Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need
A. agree B. suffer C. system D. notice AB. through AC. dangerous AD. space BC. limited BD. absorbs CD. let out |
For years scientist have been worried about the effects of air pollution on the earth’s natural conditions. Some believe the air inside many houses may be more 41 than the air outside. It may be one hundred times worse.
Indoor air pollution can cause a person to feel tired, to 42 eye-pain, headache and other problems. Some pollutants can cause breathing disorders, diseases of blood and even cancer. Most scientists 43 that every modern house has some kind of indoor pollution. People began to 44 the problem in the early 1970s, when it was that builders began making houses and offices which did not waste energy. To do this they built buildings that 45 the flow of air between inside and outside. They also began using man-made building materials. These materials are now known to 46 harmful gases. As the problem became more serious, scientists began searching for a way to deal with it. They discovered a natural pollution control 47 for building green plants. Scientist do not really know how plants control air pollution. They believe that a plant’s leaves take in the pollutants. In exchange the plant produces oxygen 48 its leaves and through its tiny organizations on its roots. Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square meters of space. Studies of different plants show that each 49 different chemicals. So the most effective way to clean the air is to use different kinds of plants. Having green plants inside your house can make it a prettier and healthier place.
.你班学生最近就中学生是否应该进行军训这一话题展开了讨论。请根据下表写一篇100字左右的英语短文投稿给学校广播站。
反对意见 | 赞成意见 | 你的意见 |
九月份重庆天气仍很炎热; 学生身体单薄,无法坚持大运动量的训练。 | 军训是国防教育的重要内容; 是锻炼学生个人素质的最佳方式。 | …… |
注意:
短文的开头已为你写好,不计入总词数。
文章中不能出现真实的个人和学校信息,否则按零分计。
参考词汇:
军事训练—military training; 国防教育—the education of national defense
There has been a heated discussion about whether we high school students should take the military training in my class.