《江西省萍乡市芦溪中学人教高中英语必修四：Unit 2 第一课时 精读课 练案 .doc》由会员分享，可在线阅读，更多相关《江西省萍乡市芦溪中学人教高中英语必修四：Unit 2 第一课时 精读课 练案 .doc（3页珍藏版）》请在金锄头文库上搜索。
1、新课程标准高中英语必修四Unit 2 Working the land第一课时 精读课 练案A组练习课文填空。Im Yuan Longping. Look at my 1 face and arms and my slim, strong body and you will think Im more like a 2 than a scientist. In fact I have struggled for the past five 3 to help farmers. In 1974, I began to grow a so-called super hybrid rice. Thi
2、s special strain of rice makes 4 possible to produce one-third more of the crop in the same fields.I was born into a poor farmers family in 1931. When I was young, I saw many people go 5 often. So I have devoted myself to finding ways to increase rice harvest without expanding the area of fields sin
3、ce I 6 from Southwest Agriculture College in 1953. Now more than 60 % of the rice produced in China each year is from this hybrid strain. I am 7 this knowledge in India, Vietnam and other less developed countries to increase their harvest. Perhaps you think I am rich. Actually I live a simple life.
4、I care 8 for money. In my opinion a person with too much money will have 9 troubles. I dont want to be famous because I prefer to have more time to do my research. In my free time I love listening to music, playing mah-jong and reading. I once had a dream, in which I saw rice plants as tall as sorgh
5、um and each ear of rice was as big as an ear of corn and each grain of rice was as huge as a peanut. Now I have another dreamto 10 my rice so that it can be grown all over the world.B组练习1阅读下列短文，选择最佳答案。If you want your land to keep fertile, you must try to stop soil from being carried away by water o
6、r wind. When soil is taken away by flowing water or blowing winds we call it soil erosion. Ways have been found to stop soil erosion, and this is known as soil conservation. One way of stopping soil erosion is to grow small plants such as grass. These plants are referred to a cover crops, whose root
7、s hold the soil tightly together. The rain water can not wash away the soil. When trees and tall bushes are planted at the edges of an open field, soil erosion by strong winds can not take place. The trees and bushes, which act as a very big and firm wall, protect the open land from the winds. The w
8、ay to stop soil erosion on slopes is to build terraces on the slope of hillside and mountainside. When the slope of a hillside is cut into “step”, water carrying soil can not run straight down the terraces, which are used to slow down the speed of the flowing water containing much soil in it. In thi
9、s way most of the soil in the water is left behind on the terraces, much soil in it.1）What takes place in soil erosion?A. Flood happens to the fertile land . B. A large quantity of the soil loses away gradually.C. Terraces are built on the slope of hillside or mountainside.D. Plants are grown to pro
10、tect the open land.2）“Cover crops” in this passage means _?A. grass B. trees and bushes C. plants life and an areaD. covering plants that produce grain or vegetables3）Besides growing small plants, another method to fight against soil erosion is to _.A. build terraces B. build walls C. plant trees D.
11、 plant tall bushes4）According to the passage, trees and tall bushes are planted around an open field _.A. because their roots hold soil tightly B. to stop soil from being blown away by winds.C. Because soil erosion causes terrible damages to crops D.T o keep the balance of nature5）Which of the follo
12、wing is the best title of the passage?A. What Causes Soil Erosion B. The Importance of ErosionC. Rain Erosion and Wind Erosion D. Erosion and the Way of Fight against Erosion2阅读表达 阅读下面短文，并根据要求完成文章后的题目。When your family travels or is away from its usual eating and sleeping routines, probably someone w
13、ill get sick. It can take time to adapt to the food, water and air in a new environment, and kids can be especially _ travel-related problems, including motion sickness, diarrhea（腹泻），and infections（传染病）. Motion sickness is caused by a disagreement between the eyes and ears: the inner ears notice mov
14、ement. But the eyes, focused within a car or other vehicles, do not. These different signals coming into the brain cause a lot of problems such as sickness, dizziness, paleness, and cold sweats. Motion sickness often happens on ships and boats, but it can also affect kids when they travel in planes,
15、 buses, and cars. Here are some ways to help kids fight motion sickness:Before you leave, have your child eat a light meal, as motion sickness seems worse on an empty stomach. Provide foods that are easily digested and avoid fatty foods.Try to avoid eating during short trips. For longer trips, have a small amount of drinks and eat light, small meals and snacks.If your child is feeling sick, provide some mild foods, like crackers（超薄饼干）.Encourage kids to look outside the car, rather than inside. They should focus on still objects-not mov
