【正文】 cult for her to go to ．WhatB．a(chǎn)sC．whichD．where most important thing ____ we should pay attention to is the first thing ____ I have , , , , that weather turned out to be very good, ____ was more than we could houses are sold at such a low price ____ people this the factory ____ we visit the other day? 第五篇：高中英語必修四 unit2 課文原文A PIONEER FOR ALL PEOPLE Although he is one of China39。s most famous scientists, Yuan Longping considers himself a farmer, for he works the land to do his , 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 Yuan Longping grows what is called super hybrid 1974, he became the first agricultural pioneer in the world to grow rice that has a high special strain of rice makes it possible to produce onethird more of the crop in the same more than 60% of the rice produced in China each year is from this hybrid into a poor farmer39。s family in 1930, Dr Yuan graduated from Southwest Agricultural College in then, finding ways to grow more rice has been his life a young man, he saw the great need for increasing the rice that time, hunger was a disturbing problem in many parts of the Yuan searched for a way to increase rice harvests without expanding the area of the 1950, Chinese farmers could produce only fifty million tons of a recent harvest, however, nearly two hundred million tons of rice was increased harvests mean that 22% of the world39。s people are fed from just 7% of the farmland in Yuan is now circulating his knowledge in India, Vietnam and many other less developed countries to increase their rice to his research, the UN has more tools in the battle to rid the world of his hybrid rice, farmers are producing harvests twice as large as Yuan is quite satisfied with his , he doesn39。t care about being feels it gives him less freedom to do his would much rather keep time for his enjoys listening to violin music, playing mahjong, swimming and money on himself or leading a fortable life also means very little to , he believes that a person with too much money has more rather than fewer therefore gives millions of yuan to equip others for their research in dreaming for things, however, costs ago Dr yuan had a dream about rice plants as tall as ear of rice was as big as an ear of corn and each grain of rice was as huge as a Yuan awoke from his dream with the hope of producing a kind of rice that could feed more , many years later, Dr Yuan has another dream: to export his rice so that it can be grown around the dream is not always enough, especially for a person who loves and cares for his OR ORGANIC FARMING?Over the past half century, using chemical fertilizers has bee very mon in farmers weled them as a great way to stop crop disease and increase , however, scientists have been finding that longterm use of these fertilizers can cause damage to the land and, even more dangerous, to people39。s 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 also stay in the ground and underground water for a long affects crops and, therefore, animals and humans, since chemicals get inside the crops and cannot just be washed chemicals in the food supply build up in people39。s bodies over of these chemicals can lead to cancer or other addition, fruit, vegetables and other food grown with chemical fertilizers usually grow too fast to be full of much may look beautiful, but inside there is usually more water than vitamins and these discoveries, some farmers and many customers are beginning to turn to organic farming is simply farming without using any focus on keeping their soil rich and free of healthy soil reduces disease and helps crops grow strong and farmers, therefore, often prefer using natural waste from animals as feel that this makes the soil in their fields richer in minerals and so more also keeps the air, soil, water and crops free from farmers also use many other methods to keep the soil often change the kind of crop in each field every few years, for example, growing corn or wheat and then the next year peas or 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 farmers also plant crops to use different levels of soil, for example, planting peanuts that use the ground39。s surface followed by vegetables that put down deep organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil, and then leaving it in the ground to bee a natural fertilizer for the next year39。s many different organic farming methods have the same goal: to grow good food and avoid damaging the environment or people39。s health.