1、2021高考英语短文故事精读与语法填空训练（十七）一：语法填空训练Why, you may wonder, should spiders be our friends? Because they destroy so many insects, and insects include some of the (great) enemies of the human raceInsects would make impossible for us to live in the world; they would devour all our crops and kill our flocks a
2、nd (herd), if it were not for the protection we get from insect-eating animalsWe owe a lot to the birds and beasts who eat insects but all of them put together kill only a fraction of the number destroyed by spidersMoreover, unlike some of the other insect eaters, spiders never do the least harm to
3、us or our (belong).Spiders are not insects, many people think, nor even nearly related to themOne can tell the (different) almost at a glance, for a spider always has eight legs and an insect never more than six.How many spiders are (engage) in this work on our behalf? One authority on spiders made
4、a census of the spiders in a grass field in the south of England, and he estimated there were more than 2,250,000 in one acre; that is something like 6,000,000 spiders of different kinds on a football pitchSpiders are busy for at least half the year in (kill) insectsIt is impossible to make more tha
5、n the wildest guess at how many they kill, but they are hungry creatures, not content only three meals a dayIt has been ( estimate) that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the total weight of all the human beings in the country.二：词句短语长难句释义
6、Why, you may wonder, should spiders be our friends? Because they destroy so many insects, and insects include some of the greatest enemies of the human raceInsects would make it impossible for us to live in the world; they would devour all our crops and kill our flocks and herds, if it were not for
7、the protection we get from insect-eating animalsWe owe a lot to the birds and beasts who eat insects but all of them put together kill only a fraction of the number destroyed by spidersMoreover, unlike some of the other insect eaters, spiders never do the least harm to us or our belongings.Spiders a
8、re not insects, as many people think, nor even nearly related to themOne can tell the difference almost at a glance, for a spider always has eight legs and an insect never more than six.How many spiders are engaged in this work on our behalf? One authority on spiders made a census of the spiders in
9、a grass field in the south of England, and he estimated that there were more than 2,250,000 in one acre; that is something like 6,000,000 spiders of different kinds on a football pitchSpiders are busy for at least half the year in killing insectsIt is impossible to make more than the wildest guess a
10、t how many they kill, but they are hungry creatures, not content with only three meals a dayIt has been estimated that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the total weight of all the human beings in the country.1：将标记的词汇短语释义1. 2. 3. 4. 5. 6.
11、 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 2：长难句分析释义 三：文意梳理你可能会觉得奇怪，蜘蛛怎么会是我们的朋友呢？因为它们能消灭那么多的昆虫，其中包括一些人类的大敌。要不是人类受一些食虫动物的保护，昆虫就会使我们无法在地球上生活下去，昆虫会吞食我们的全部庄稼，杀死我们的成群的牛羊。我们要十分感谢那些吃昆虫的鸟和兽，然而把它们所杀死的昆虫全部加在一起也只相当于蜘蛛所消灭的一小部分。此外，蜘蛛不同于其他食虫动物，它们丝毫不危害我们和我们的财物。许多人
12、认为蜘蛛是昆虫，但它们不是昆虫，甚至与昆虫毫无关系。人们几乎一眼就能看出二者的差异，因为蜘蛛都是8条腿，而昆虫的腿从不超过6条。有多少蜘蛛在为我们效力呢？一位研究蜘蛛的权威对英国南部一块草坪上的蜘蛛作了一次调查。他估计每英亩草坪里有225万多只蜘蛛。这就是说，在一个足球场上约有600万只不同种类的蜘蛛。蜘蛛至少有半年忙于吃昆虫。它们一年中消灭了多少昆虫，我们简直无法猜测，它们是吃不饱的动物，不满意一日三餐。据估计，在英国蜘蛛一年里所消灭昆虫的重量超过了这个国家人口的总重量。四：语法填空练习Air purifiers(净化器) do more than clean the air in your
13、 house.It is one of the best 1(tool)that can improve your sleep.However,only clean air purifiers can help you sleep 2(peaceful).Air purifiers 3 blocked filters(过滤器) may produce a loud noise.That will never make you fall asleep.Instead,it will wake the person 4 is trying to sleep in the next room.Mak
14、e sure you clean the filters of the air purifiers frequently so that they dont just purify the air,but also avoid 5(produce) any uncomfortable noise.At the same time,check them frequently to ensure that they 6(be) in proper working order.You can either clean the filters alone or ask a professional t
15、o do it for you.For DIY cleaning,you can go online and search for 7(person) care user manuals (指南)to know 8 to take apart the filters and clean them.It is possible to use a vacuum cleaner to suck the dust 9(attach )to the filters.For some air purifiers,the filters can 10 (take) out.You can clean the
16、m using liquid soap,and put them back in the purifiers again.1.tools考查名词。句意:这是改善睡眠的最佳工具之一。the best为形容词最高级,修饰名词,设空处需填名词,tool意为“工具”,是可数名词,one of后面需加可数名词复数形式。故填tools。2.peacefully考查副词。句意:然而,只有清洁的空气净化器才能帮助你平静地入睡。设空处修饰动词sleep,需填副词。故填peacefully。3.with考查介词。句意:过滤器堵塞的空气净化器可能会产生很大的噪音。设空处需填介词“带有,具有”,故填with。4.wh
17、o/ that考查定语从句。句意:相反,它会吵醒隔壁房间试图入睡的人。设空处引导定语从句,从句缺少主语,需用关系代词引导,先行词是person,指人,需用关系代词who/that。5.producing考查非谓语动词。句意:确保你经常清洁空气净化器的过滤器,这样它们不仅能净化空气,还能避免产生任何令人不舒服的噪音。avoid doing sth为固定用法,故填producing。6.are考查时态和主谓一致。句意:同时,要经常检查,确保其工作状态正常。设空处缺少谓语动词,此处陈述客观事实,需用一般现在时,主语为they,谓语动词需用复数形式。故填are。7.personal考查形容词。句意:对
18、于DIY清洁,你可以上网搜索个人护理用户手册,了解如何拆卸和清洁过滤器。设空处修饰名词care user manuals,需用形容词作定语。故填personal。8.how考查不定式的复合结构。设空处构成不定式的复合结构,需用副词how作方式状语。故填how。9.attached考查非谓语动词。句意:可以用真空吸尘器吸附在过滤器上的灰尘。已有谓语动词,设空处需填非谓语动词作后置定语,be attached to为固定短语,意为“依附在”;此处需填过去分词形式。故填attached。10.be taken考查被动语态。情态动词can后面需加动词原形,主语the filters和take为被动关系,需用被动语态。情态动词can的被动语态形式是:can be done。故填be taken。
