Nobody likes insects. They are annoying and sometimes dangerous. Some of them bite us and give us 51 ; others bite us and give us big red 52 . Some do not bite, 53 they just fly round our heads or crawl round our houses and gardens. And we do not like any of them 54 those lovely butterflies.
But insects are interesting. First, they are very 55 animals. Three hundred and twenty million years ago there were no men or other mammals in the world but there were insects. Today, 56 every square mile of land there are millions of them flying and crawling 57 . Second, insects are very adaptable to their habitat, to their food and to the weather. Now there are about a million different 58 in the world.
59 do people use insecticides?
Not many insects 60 us. In many cases we do not see the insects and we do not think much about them. The reason is that insects eat 61 of mans food, 62 there are so many billions of them.
We must use insecticides to get rid of them. An insecticide is simply a special chemical 63 with some poisonous elements. Farmers spray their crops very often and the insects die quickly. Of course some poisonous chemicals may 64 on the crops or in the 65 , and that is also dangerous.
51. A. wounds B. diseases C. disturbance D. panic
52. A. places B. points C. spots D. stains
53. A. because B. but C. or D. while
54. A. besides B. let alone C. except for D. except
55. A. old B. young C. small D. weak
56. A. on B. throughout C. with D. up
57. A. over B. above C. about D. up
58. A. species B. samples C. models D. specimens
59. A. When B. How C. Where D. Why
60. A. kill B. wound C. hurt D. pin
61. A. so many B. so little C. so few D. so much
62. A. so that B. due to C. and D. and owing to
63. A. medicine B. component C. compound D. material
64. A. drop B. stay C. evaporate D. leave
65. A. soil B. dirt C. clay D. mud
参考答案
51. B 52. C 53. B 54. D 55. A 56. A 57. C 58. A 59. D 60. C 61.D 62. C 63. C 64. B 65. A
悼念亡妻 九旬老人作诗感动世界
6步骤轻松打造完美商务邀请函
美副总统拜登之子涉嫌吸毒被海军除名
约会时我们这样发短信,结婚后我们这样发
爱德华·斯诺登神秘女友亮相
英国NHS计划奖励减肥者
打字风格可揭露你的情绪
房主欲用别墅换iPhone6 买家还价5代行不
造福社会影响文明 你不必与科技为敌
哈里斯将担任奥斯卡主持人
诺基亚手机改名微软Lumia
这款瑜伽垫凭什么卖300美元 它号称能让你的姿势更完美
奥巴马下馆子刷卡遭拒 被疑信用卡欺诈
逃犯嫌照片不帅 警察:你来,我给你拍个新的
赶飞机神器:滑板车行李箱
回国赚钱更容易 温州小镇的弃欧海归
天冷要抱抱:秋天更容易结束单身
新药可能让斑秃患者毛发再生
寸步难行 英国男子对电磁波过敏
十八届四中全会公报全文要点(双语)
学渣福音:数学APP拍照就出答案
李克强总理在第十届亚欧首脑会议第一次全会上的发言
埃博拉病毒造型毛绒玩具在美热卖
男孩动物园喂食黑熊 被咬断手臂
苹果公司新品发布 iPad Air 2领衔
可再生能源革命挑战行业旧秩序
凯特王妃明年4月生二胎
麻醉药帮助我们理解什么是意识
年轻的公司值得你去吗?
“刀锋战士”杀女友案宣判 入狱5年
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |