题目
题型:不详难度:来源:
Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths. Most of the different species of animals and fish depend on simple plants for their food. These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen. In fact, algae produce over half of the oxygen people breathe. How important seawater is!
Each plant or animal in our seas and oceans is an important link in a food chain. The algae are eaten in large amounts by microscopic animals, which are in turn consumed by larger animals. These food chains are delicately balanced.
The bad news about the food chains in the oceans is that they are under threat because of man. People once thought that the oceans were so big that it didn"t matter if we dumped rubbish into them or caught huge quantities of fish and whales for food. But we now know this is not true and fish stocks in the oceans have started to drop.
Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most countries have introduced fishing restrictions to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important seawater is!
小题1:People used to think that the rubbish thrown into the sea ________.
A.wouldn"t harm the fish in the sea |
B.would change the balance of the food chain |
C.would be broken down in the sea |
D.wouldn"t do much harm to the sea |
A.most fish and sea animals live at the surface of the seas |
B.it is very difficult to break the balance of a food chain |
C.excessive fishing has caused the decrease in fish stock |
D.it won"t be long before the problems concerning oceans will be solved |
A.The use of international agreements. |
B.Forbidding fishing to protect fish stocks. |
C.The use of new techniques. |
D.Raising people"s awareness of the need to protect oceans. |
A. The importance of seawater.
B. Life in the oceans.
C. How to protect food chains.
答案
小题1:D
小题2:C
小题3:B
小题4:A
解析
试题分析:本文讲述的海洋以及海水对人类的重要性,同时也描述了海洋的现状以及人们为了保护海洋所做的努力。
小题1:D 细节题。根据文章第四段前三行People once thought that the oceans were so big that it didn"t matter if we dumped rubbish into them or caught huge quantities of fish and whales for food.可知以前人们认为向海洋里扔垃圾是没有关系的,故D正确。
小题2:C 细节题。根据文章第四段最后一句But we now know this is not true and fish stocks in the oceans have started to drop.可知现在人们已经知道过度捕捞让 海洋里的鱼变少了。故C正确。
小题3:B 细节题。根据文章最后 一段Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most countries have introduced fishing restrictions to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important seawater is!可知ACD三项都是本文所讲述的保护海洋的方法。B项文章没有提及。
小题4:A 主旨大意题。根据文章第二段最后一句In fact, algae produce over half of the oxygen people breathe. How important seawater is!可知海水对我们人类来说是非常重要的。故本文讲述的是海水的重要性。A正确。
点评:本文讲述的海洋以及海水对人类的重要性,同时也描述了海洋的现状以及人们为了保护海洋所做的努力。文章基本上是考查细节题,对此类题型考生可以首先从问题中找到关键词,然后以此为线索,运用略读及查阅的技巧在文中迅速寻找这一细节,找到后再把这一部分内容仔细阅读一遍,仔细比较所给选项与文中细节的细微区别,在准确理解细节的前提下,最后确定最佳答案。
核心考点
试题【About 97% of the world"s water is salty and is found in our oceans and seas. But】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
小题1: Ask your classmates if they are having trouble with the teacher, too. If they say yes, perhaps your teacher is to blame.
Are you working up to your ability? Maybe you got a C in your last test, and your teacher told you that you could do better. And the kid sitting beside you got a C, too.小题2: Isn’t this unfair? Well, it could be that your teacher knows that you could do better if you put more effort into it. 小题3:
小题4: There’s nothing wrong with being sensitive (敏感的) ,but if you react to criticism quite differently from others, this could be a reason why you think your teacher doesn’t like you.
Does your teacher seem to act unfairly all the time, or just once in a while? Think about the harsh (苛刻的) things your teacher has done to you. Are these things happening every day, or just once or twice a month? If your teacher really hates you, you would probably be picked on all the time.小题5:
A.Are you the only person being treated badly, or is your teacher rough on the whole class? |
B.Are you getting along well with your classmates? |
C. Are you more sensitive than other students? |
D. Are you interested in your lessons? |
F.Teachers often grade students by different standards.
G.But the teacher didn’t say anything to him!
Air, as a gas, has no definite (明确的) shape, but, because it is matter, it takes up space. It is easy to prove that air is something that takes up space. Stuff a dry handkerchief into the bottom(底部) of a glass so that it will not fall out when the glass is turned upside-down. Push the upside-down glass; hold it straight into a jar of water till the glass is completely covered. When the glass is taken out of water, the handkerchief will be dry. The air inside the glass takes up space and keeps the water from coming in.
