新人教版英语高二上module6unit4globalwarming同步测试内容摘要:

heart cells, and so onin much the same way our bodies make new skin cells to take the place of old ones. It is exciting to imagine that the advance in technology may be changing the most basic conditional human existence, but many technical problems still must be cleared up on the way to this wonderful future. 40. According to the passage, human death is now mainly caused by _______. A. diseases and aging B. accidents and war C. accidents and aging D. heart diseases and war 41. In the author39。 s opinion, today39。 s most important advance in technology lies in _____. A. medicine B. the inter C. brain cells D. human ans 42. Humans may live longer in the future because ______. A. heart disease will be far away from us B. human brains can decide the final death C. the basic materials of cells will last forever D. human ans can be repaired by new medicine 43. We can learn from the passage that _____. A. human life will not last more than 120 years in the future B. human have to take medicine to build new skin cells now C. much needs to be done before humans can have a longer life D. we have already solved the technical problems in building new cells. C Avocados are large, heavy, dark green fruits that are usually shaped like pears. The riper they get, the softer they get. People eat avocados in salads and sandwiches. But probably the most popular way to use avocados is in guacamole, a delicious Mexican snack(小吃 ). Inside the fruit is a very large seed(种子 ), which you can use to grow a tall, beautiful avocado plant. 1. Wash the avocado seed with cold water. Stick four toothpicks around the middle of the seed. 2. Fill the jar almost to the top with water that is just slightly warm. Rest the toothpicks on the top of the jar. The more pointed end of the seed should be in the water while the flatter end should face upward. 3. After that, you will have to wait for three or four weeks. During that time, be sure to add just enough water to replace the water that evaporates into the air. The bottom of the seed should always be just below the water’s surface. The thin brown skin that covers the seed will crack(破裂 ) open. Roots will start growing out of the bottom of the seed. Leaves will start growing at the top. 4. When the roots are about three inches long, fill a flowerpot with soil and plant the seed. Make sure that the seed is pletely covered by soil and that the young leaves are above the soil. 5. Find a sunny spot for the plant. Water it every few days to keep the soil moist (潮湿的 ). Watch it during the next few months. Your avocado plant will grow a tall, straight stem (茎 ) and large oval leaves. 44. The main idea of the first paragraph is to ______. A. tell us how to grow an avocado plant B. give us a brief introduction to avocados C. tell us the shape and color of avocados D. tell us that avocado is a fruit 45. Which of the following statements is NOT true according to the passage? A. The two points of the seed are of the same shape. B. The soil in the flowerpot should neither too dry nor too wet. C. We’d better use ripe avocados to make some guacamole. D. The most popular way to use avocados is in guacamole. 46. The word “evaporates” in the fourth paragraph means _______. A. turns into ice because of cold weather B. bees very hot by the sun heat C. turns into other things because of chemical change D. bees vapor and disappear 47. How long will the thin brown skin that covers the seed crack open? A. 1 or 2 weeks. B. 2 or 3 weeks. C. 3 or 4 weeks. D. a few days. D The scientist from the Lockheed Space Company work in Felton, California, with the help of a puter. But the puter is placed in Sunnyside, about 80 kilo。
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