英语论文网

.
These delicate creatures now face danger of another kind - from scientific progress. In the US， millions of farms grow genetically modified maize which is pure poison for the butterfly. Laboratory experiments have shown that half of the butterflies which feed on the leaves of genetically modified maize die within 48 hours. Not all experts agree that this variety of maize is responsible for the threat to the Monarchs. In spite of these doubts， the European Union has refused to approve new crops of genetically modified maize until further investigations have been carried out.
Greenpeace is campaigning against genetically modified products （in Spain， there are already 20，000 hectares of modified maize）。 The environmental organization recently published a list of 100 species of butterfly in Europe alone which are threatened with extinction.
16 The Monarch butterfly travels 5，000 km each year.
A.Right
B.Wrong
C.Not mentioned

17 The Monarch butterfly looks fragile.
A.Right
B.Wrong
C.Not mentioned
18 The Mexicans like butterflies very much.
A.Right
B.Wrong
C.Not mentioned
19 in bad winters， about 70 per cent of the butterflies can stay alive
A.Right
B.Wrong
C.Not mentioned
20 In early April， the butterflies leave their winter homes flying back north
A.Right
B.Wrong
C.Not mentioned
21 Genetically modified maize isn’t poisonous to the butterflies.
A.Right
B.Wrong
C.Not mentioned
22 Genetically modified products are not popular in Mexico
A.Right
B.Wrong
C.Not mentioned
第3部分：概括大意与完成句子（第23～30题，每题1分，共8分）
下面的短文后有2项测试任务：（1）第23～26题要求从所给的6个选项中为第2～5段每段1选择个最佳标题；（2）第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。
The Science of Sport
1 At the 2004 Olympic Games in Athens， the Chinese athlete Liu Xiang equaled the world record for the 110 metres hurdles （跨栏） when he ran the race in 12.91 seconds.
This record time had been set in 1993 by British sprinter （短跑运动员） Colin Jackson and 9 years went by before another athlete was able to run as fast.
2 Record-breaking in all track events is Slowing clown and we appear to be moving much closer to the limits of human performance. Nevertheless， every four years， records which were previously thought to be unbeatable are broken. So what’s behind this never-ending improvement in performance？ And how long can we keep breaking records？ Is there a limit to human performance or will athletes continue to gain seconds？
3 Most experts agree that it isn’t the athletes’ bodies which have changed but the huge advances in sport science which have enabled them to improve their performances. The individual athlete obviously has to have the necessary skill and determination to succeed， but the help of science and technology can be significant. Research has brought a better understanding of the athlete’s body and mind but the advances in sports equipment technology have also had an important impact on human performance.
4 Scientists have shown that an athlete’s body’s needs vary according to the type of sport. This research has helped top sports people to adapt their training programme and diet better to their particular needs. Running the marathon and cycling， for example， are endurance （耐力） sports and require a different parathion （硝苯硫磷脂） to that of a 100-metre sprinter. In some sports， changes in techniques have significantly improved performance.
5 But in any sport， a player’s success or