小题1:What does the underlined word “Stuff” (in Paragraph 2) mean?
A.Press tightly. | B.Take out. |
C.Put down. | D.Turn fully. |
A.the experiment is done in the laboratory |
B.the experiment is done outside the room |
C.the experiment is easily done |
D.the experiment is carried out indoors |
( W—water; A—air; H—handkerchief )
![](http://img.shitiku.com.cn/uploads/allimg/20191213/20191213012900-61810.jpg)
Most paragraphs of a passage or chapter have a "topic sentence" which expresses the central idea. The remaining sentence expand or support that idea. It has been estimated that between 60% and 90% of all expositive(说明的)paragraphs in English have the topic sentence first. Always pay special attention to the first sentence of a paragraph; it is most likely to give you the main idea.
Sometimes , though , the first sentence in the paragraph does not have the feel of "main idea" sentence. It does not seem to give us enough new information to justify a paragraph. The next most likely place to look for the topic sentence is the last sentence of the paragraph.
Remember that the opening and closing paragraphs of a passage or chapter are particularly important . The opening paragraph suggests the general direction and content of the piece, while the closing paragraph often summarizes the very essence (精髓).
小题1:It is a good idea to skim through a passage quickly first ________.
A.at about 350 w. P.m.(words per minute) |
B.to get the general idea of each paragraph |
C.so that you can take in each word separately |
D.to make sure you get to the end at least once |
A.usually comes in the middle |
B.is most likely to be found at the end |
C.is most often at the beginning |
D.is usually left out in expository writing |
A.in about 40% of cases | B.in about 80% of cases |
C.in about 20% cases | D.very rarely |
A.it does not seem to give us enough new information |
B.it is not long enough |
C.it does not come at the beginning |
D.it does not make complete sentence |
A computer
A computer is an "information processor". It is given information, called "data", instructed to do certain things and then show us the results. The data put into the computer is called the" input" and the results which come out are the "output". Some people say the circle of large standing stones at Stonehenge is a kind of computer. Prehistory people worked out their calendar from the position of the shadows made by the sun shining on the stones.
Extract 2
Teach yourself new subjects and skills at your own pace with a home computer. Use it to help with schoolwork, for self-improvement, even to improve your career skills. Learn touchtyping.
Foreign languages or computer programming. A home computer can help children of all ages learn classroom subjects such as spelling, geography and others. In fact it makes learning fun. So if you want to teach yourself, or help your children teach themselves---get a home computer. It can also help you manage your personal finances(经济)or help you to work taxes and plan household budgets(预算).You can make business a pleasure with a home computer.
小题1:The writer introduces the words such as "input" and "output" in order to_____.
A.introduce people to computer language |
B.show computer language is the same as English |
C.help people some scientific language |
D.give people some scientific language |
A.To give an example of the very first computer. |
B.To show that computers are older than mankind. |
C.To tell the difference between the past and the present. |
D.To give another way of explaining computers. |
A.the shadow is the input and the position is the output |
B.the sunlight is the input and the calendar is the output |
C.the position is the input and the sunlight is the output |
D.the calendar is the input and the shadow is the output |
A.a computer textbook | B.a company"s advertisement |
C.a teach-yourself computer book | D.a children"s guide to computers |
The true function of a university is that it keeps the ___51___ between knowledge and the real life. It unites the students with ordinary life in a ___52___ way. The university passes on information, but it ___53___ the information imaginatively. Imagination is the driving force for the society’s future development. Students’ imagination is the very ___54___ every university should protect and encourage. A university which ___55___ to do so has no reason for existence. With imagination, knowledge is not only knowledge: it includes all possibilities. It’s no longer a ___56___ on students’ memory. It’s food for thought and ___57___ for creative inventions.
Imagination is not ___58___ knowledge. Instead, it is a way leading to more knowledge. It works by thoroughly studying the current knowledge and then exploring every possibility about the knowledge. In the exploration, new knowledge ___59___. Imagination enables men to construct a new vision of the world and it adds ___60___ to life through endless possibilities. Imaginative people are restless all along.
Youth is imaginative and if the university can help preserve this precious wealth, the power of imagination can ___61___ change the world. Besides, it should also be made clear that imagination won’t be most effective without necessary experience. The problem of the current world is that those who are imaginative have only little experience ___62___ those who are experienced have weak imaginations. The ___63___ left for the universities is to hold together these two factors for the whole human race to ___64___ greater development and happiness.
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