根据以下内容回答题：The first astronaut to walk in space，Leonov，and his companion，Belaiev，began making preparations for the walk as soon as their spaceship was launched．The spaceship was equipped with a double door，which was fitted with a bellows（风箱）between the ship and the outside． This made it possible for the astronaut，in his space suit with oxygen supply，to go first from the air-filled ship to the bellows．Then the air was let out of the bellows，and while the man stepped outside，the air inside the ship remained at normal pressure．If the door had opened di-rectlV into space，the air in the ship would have rushed out and been lost when．the dooropened． Leonov and Balaiev practiced testing the doors several times after they had begun moving around the earth．When the time came for Leonov to go out，his companion helped him attach the cable that was to keep him from floating away from the ship．Then Leonov entered the bel-lows，and the door closed behind him．When’there was no air left in the bellows，the outer door opened and Leonov could see the blackness of space and the blinding light of the sun． If the sky appears blue to us on earth，it is because the earth’s atmosphere absorbs a cer-rain number of blue rays of sunlight．Out where there is no air，this phenomenon does not take place．On the earth，our atmosphere spreads light so that，when the sun is up，light seems to be everywhere．However，in the airless outer space，strong lights，such as the sun，exist side by side with a dark similar to the blackest night．The absence of air also explains why the stars do not seem to twinkle（闪烁）in space，as they do from the earth．

The spaceship was furnished with a bellows in order to__________ ．

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请以“私人汽车的好处与坏处”为话题作文

The best title for the passage might be__________.

According to t．he author，when some change in a product is necessary，a manufacturer will choose to__________ ．

It is stated in the passage that those responsible for giving a product customer-appeal are__________．

根据以下内容回答题：One of the most authoritative voices speaking to us today is，of course，the voice of the advertisers. It shouts at us from the television screen and the radio loudspeakers，waves to us from eVery page of the newspaper，signals to us from the roadside bill-boards all day and flashes messages to us in colored lights all night． Advertising has been among England’s biggest growth industries since the war．PerhaDs the reason is that advertising saves the manufacturers from having to think about the customer．At the stage of designing and developing a product，there is quite enough to think about without worrying over whether anybody will want to buy it．The designer is busy enough without adding customer-appeal to all his other problems of man．hours and machine telerances and stress fac-tors．so they just go ahead and make the thing and leave it to the advertiser to find eleven wavs of making it appeal to purchasers after they have finished it，by pretending that it offers status，or attracts、love，or signifies manliness． Other manufacturers find advertising saves them from changing their prodUCt．And manu．facturers hate change．The ideal product is one which goes on unchanged for ever．If，therefore，for one reason or another，some alteration seems calied for—how much better to change the image，the packet or the pitch made by the product，rather than go to all the inconvenience of changing the product itself．

Which of the following can best describe the author‘s attitude toward modem advertising?

The best title for the passage may be__________ ．

According to the author，which is NOT the designer‘s chief concern when he deslgns a product?

What is the author’s attitude?

According to the passage which of the following is NOT true?

Which of the following is NOT th．e result of burning garbage?