(解析版) 題型:閱讀理解
Paragraph 1
Scientists have learned a lot about the kinds of people need. They say that there are several kinds of food that people should eat every day, they are: (1) green and yellow vegetables of all kinds; (2) citrus (柑桔) fruits and tomatoes; (3) potatoes and other fruits and vegetables; 94) meat of all kinds, fish and eggs; (5) milk and foods made from milk; (6) bread or cereal (谷類), rice is also in this kind of food; (7) butter, or something like butter.
Paragraph 2
People in different countries and different places of the world eat different kinds of things. Foods are cooked and eaten in many different kinds of ways. People in different countries eat at different times of the day. In some places people eat once or twice a day; in other countries people eat three or four times a day. Scientists say that none of the differences is really important. It doesn’t matter whether foods are eaten raw or cooked, canned (罐裝的) or frozen (冷凍的). It doesn’t matter if a person eats dinner at 4 o’clock in the afternoon or at eleven o’clock at night. The important thing is what you eat every day.
Paragraph 3
There are two problems, then, in feeding the large number of people on the earth. The first is to find some way to feed the world’s population so that no one is hungry. The second is to make sure that people everywhere have the right kinds of food to make them grow to be strong and healthy.
1.According to(依據(jù))the scientists,which of the following groups of food is the healthiest for your lunch?
A. Chicken, apples, cereal and cabbages.
B. Potatoes, carrots, rice and bread.
C. Oranges, bananas, fish and tomatoes.
D. Beef, pork, fish and milk,
2.It is important for people to eat ______.
A. three times a day
B. dinner at twelve o'clock
C. cooked food all the time
D. something from each of the seven kinds of food every day
3.People in different countries and different places of the world ____ .
A. have the right kinds of food to eat
B. cook their food in the same way
C. have their meals at the same time
D. eat food in different ways
4.Which of the following is not true?
A. People in some places don't have enough to eat.
B. There are too many people in the world.
C. One of the problems is that no one is hungry.
D. The scientists are trying to make people grow to be strong and healthy.
5.If there is Paragraph (段落) 4, what do you think is going to be talked about?
A. When people eat their lunch.
B. What to do with the two problems.
C. How to cook food in different ways.
D. Why people eat different kinds of food.
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