1、课时作业(八) Word power & Grammar and usage.单词拼写1The_(原来的，起初的)picture is worth 1,000 dollars.2I felt completely unable to come to any_(看法)about it at all.3Medicine is my brothers favorite _( 职业)4Scientists have made a _(突破) in their treatment of that disease.5There are much _(辐射)harmful to our health.6It
2、 was impolite of him to _(举止)like that.7Her _(同事)share her interest in computers.8The police prevent and detect _(犯罪活动) 9I have _(计算)out how much during the week I spent.10They were _(评论 )on her new clothes.单项填空1Lucy was copletely _ after jogging in the hot sun all afternoon；she had little energy le
3、ft.Akicked out Bburnt outChanded out Dput out2(2013保定高二检测)_from media reports ，the result has been unclear.ATo judge BHaving judgedCJudging DJudged3To our joy， there are so many _ in science and technology all over the world in recent years.Adiscover BbreakthroughsCfindings Dinvention4Its reported t
4、hat some visitors to Hong Kong Disneyland didnt keep to the rules and _ improperly.Adid BbehavedCproved Dimpressed5Sam couldnt _ how to print out the document until the teacher showed it to him.Ago through Bfigure outCcome up Dget over6I dont like Jackhe _ about this or that.Im tired of it!Ais alway
5、s complainingBis complainingCcomplainsDhas complained7You must have met him the other day.Oh，no，I _.Adidnt BhaventChadnt Dmustnt8There are many pieces and all are necessary and must be _.Aput in order Bput into practiceCput in place Dput into power9_ worries me the way he keeps changing his mind.ATh
6、is BThatCWhat DIt10_ an important role in a new movie，Andy has a chance to become famous.AOffer BOfferingCOffered DTo offer11Michael put up a picture of Yao Ming beside the bed to keep himself _ of his own dreams.Areminding Bto remindCreminded Dremind12(2013芜湖高二调研)Chaire had her luggage _ an hour be
7、fore her plane left.Acheck BcheckingCto check Dchecked13The railway station，please.I have to be there in ten minutes._， but Ill do my best.ANo problem BOKCI cant promise DI cant do that14Please remain _；the winner of the prize will be announced soon.Aseating BseatedCto seat Dto be seated15A cool rai
8、n was falling ，_ with snow，causing heavy traffic.Amixed BmixingCto mix Dhaving mixed.完形填空Mr.Flowers spent all his spare time on one of his four glasshouses，and flowers were his main joy in life.His glasshouses were very _1_ a public path which was always used by children and young people _2_ to and
9、from school.Boys of about thirteen years of age，in _3_，would throw a stone or two at one of Mr.Flowers_4_.They _5_ to resist(抵抗)the temptation(诱惑)when Mr.Flowers was _6_，but the temptation was often too strong when Mr.Flowers was _7_ to be seen.For this _8_，Mr.Flowers did his best to be in or close
10、to his glasshouses at the beginning and the end of the _9_ days.Mr.Flowers had tried in many _10_ to prevent damage to his glasshouses，but nothing he had done had been _11_.Then，just as he was giving up the _12_ of winning the children，he had a truly wonderful _13_._14_ of growing the roses of the y
11、ear， he put _15_ a large notice made of wood，_16_ wood，some meters away from the glasshouses where it could be _17_ seen from the path.He had painted on the board the _18_：DONT THROW STONES AT THIS _19_.After this，Mr.Flowers has no further _20_：the boys would throw stones at the notice rather than a
12、t the glasshouses.1A.close to Bfar awayCout of Daside2A.came BwalkingCdriving Dwent3A.fact BtimeCparticular Dall4A.children BflowersCgardens Dglasshouses5A.managed BsuggestedCconsidered Dkept6A.free BaboutCbusy Dout7A.somewhere BanywhereCeverywhere Dnowhere8A.part BresultCreason Dtemptation9A.rainy
13、BwarmCwinter Dschool10A.ways BtimesCplaces Ddirections11A.done BsuccessfulCworked Dhelpless12A.hope BpracticeCsight Dcourage13A.advice BboardCmind Didea14A.Fond BBecauseCInstead DAfraid15A.on BoutCup Daway16A.strong BthinClittle Dlarge17A.hardly BstillCclearly Dpossibly18A.sentences BwordsCletters D
14、expressions19A.GLASSHOUSE BLANDCPATH DNOTICE20A.work BtroubleCbattle Dtime.阅读理解Since the gene，called DAF 16 in worms，was found in many animals and in humans，the finding could open up new ways to affect aging，immunity(免疫)and resistance in humans，the scientists said.“We wanted to find out how normal a
15、ging is being governed by genes and what effect these genes have on other traits， such as immunity， ”said Robin May of the University of Birmingham，who led the study.Populations across the world are aging at a surprising pace，bringing potentially big challenges for health and social care systems.A s
16、tudy by Danish scientists last year found that half of babies born in the rich world today will live to celebrate their 100th birthdays.Scientists are eager to find out how people age to try to develop drugs to help them stay healthier as their lives extend.“What we have found is that things like re
17、sistance and aging tend to go hand in hand， ”May said in an interview.Mays team compared longevity，stress resistance and immunity in four related species of worm.They also looked for differences in the activity of DAF 16 in each of the four species，and found that they were all quite distinct.May sai
18、d DAF 16 was active in most cells in the body and was very similar to a group of human genes called FOXO genes，which scientists believe play a role in the aging process.“The fact that subtle(微妙的 )differences in DAF 16 between species seem to have such an impact on aging and health is very interestin
19、g and may explain how differences in lifespan and related traits have arisen during evolution， ”May said.1In which section may the text appear in a newspaper?AEducation. BScience.CEntertainment. DCulture.2According to May，_.Aresistance has a lot to do with agingBFOXO genes can be found in wormsCgene
20、s play the same role in different speciesDnew drugs will change the genes in older people3What can we know from the third paragraph?ANew ways have been found to affect aging.BBabies in the rich world will all live longer.CPresent social care systems are poorly managed.DAging populations are causing
21、more challenges.4From the text we know that DAF 16 _.Ais a gene that is only found in wormsBcan make people live longerChas an effect on aging and immunityDhas been quite familiar to scientists5What can be the BEST title of the passage?AScientists Find Gene Linked to AgingBPopulation Aging Faster than ExpectedCHow to Make People Live LongerDGene Determines How Long We Live
