届高考英语人教必修四精析讲义Unit 2 Section Ⅰ Warming UpReadingPrereading含答案.docx

1、届高考英语人教必修四精析讲义Unit 2 Section Warming Up Reading Prereading含答案 Establishing a human colony on the Moon and travelling to Mars has been the stuff of dreams since the dawn of the space age. But these visions face many hurdles (障碍). How can humans survive for months or years in the ultrahostile (极端恶劣的)

2、environment of space? What, for instance, will they eat?Agricultural researchers at a Dutch university say they are taking the first steps towards providing an answer. They are growing vegetables in soils similar to those found on the Moon and Mars, looking for ways of helping space pioneers grow th

3、eir own crops. “When people go to the Moon and Mars they also have to eat, and its easiest for them to grow their own food，” said Wieger Wamelink, surrounded by several dozen plants in a special greenhouse at Wageningen, an agricultural university in central Netherlands. “We wanted to use real Marti

4、an and lunar soil, to see if plants would actually grow in it，” Wamelink told reporters. Of course, getting real lunar and Martian potting soil is an impossible task. But an Internet search revealed an unlikely supplier: NASA. “The US space agency makes ground similar to that on the Moon from sand f

5、ound in an Arizona desert, while Mars crimson soil is scooped (舀；掏) from a volcano in Hawaii，” Wamelink told reporters. The first experiments started in 2013 after Wageningen received an order of 100 kilograms (220 pounds) of NASAs imitation “space soil” at a hefty price of 2,000 euros (D|S2,285). “

6、To work in this soil was very special. Nobody, not even NASA, could tell us what would happen, even just by simply adding water，” he said. The imitation ground at first was a little “reluctant” to absorb water, but soon turned out to be good potting soil.“Especially in the Martian soil, plants were

7、growing very fast and very good. They even started to flower, something that we never anticipated (预料，预见)，” Wamelink said. Section_Warming Up & Reading PrereadingA PIONEER FOR ALL PEOPLEAlthough he is one of Chinas most famous scientists, Yuan Longping considers himself a farmer, for he works the la

8、nd to do his research. Indeed, his sunburnt face and arms and his slim, strong body are just like those of millions of Chinese farmers, for whom he has struggled for the past five decades. Yuan Longping grows what is called super hybrid rice. In 1973, he became the first agricultural pioneer in the

9、world to grow rice that has a high output. This special strain of rice makes it possible to produce 20% more of the crop in the same fields. Now more than 60% of the rice produced in China each year is from this hybrid strain.Born in 1930, Yuan Longping graduated from Southwest Agricultural College

10、in 1953. Since then, finding ways to grow more rice has been his life goal. As a young man, he saw the great need for increasing the rice output. At that time, hunger was a disturbing problem in many parts of the countryside. Yuan Longping searched for a way to increase rice harvests without expandi

11、ng the area of the fields. In 1950, Chinese farmers could produce about fiftysix million tons of rice. In a recent harvest, however, nearly two hundred million tons of rice was produced. These increased harvests mean that 22% of the worlds people are fed from just 7% of the farmland in the world. Yu

12、an Longping is now circulating his knowledge in India, Vietnam and many other less developed countries to increase their rice harvests. Thanks to his research, the UN has more tools in the battle to rid the world of hunger. Using his hybrid rice， farmers are producing harvests twice as large as befo

13、re.pioneer n开拓者；先锋；先驱work the land耕种土地work在此处意为“管理，经营，耕种”，是及物动词。sunburnt/snbnt/adj.晒黑的for whom he has struggledwhom he has struggled for。struggle/strl/vi.&n.斗争；拼搏；努力decade/dekeId/n.十年；十年期for the past five decades在过去的50年里，与现在完成时连用。super/sjup/adj.特级的；超级的常用来构成合成名词，如：supermarket“超市”，superman“超人”。hybrid/

14、haIbrId/adj.混合的；杂种的 n杂交种；混血儿what is called super hybrid rice是what引导的宾语从句，what意为“的东西；的事情”。动词不定式to grow rice作定语，修饰pioneer。当词前有序数词或最高级修饰时，多用动词不定式而非分词短语作定语。output/atpt/n.产量；输出(反义词：input)strain/streIn/n.(植物的)品种；种类crop/krp/n.庄稼；农作物；产量makes it possible是“make宾语宾补”结构，其中，it是形式宾语，真正的宾语是to produce 20% more of t

15、he crop in the same fields。过去分词短语produced in China作后置定语，修饰rice。动名词短语finding ways to grow more rice在句中作主语，动词不定式短语to grow more rice作定语，修饰ways。hunger/h/n.饥饿；欲望 vt.&vi.(使)饥饿have a strong hunger for sth.有得到某物的强烈欲望disturbing/dIstbI/adj.引起烦恼的；令人不安的expand/Ikspnd/vt.&vi.使变大；伸展过去分词increased作定语，修饰harvests。circulate/skjleIt/vt.&vi.循环；流传circulate knowledge传播知识Vietnam/vjetnm/n.越南(东南亚国家)thanks to幸亏；由于；因为battle/btl/n.战役；战斗；较量；斗争 vt.&vi.搏斗；奋斗rid .of使摆脱或除去rid/rId/vt.摆脱；除去现在分词短语using his hybrid rice作原因状语。twice as large as 的两倍大造福全人类的先驱第12段译文尽管他是中国最著名的科学家