福建省三明市泰宁第一中学2019_2020学年高二英语上学期校本作业三202008280212.doc
福建省三明市泰宁第一中学2019_2020学年高二英语上学期校本作业打包10套
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福建省
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福建省三明市泰宁第一中学2019_2020学年高二英语上学期校本作业打包10套,福建省,三明市,泰宁,第一,中学,2019,_2020,年高,英语,学期,校本,作业,打包,10
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福建省三明市泰宁第一中学2019-2020学年高二英语上学期校本作业（三）for the first time,researchers have discovered that some plants can kill insects in order to get additional nutrients.new research shows that they catch and kill small insects with their own sticky hairs near the roots and then absorb nutrients through their roots when the insects are killed and fall to the ground.professor mark chase,of kew and queen mary,university of london,said,“the cultivated(培植的) tomatoes and potatoes still have the hairs.tomatoes in particular are covered with these sticky hairs.they do trap small insects on a regular basis.they do kill insects.”the number of these carnivorous plants is thought to have come up to 50 percent and many of them have until now been wrongly regarded as among the most harmless plants.among them are species of petunia(矮牵牛),some special tobacco plants and cabbages,some varieties of potatoes and tomatoes,etc.researchers at royal botanical gardens,kew,which carried out the study,now believe there are hundreds more killer plants than previously realized.it is thought that the technique was developed in the wild to get necessary nutrients in poor quality soiland even various plants grown in your vegetable garden still have the ability.the researchers,publishing their finding in the botanical journal of the linnean society,said,“we may be surrounded by many more murderous plants than we think.”“we are accustomed to thinking of plants as being immobile and harmless,and there is something deeply frightening about the thought of meat-eating plants,”they added.25tomatoes and potatoes kill insects to .a.get more sticky hairsb.make themselves grow betterc.make their roots strongerd.avoid falling down to the ground答案：b解析：推理判断题。由文章第一段指出,一项研究表明一些植物能够用它们根部的粘毛杀死小昆虫,吸收更多的营养,故b项正确。26the word“carnivorous”in paragraph 3 most probably means “”.a.fast-growing b.harmlessc.insect-killingd.nutritious答案：c解析：词义猜测题。根据第二段的内容和第三段的首句可知,画线词指的是能够杀死昆虫的,故c项正确。27the insect-killing technique of vegetables is developed most probably through .a.evolution of speciesb.help from other garden plantsc.artificial cultivationd.nutrients preserved in rich soil答案：a解析：推理判断题。根据第四段的内容可推知,这种植物杀死昆虫的技巧的发展主要靠野外的自然进化,即物种进化,故a项正确。28the text is probably taken from .a.a student bookb.science fic
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