完整版人教版英语必修四课文电子版docx.docx

1、完整版人教版英语必修四课文电子版docxUnit 1 Women of achievementReadingA STUDENT OF AFRICAN WILDLIFEIt is 5:45 am and the sun is just rising over Gombe National Park in East Africa.Following Jane s way of studying chimps, our group are all going to visit them in the forest. Jane has studied these families of chimps

2、for many years and helped people understand how much they behave like humans. Watching a family of chimps wake up is our first activity of the day. This means going back to the place where we left the family sleeping in a tree the night before. Everybody sits and waits in the shade of the trees whil

3、e the family beings to wake up and move off. Then we follow as they wander into the forest. Most of the time, chimps either feed or clean each other as a way of showing love in their family. Jane warns us that our group is going to be very tired and dirty by the afternoon and she is right.However, t

4、he evening makes it all worthwhile. We watch the mother chimp and her babies play in the tree. Them we see them go to sleep together in their nest for the night. We realize that the bond between members of a chimp family is as long as in a human family.Nobody before Jane fully understood chimp behav

5、iour. She spent years observing and recording their daily activities. Since her childhood she had wanted to work with animals in their own environment. However, this was not easy. When she first arrived in Gombe in 1960, it was unusual for a woman to live in the forest. Only after her mother came to

6、 help her for the first few months was she allowed to begin her project. Her work changed the way people think about chimps. For example, one important thing she discovered was that chimps hunt and eat meat. Until then everyone had thought chimps ate only fruit and nuts. She actually observed chimps

7、 as a group hunting a monkey and then eating it. She also discovered how chimps communicate with each other, and her study of their body language helped her work out their social system.Four forty years Jane Goodall has been outspoken about making the rest of the worldunderstand and respect the life

8、 of these animals. She has argued that wild animals should beleft in the wild and not used for entertainment or advertisements.She has helped to set upspecial places where they can live safely.She is leading a busy life but she says: Once I“stop, it all comes crowding in and I remember the chimps in

9、 laboratories. It s terrible.Itaffects me when I watch the wild chimps.I say to myself, Aren t theyAndluck?then Ithink about small chimps in cages though they have done nothing wrong. Once you haveseen that you can never forget ”She has achieved everything she wanted to do: working with animals in t

10、heir ownenvironment, gaining a doctor s degree and showing that womeniveinthecanforestl as men can. She inspires those who want to cheer the achievement of women.Using languageWHY NOT CARRY ON HER GOOD WORD?I enjoyed English, biology, and chemistry at school, but which one should I choose to study a

11、t university? I did not know the answer until one evening when I sat down at the computer to do some research on great women of China.By chance I came across an article about a doctor called Lin Qiaozhi, a specialist in women s diseases. She lived from 1901 to 1983. It seemed that she had been very

12、busy in her chosen career, traveling abroad to study as well as writing books and articles. One of them caught my eye. I was a small book explaining how to cut the death rate from having and caring for babies. She gave some simple rules to follow for keeping babies clean, healthy and free from sickn

13、ess. Why did she write that? Who were the women that Lin Qiaozhi thought needed this advice？ I looked carefully at the text and realized that it was intended for women in the countryside. Perhaps if they had an emergency they could not reach a doctor.Suddenly it hit me how difficult it was for a wom

14、an to get medical training at that time.That was a generation when girl s education was always placed secondWastoboysshe so .much cleverer than anyone else? Further reading made me realize that it was hard work anddetermination as well as her gentle nature that got her into medical school. What made

15、 hersucceed later on was the kindness and consideration she showed to all her patients. Therewas story after story of how Lin Qiaozhi, tired after a day s work, went late at night to delia baby for a poor family who could not pay her.By now I could not wait to find out more about her. I discovered t

16、hat Lin Qiaozhi haddevoted her whold life to her patients and had chosen not to have a family of her own.Instead she made sure that about 50,000 babies were safely delivered. By this time I wasvery excited. Why not study at medical college like Lin Qiaozhi and carry on her good work?It was still not

