题目内容

How to be a safe and smart SEARCHER

S

everal keywords will help to find better results. Use more than one keyword when you are doing a search. If you want to find out about seagulls, for example, search for and not just ‘seagull’ – because seagull might also be the name of just about anything else, from a hotel to a documentary film.

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xact references can help you find what you’re looking for. If you are looking for an exact phrase or sentence, e.g. , type it between quotation marks (“”) and only exact matches will be shown. This is useful when you want to find something you’ve already seen but lost.

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void common words like ‘a’ or ‘the’ in a search. These aren’t always helpful and are usually unnecessary.

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emove unwanted results by adding a minus symbol (-). For example, would leave out all references to hotels and films.

91 . Make sure that you spell every word in the search box correctly. The smallest typing mistakes can bring unwanted results - especially when the mistyped word exists.

H

ave a filter(过滤程序). It’s a good idea to filter your searches, especially when you are searching for pictures. Ask an adult to help you add a filtering system. There are lots of filtering software options available.

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xperiment with different search engines until you find the one that’s best for you. Some search engines personalise the results. So check out the option of using a search engine that doesn’t do this and you will get different results.

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eliability is very important when you are searching on the Internet. Always ask yourself, “Is this reliable?” Don’t make the mistake of believing everything you see. Some websites are unreliable and some information is false. Check your information on other websites before accepting it.

1.This is an article written for adults, isn’t it?

______________________________________________________________________.

2.If you want to find out about peaches, what keywords may help you find better results?

______________________________________________________________________.

3.How can we get exact matches when we are looking for an exact phrase?

______________________________________________________________________.

4.What can be filled in the blank?

______________________________________________________________________.

5.What is especially important for picture searches?

______________________________________________________________________.

6.Write three DON’Ts about safe and smart search.

Don’t _____________________________.

Don’t _____________________________.

Don’t _____________________________.

1.No, it isn’t. 2.Fruit peach. 3.By typing the phrase between quotation marks./By using quotation marks. 4.Check your spelling (carefully). /Correct spelling. 5.Filter software. 6.Don’t...
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Robert and Henry were going home from school, when, on turning a corner, Robert______out, “A fight! Let us go and see!” “No,” said Henry; “Let us go quietly home and avoid this quarrel. We have______to do with it, and may get into trouble.”

“You are not a brave boy, and afraid to go, "said Robert, and off he ran. Henry went straight home, and in the afternoon went to school, as usual,______ Robert had told all the boys that Henry was a coward, and they laughed at him a great deal.

A few days______, Robert was bathing with some schoolmates and _____his depth. He struggled and screamed for help, but all in vain. The boy _____ had called

Henry a coward, got away from the water as fast as they could, but they did not even try to help him. Robert was fast _____, when Henry threw off his clothes, and sprang into the water, By great effort, and______much danger to himself, he brought Robert to the shore, and thus saved his life.

Robert and his schoolmates were_____at having called Henry a coward. They admitted that he had more_______than any of them.

Never be afraid to do good, but always fear to do evil.

1.A. cried B. jumped C. said D. turned

2.A. something B. . anything C. nothing D. everything

3.A. Or B. But C. And D. So

4.A. afterward B. before C. ago D. later

5.A. got out of B. got into C. got on D. got off

6.A. whom B. who C. which D. whose

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8.A. with B. in C. on D. at

9.A. mad B. good C. sad D. ashamed

10.A. courage B. strength C. power D. ability

1.A 2.C 3.B 4.D 5.A 6.B 7.D 8.A 9.D 10.A 【解析】文章讲述了罗伯特和亨利的故事,因为亨利不去看别人打架,罗伯特告诉别人说他是胆小鬼,后来罗伯特在游泳的时候差点出事,亨利救了他,从此他们都很敬佩他。 1.句意:罗伯特大声说“有人打架,我们去看看”。A. cried 喊; B. jumped 跳;...

A Cloud of Hope and Danger

A small cloud floats through the air in a hospital operating room. In the room a patient, suffering from cancer, lies on a table. The cloud surrounds(包围) the patient, covering her body and filling her lungs(肺). The cloud is not smoke or steam. It is made of millions of microscopic robots called nanorobots(纳米机器人). These tiny robots move from cell(细胞) to cell in the patient’s body, destroying the cancer.

Fighting cancer with nanorobots is only an idea today, but scientists say that it could be possible in the future. Using nanorobots for good purposes such as fighting disease or repairing the environment may be the solution to many of today’s problems.

However, nanorobots could be a dangerous risk as well. Since nanorobots are so tiny, they will have to work in large teams of many thousands to many millions. For this reason, nanorobots will have to be programmed to build themselves. Scientists will not have the ability to build millions of nanorobots one by one.

This ability to reproduce is making some scientists worried. What if something goes wrong in the programming? Quite a lot of crazy nanorobots would be far worse than any disease. Some people think that if they get out of control, nanorobots could destroy the Earth.

What should be done? Should we continue researching nanorobots or should we search for other methods? This is one of the many difficult decisions that we have to make in the future.

1.What is the cloud in the passage, smoke and steam or microscopic robots?

________________________________________________________________________

2.What can be the good use of nanorobots for us?

________________________________________________________________________

3.Why will nanarobots have to work in large teams?

________________________________________________________________________

4.What makes it possible for nanorobots build themselves?

________________________________________________________________________

5.Can you give the passage another title?

________________________________________________________________________

6.Are you for or against using nanorobots in the future? Why?

________________________________________________________________________

1.Microscopic robots. 2.Fighting disease or repairing the environment. 3.Because they are so tiny. 4.The ability to reproduce. 5.Whether we should research nanorobots or not. 6.Any reas...

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