It seems to be strange to you there is a blind spot(盲点)on the eyes, Here is an
题型：不详难度：来源：
It seems to be strange to you there is a blind spot(盲点)on the eyes, Here is an interesting experiment(实验)that can make something disappear, when one eye is open.
Make a card about the size of a postcard and write two English letters L and R on it, Lon the left and R on the right. First, hold the card about 80 cm away and you see both the letters. Then close your right eye and look at the letter R only with your left eye. And now, as you move the card slowly towards you, you" 11 find the letter L disappearing. But if you move the card nearer to your face, the letter will be seen again. Now do the same experiment with your left eye closed, you"ll find the letter R disappearing.
Why does the letter disappear? It is because there is a blind spot on the eye. When the image（影像）of the letter falls on the blind spot, it won"t be seen. That is why either of the letters disappears．
小题1:The writer of the passage thinks that_______ there is a blind spot on the eye.| A．few people know | B．no one knows | C．only you know | D．all the people know |
小题2:The word "disappear" in the passage means_______ in Chinese.小题3:You fail to see the letter L in the experiment because _______.| A．your eyes are poor | B．its image falls on the blind spot | | C．your left eye is not open | D．you move it close to your eye |
小题4:In which order(顺序)should you do the experiment?
①Hold the card ②Move the card nearer ③Close your right eye
④write two English letters ⑤Look at the letter R ⑥Make a card| A．④⑥①②③⑤ | B．①③⑥④⑤② | | C．⑥①④③②⑤ | D．⑥④①③⑤② |
小题5:The passage mainly tells us_______.| A．how to find the blind spot | B．an interesting experiment | | C．where the blind spot is | D．there is a blind spot on the eyes. |
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答案
小题1:A
小题2:C
小题3:B
小题4:D
小题5:D |
解析
试题分析：这似乎是奇怪的你有一个盲点的眼睛,这是一个有趣的实验,可以让东西消失,当一只眼睛是睁着的。做一个卡片大小的明信片,写两个英文字母L和R,R朗左边和右边。首先,把卡大约80厘米远,你会看到信件。然后闭上你的右眼看字母R只有你的左眼。现在,当你移动卡慢慢地向你,你会发现字母L消失。但是如果你移动卡靠近你的脸,这封信将会出现。现在闭着左眼做相同的实验,你会发现字母R消失。为什么字母消失?这是因为有一个盲点。当影像的盲点,它不会被看到。这就是为什么这两个字母就消失了。
小题1:细节理解题。问题：短文中作者认为多少人知道眼睛有盲点？结合短文提供的信息，人们现实生活中很少有人知道这一现象的存在。故选：A
小题2:细节理解题。问题：单词的汉语意思是什么？分析原文：Here is an interesting experiment(实验)that can make something disappear, when one eye is open.句意：这是一个有趣的实验,可以让东西消失,当一只眼睛是睁着的。故选：C
小题3:细节理解题。问题：你实验中你为什么没有看到字母L?分析原文：as you move the card slowly towards you, you" 11 find the letter L disappearing.句意：当你移动卡慢慢地向你,你会发现字母L消失。故选：B
小题4:细节理解题。问题：在实验中的正确排序是什么？联系短文的第二自然段发现，第四项的顺序是正确的。故选：D
小题5:细节理解题。问题：主要告诉我们什么？通读全文中得知重点描述在我们的眼睛中有盲点。故选：D |
举一反三
The world is not hungry , but it is thirsty . It seems strange that nearly 3/4 of the earth is covered with water while we say we are short of water. Why? Because about 97% of water on the earth is sea water which we can"t drink or use for watering plants directly. Man can only drink and use the 3% - the water that comes from rivers and lakes. And we can"t even use all of that, because some of it has been polluted .
Now more water is needed. The problem is: Can we avoid (避免) a serious water shortage later on? First, we should all learn how to save water. Secondly, we should find out the ways to reuse it . Scientists have always been making studies in the field. Today, in most large cities water is used only once and then runs to the sea or rivers . But it can be used again. Even if every large city reused its water, still there would not be enough. What could people turn to next?
The sea seems to have the best answer. There is a lot of water in the sea. All that needs to be done is to get the salt out of the sea water. This is expensive, but it"s already used in many parts of the world. Scientists are trying to find a cheaper way of doing it. So you see, if we can find a way out, we"ll be in no danger of drying up.
小题1:The world is thirsty because ________.| A．3/4 of the earth is covered with water | | B．we have enough sea water to use directly | | C．we haven"t used all the water in rivers and lakes | | D．about 97% of water on the earth can"t be drunk or used for watering plants directly |
小题2:Which of the following is true ?| A．3% of water on the earth is in rivers and lakes. | | B．75% of water on the earth is the sea. | | C．97% of the earth is covered with water. | | D．3% of water on the earth is sea water. |
小题3:From the passage we learn _________.| A．if every city reuses its water, we"ll be in no danger of drying up | | B．man can only drink and use about 25% of water on the earth | | C．today in most large cities water is used only once | | D．water can be used only once |
小题4:To avoid the serious water shortage , which of the following is the most important?| A．Save water and try to make good use of the water in rivers and lakes. | | B．Don"t pollute water and keep all rivers and lakes clean. | | C．Make dirty water clean and then reuse it. | | D．Try to find a cheaper way to get the salt out of the sea water. |
小题5:The name of the passage would be ________| A．The Sea Water | B．How to Save Water | | C．The Thirsty World | D．The Polluted Water |
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We each have a memory（记忆力）. That’s why we can still remember things after a long time. Some people have very good memories and they can easily learn many things by heart, but some people can only remember things when they say or do them again and again. Many of the great men of the world have got surprising memories.