17、 too late for me to improve my studies, prepare for the university entranceexaminations, and Unit 2Working the landA PILNEER FOR ALL PEOPLEAlthough he is one of China s most famous scientists, Yuan Longping considersimelfa hfarmer, for he works the land to do his research. Indeed, his sunburnt face

18、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. Dr Yuan Longping grows what is called super hybrid rice. In 1974, he became the first agricultural pioneer in the world to grow rich that has a high output. Thi

19、s special strain of rice makes it possible to produce one-third 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, Dr Yuan graduated from Southwest Agricultural College in 1953. Since then, finding ways to grow more

20、 rice has been his life goal. As a young man, he saw thegreat need for increasing the rice output. At that time, hunger was a disturbing problem in many parts of the countryside. Dr Yuan searched for a way to increase rice harvests without expanding the area of the fields. In 1950, Chinese farmers c

21、ould produce only fifty million tons of rice. In a recent harvest, however, nearly two hundred million tons of rice wasproduced. These increased harvests mean that 22% fo the world s people are fed from just 7% of the farmland in China. Dr Yuan is now circulating his knowledge in India, Vietnam and

22、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 before.Dr Yuan is quite satisfied with his life. However, he doesn t ca

23、re about being famous.He feels it gives him less freedom to do his research. He would much rather keep time for his hobbies. He enjoys listening to violin music, playing mah-jong, swimming and reading. Spending money on himself or leading a comfortable life also means very little to him.Indeed, he b

24、elieves that a person with too much money has more rather than fewer troubles.He therefore gives millions of yuan to equip others for their research in agriculture.Just dreaming for things, however, costs nothing. Long ago Dr Yuan had a dream about rice plants as tall as a peanut. Dr Yuan awoke from

25、 his dream with the hope of producing a kind of rice that could feed more people. Now, many years later, Dr Yuan has another dream: to export his rice so that it can be grown around the globe. One dream is not always enough, especially for a person who loves and cares for his people.Using LanguageCH

26、EMICAL OR ORGANIC FARMING?Over the past half century, using chemical fertilizers has become very common in farming.Many farmers welcomed them as a great way to stop crop disease and increase production.Recently, however, scientists have been finding that long-term use of these fertilizers cancause d

27、amage to the land and, even more dangerous, to people s health.What are some of the problems caused by chemical fertilizers? First, they damage the land by killing the helpful bacteria and pests as well as the harmful ones. Chemicals alsostay in the ground and underground water for a ling time. This

28、 affects crops and, therefore, animals and humans, since chemicals get inside the crops and cannot just be washed off.These chemicals in the food supply build up in people ime. s Manybodiesofoverthesechemicals can lead to cancer or other illnesses. In addition, fruit, vegetables and other foodgrown

29、with chemical fertilizers usually grow too fast to be full of much nutrition. They may look beautiful, but inside there is usually more water than vitamins and minerals.With these discoveries, some farmers and many customers are beginning to turn to organic farming. Organic farming is simply farming

30、 without using any chemicals. They focus onkeeping their soil rich and free of disease. A healthy soil reduces disease and helps crops grow strong and healthy. Organic farmers, therefore, often prefer using natural waste from animals as fertilizer. They feel that this makes the soil in their fields

31、richer in minerals and so more fertile. This also keeps the air, water and crops free from chemicals.Organic farmers also use many other methods to keep the soil fertile. They often change the kind of crop in each field every few years, for example, growing corn or wheat and then the next year peas

32、or soybeans. Crops such as peas or soybeans put important minerals back into the soil, making it ready for crops such as wheat or corn that need rich and fertile soil. Organic farmers also plant crops to use different levels of soil, for example, planting peanutsthat use the ground s surface followed by vegetables that put down deepSrootsme.organic farmers prefer planting grass between crops to prevent wind or water from carrying away the s