电大英语II(2)历届试题及答案分类.doc
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1、Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-date电大英语II(2)历届试题及答案分类电大英语II(2)历届试题及答案分类第三部分 完形填空Genetic EngineeringMany people are unaware that a lot of the foods they eat every day, such as bread ham and cheese, have been altered by us
2、ing new technology. Food can be changed. It can be made to taste different or to look different carrots can be made to taste of chocolate and apples can be made redder. Some food that appears the same has been scientifically improved, for example, fish can be made to grow faster. Should we be please
3、d or worried? Will new technology bring benefits, or is it about to go out of control?Genetically engineered foods are produced by taking genetic material from one species and transferring it to another. For example, an antifreeze gene which appears naturally in Arctic fish has been introduced into
4、tomatoes and strawberries so that they dont freeze in cold weather; a human gene has been introduced into pigs to make them grow more quickly. Some claim great advantages. They point out that crops can be made stronger and more disease resistant, so pesticides can be reduced. They also maintain that
5、 food can be made more nutritious or that the fat content can be reduced to make it healthier.Scientists are working hard to develop better aerials for mobile phones, a spokesman for Phikia Phones said today. It really irritates users when they lose the signal in the middle of a call, so we are deve
6、loping new aerials that will enable users to receive stronger signals. Many users reported that when they were travelling, the signal was often lost, said the spokesman. The new aerals are designed to avoid losing the signal by receiving the message on a wider range of radio frequencies. We have lea
7、rnt that this is a major concern for phone users said the spokesman. The new phones have a flexible external aerial, which users will have to get used to touching their ear or head. The aerials - make the phones able to pick up a wider range of signals. The company spokesman insisted that _ this was
8、 not a potential danger “Every _ safety regulation has been followed”, he told our reporter. “If Id had one of these phones this morning, I wouldnt have missed my train coming here”, joked the spokesman. The biggest adventure I ve ever had was trekking in Thailand. We hired a guide (16) to take us t
9、o a village in the jungle. We didnt know that he (17) had never been there before. (18) Unless we reached the village, we wouldnt be able to find somewhere to sleep, (19) so we wanted to get there in about 8 hours. After two hours we all realized we were lost. The (20) further we walked, the more co
10、nfused we became. Luckily after a further 4 hours we met some hunters. They didnt speak the same language as our guide, but we were able to (21) get across that we were lost. They (22) redirected us towards the village. It was after dark when we arrived there. We had been walking (23) for over 14 ho
11、urs and we were (24) absolutely exhausted. We had been very lucky; if we (25) hadnt met the hunters, we would have had to sleep in the jungle.I was travelling alone in Western Australia last year, and one day i set off to climb a high peak in that area. Although in the summer there are many tourists
12、, 1 was there out of season because there werent any tour groups. Soon after I reached the top, it began to drizzle and the fog came down . Very soon, it was so thick that path. 1 take my phone with me everywhere because you never know when you will need it.Eventually I called my dad, who was 9,000
13、miles away in the UK. He told me to phone the local emergency services, but I felt so stupid that I didnt want to. Luckily , my dad realised this and made up his mind to call them himself. The rescuers called me on mobile to find out exactly where I was, but unfortunately the battery ran out after f
14、ive seconds. I lay down under a rock and waited-it was nearly night time and I was cold and wet. Just as they were about to call off the search for the night, they found me. Fortunately one rescuer had said Lets try for just five more minutes. If they had given up, I would have died.Genetic Engineer
15、ingMany people are unaware that a lot of the foods they eat every day, such as bread, ham and cheese, have been altered by using new technology. Food can be changed. It can be made to taste different or to look different - carrots can be made to taste of chocolate and apples can be made redder . Som
16、e food that appears the same has been scientifically improved, for example, fish can be made to grow faster. Should we be pleased or worried? Will new technology bring benefits, or is it about to go out of control? Genetically engineered foods are produced by taking generic material from one species
17、 and transferring it to another. For example, an antifreeze gene which appears naturally in Arctic fish has been introduced into tomatoes and strawberries _ so that _ they don t freeze in cold weather, a human gene has been introduced into pigs to make themgrow more quickly.Some claim great advantag
18、es. They point out that crops can be made stronger and more disease resistant, so pesticides can be reduced. They also maintain that food can be made more nutritious or that the fat content can be reduced to make it healthier.E-tiquette!Emails -do you love them or hate them? Whatever you feel, they
19、are here to stay. Here are some tips and ideas (16) _ for _ improving your email writing. First , starting with a greeting and ending with a closure may seem old-fashioned , but it avoids (17) _ upsetting _ people by appearing rude. It neednt be Dear Sir or Madam , and Yours faithfully , but just sa
20、y Hi or Hello or Dear (and a first name) , then close (18) with _ Regards (for more formal contacts) and Cheers or Bye for friends. In offices and with people you know well and email frequently , you can just begin (19) _ with _ their first name. Getting emails that are not directly relevant (20) _
21、to _ you is very irritating. Having wide mailing group lists doesnt necessarily keep people (21)_ informed _. It is estimated (22)_ that _40% of all emailsaredeletedimmediatelybecausetheyhaveanirrelevantot.frivolous subject-line. Try to organise your mailing groups accurately and keep (23) _ updatin
22、g _ your mailing lists regularly. If you don t do this , your messages may not (24) get through _to the people you want to send them to because they delete them automatically without reading them. If your contact (25) is used to deleting _ irrelevant emails from you , they may also delete e any rele
23、vant ones automatically. . . Scientists are working hard to develop better aerials for mobile phones, a spokesman for Phikia Phones said today. It really irritates users when they lose the signal in the middle of a call, so we are developing new aerials that will enable users to receive stronger sig
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