A good memory is a great help in learning a language. Everybody learns his mother language when he is a small child. He hears the sounds, remembers them and then he learns to speak. Some children are living with their parents in foreign countries. They can learn two languages as easily as one because they hear, remember and speak two languages every day. In school it is not so easy to learn a foreign language because the pupils have so little time for it, and they are busy with other subjects, too.
But your memory will become better and better when you do more and more exercises.
根据短文内容，选择最佳答案。
小题1:Some people can easily learn many things by heart because .| A．they always sleep very well | B．they often eat good food | | C．they read a lot of books | D．they have very good memories |
小题2:Everybody learns his mother language .| A．at the age of six | B．when he is a small child | | C．after he goes to school | D．when he can read and write |
小题3:Before a child can speak, he must .| A．read and write | B．make sentences | | C．hear and remember the sounds | D．think hard |
小题4:In school the pupils can’t learn a foreign language well because .| A．they have no good memories | B．they have no recorders | | C．they have too much time for it | D．they are busy with other subjects |
小题5:Your memory will become better and better .| A．if you have plenty of good food | | B．if you do more and more exercises | | C．if you do morning exercises every day | | D．if you get up early |
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Tom and Fred are talking about the year 2020. “What will our world be like in the year 2020?” asks Tom.
“I don’t know,” says Fred.
“What do you think?” asks Tom.
“Well, no one knows, but it’s interesting to guess,” says Fred.
“In the year 2020 everyone will carry a pocket computer. The computer will give people the answer to all their problem. We will have telephones in our pockets, too, and we will be able to talk to our friends,” says Tom.
“A lot of people will live and work under the sea. Machines will do most of the work, and so people will have more holidays. They will be able to fly to the moon by spaceship and spend their holidays there,” says Fred.
“And I hope I will be able to live under the sea,” says Tom. “Won’t that be very interesting? Just like a fish.”
小题1:Tom and Fred are talking about _______.| A．their school life | B．some interesting information | | C．their life now | D．their life in the future |
小题2:Machines will do _______ of the work.| A．most | B．some | C．much | D．little |
小题3:In 2020, we’ll talk to friends at all times and everywhere, because we’ll have ______.| A．pocket computers | B．more holidays | C．pocket telephones | D．go on sale |
小题4:Tom says _______.| A．he likes fish very much | | B．he’d like to live under the sea like a fish. | | C．he will go fishing under the sea. | | D．he will spend holidays on the moon. |
小题5: Which of the following is NOT mentioned?| A．People will be able to fly to the moon in a spaceship. | | B．People will have more holidays. | | C．Many people will live and work under the sea. | | D．People will build farms under the sea. |
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Have you ever been to London? How much do you know about London? Now let me tell you.
London has a population of about 7, 000, 000. From about the year 1800 to 1945, London was the biggest city in the world. But now many cities are even bigger than before.
London is famous for many things. Tourists come from all over the world to visit its famous buildings and listen to the famous clock, Big Ben.
Like many big cities, London has problems such as traffic and pollution, and they stop the city from developing. Every day about 1, 000, 000 people come and go by underground, but there are still too many cars and buses in the streets. So the air isn’t clean. However, it is cleaner than it was 100 years ago.
For me, the best things in London are the parks. There are five parks in the city centre. But my children’s favourite place is Hamleys, the biggest toy shop in the world.
小题1:Maybe London became the biggest city in the world in______. 小题2:What does the underlined word “underground” mean? | A．Ship. | B．Car. | C．Subway. | D．Taxi. |
小题3:What are the best things in London for the writer? | A．Famous buildings. | B．Parks. | C．Cars and buses. | D．Toys. |
小题4:---What’s Hamleys in London according to the passage? ---It’s a______. | A．toy shop | B．museum | C．park | D．clock |
小题5:Which of the following sentences is NOT TRUE? ________. | A．London has a population of about 7, 000, 000 | | B．London is famous for buildings and Big Ben | | C．The traffic in the city is easy because of the underground | | D．The air in London is cleaner than 100 years ago |
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NOTICE
To protect the environment and stoop the soil(土壤)from being carried away, we’ll go to Forest Park to plant tress this Sunday. The students of Grade Two and all the teachers are invited.
In the morning, the park ranger( 护林人 ), Jeff White, will teach us about the importance of trees and how trees work. Then he’ll show us around the forest, In the afternoon, we’ll plant new trees where the old big ones have been cut down. The workers in the park will teach us how to plant trees.
We’ll meet at the school gate at 7:40 on Sunday morning and leave for the park at 8:00. We’ll take our school buses there. Please take tools(工具 ) and lunch with you. Remember to arrive on time.
The Headmaster Office
Tuesday, March 4th 2014
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小题1:They’ll go to plant trees on .| A．March 4th | B．March 5th | C．March 8th | D．March 9th |
小题2:The right order（顺序） of the following steps is .
①visiting the forest ②planting trees
③meeting at the school gat ④listening to Jeff White’s report 小题3:They will leave for the park at | A．7:00 a.m. | B．8:40 a.m. | C．7:40 a.m. | D．8:00 a.m. |
小题4:They’ll go to Forest Park .| A．on foot | B．by bus | C．by car | D．by subway |
小题5:Which of the following is TRUE?| A．the students will have lunch in Forest Park. | | B．The students don’t need to take tools with them. | | C．Jeff White will teach the students to plant trees. | | D．All the students of this school will go to plant trees. |
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