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1、必修四Unit2 Using languageListening text: WHATS WRONG WITH THE VEGETABLES?Girl: Hey, Paul, listen to this a 1. _ article about a farmer 2._ used too much 3._ on his fields. When his vegetables were 4._, they were all found to be empty!BOY: Empty? Youre joking, Carrie that cant be true!Girl: I didnt bel
2、ieve it either! This article says this can happen sometimes with vegetables like cucumbers, carrots and pumpkins. This chemical fertilizer makes the vegetables 5._ fast to look big and beautiful, but theyre empty 6._! BOY: You know, Ive noticed that sometimes my mum buys carrots from the supermarket
3、 that have big holes down the center. I guess that must be from using chemical fertilizers! GIRL: Yeah, thats 7._ the magazine says! The main 8._ of the article, though, isnt about holes in our vegetables. Its talking about why the fruit and vegetables we eat today arent as 9._ as the ones our grand
4、parents ate.BOY: What? My mum is always telling me to eat more 10._ , because theyre good for me!GIRL: Yeah, I know my mother says that same thing! And its true -they are good for us but the problem is that they arent 11._ enough! All these chemical fertilizers they 12. _ both the bad and the good t
5、hings in the ground. The ground doesnt have enough 13. _ and minerals any more to help crops grow healthy.BOY: So if our fruit and vegetables 14._ with chemical fertilizers, they might look healthy, but 15._ arent really healthy? I guess weve got to stop using so many chemical fertilizers to grow ou
6、r food!CHEMICAL OR ORGANIC FARMING? Over the past half century, 1._(use) chemical fertilizers has become very 2._（普遍）in farming. Many farmers welcomed them 3._ a great way to stop crop disease and increase 4._（农作物）. Recently, however, scientists 5._（find）that6._（长期）use of these fertilizers can 7._（导
7、致，造成）the land and, 8._more dangerous, to peoples health. What are some of the problems caused by 9._（化肥）? First, they damage the land by killing the helpful 10._(病菌) and pests 11._（也，还，和）the harmful ones. Chemicals also stay in the ground and underground water for a long time. This 12._(affect) crop
8、s and, therefore, animals and humans, since chemicals get inside the crops and cannot just be washed off. These chemicals in the food supply 13._（堆积）in peoples bodies over time. Many of these chemicals can 14._（导致）cancer or other illnesses. 15._（另外）, fruit, vegetables and other food grown with chemi
9、cal fertilizers usually grow too fast to be full of much 16._（营养）. They may look beautiful, but inside there is usually more water than vitamins and 17._（矿物质）. With these 18._（发现）, some farmers and many customers are beginning to 19._（转向）organic farming. Organic farming is simply farming 20._ using
10、any chemicals. They 21._（关心）keeping their soil rich and free of disease. A healthy soil 22._（减少）disease and helps crops grow strong and healthy. Organic farmers, therefore, often 23._（更喜欢）using natural waste from animals as fertilizer. They feel that this 24._(make) the soil in their fields 25._（更富含
11、矿物质）and so more fertile. This also keeps the air, soil, water and crops 26._（不受）chemicals. Organic farmers also use many other methods 27._（保持土地肥沃）. They often change the kind of crop in each field 28._（每隔几年）, for example, growing corn or wheat and then the next year peas or soybeans. Crops such as
12、peas or soybeans put important minerals back into the soil, 29._（make）it ready for crops such as wheat or corn 30._need rich and fertile soil. Organic farmers also plant crops to use different levels of soil, for example, planting peanuts that use the grounds surface 31._(follow) by vegetables that
13、put down deep roots. Some organic farmers prefer 32._(plant) grass between crops to prevent wind or water from 33 ._(带走）the soil, and then 34._(leave) it in the ground to become a natural fertilizer for the next years crop . These many different organic farming methods have 35._（同样的目标）: to grow good
14、 food and avoid 36._(damage) the environment or peoples health.一用所给动词的适当形式填空1. Tom is very stubborn, so it is no use _ (argue) about it. 2. Kate couldnt help _ (jump)with joy on hearing the good news. 3. She was praised for _ (save)the life of the child. 4. I remember _ (take)to the zoo by my mother when I was a child. 5. They consider _ (go) to Hainan for the summer holiday. 6. This desk wants _ (repair). 7. I should say sorry to Tom, for I regret _ (refuse)to help him the other day. 8. _
