1、 wordUnit 2 Working the land.單項(xiàng)填空1The boy lay on his back，his teeth _ and his glaring eyes _.Aset；lookedBset；lookingCsetting；lookedDsetting；looking2People are struggling_ pollution.AforBagainstCtoDon3It is often said that _ teachers have _ very easy life.A/；/B/；aCthe；/Dthe；a4May I open the window to

2、 let in some fresh air?_ACome on.BTake care.CGo ahead!DHold on!5He expanded_ his new theory.AinBintoCaboutDon6Susan wanted to be independent from her parents.She tried _ alon，ebut she didnt like it and moved back home.AlivingBto liveCto be livingDhaving lived7.You were brave enough to raise objectio

3、ns at the meeting.Well，now I regret_ that.Ato doBto be doingCto have been doneDhaving done8Anything to say about the latest talk between the two countries?_ANo comment!BNothing to say.CI beg your pardon?DGo ahead.9The factory is equipped_ modern machinery and _ the most recenttechniques.Awith；usesBo

4、n；usingCby；useDinto；to use10 Its acknowledged that the traffic accident was largely_ thedrivers carelessness.Abecause ofBdue toCthanks toDwith a result of11For all these years I have been working for others.Im hoping Ill_my own business someday.1 / 5 Arefers to；goodBturns to；betterCsticks to；goodDle

5、ads to；better13If your wages are small，youll be free _ income tax.AwithBaboutCtoDof14_ in your class?15He will come tomorrow.But Id rather he _ the day after tomorrow.Awill comeBis comingA2 / 5 wordincreasingly being used to link adopted children with biological kin(親屬)The sitethat Funks and Ramirez

6、es used has a membership of 137 people，with 15 sets of twinsand 7 sets of siblings whose relationships have been confirmed.At a reunion at Chicagos OHare International Airport，Mia Diamond Funk andMia Hanying Ramirez shyly surveyed each othe，r and then reached for each othershand.DNA tests establish

7、an 85 percent probability that the girls are at leasthalfsisters.Scientists do not have a biological parent to test and reach a greatercertainty，but given their ages and physical similarities，experts say it is likelythey are fraternal twins.Douglas and Holly Funk hope to bring their Mia to Miami in

8、October.Both setsof parents say they are committed to staying in touch and often let the two sisterstalk to each other on the phone.16Both the adopted girls shared a first name _.Abecause they both came from ChinaBbecause of their physical similaritiesCbecause their US parents suspected they were tw

9、insDfor no good reason17Why did the girls mothers meet on the Internet?ATo compare photographs of the two girls.BTo find the girls biological kin.CTo test their suspicions.DTo know how to adopt children.18Experts are still not 100 percent sure that the two girls are fraternal twinsbecause _.ADNA tes

10、ts are still not accurate enoughBthe two girls were born in two different familiesCthe DNA of a biological parent is still missingDone girl was born a week later than the other19What Ramirez said in Paragraph 4 suggests that she _.Adidnt believe what had happenedBwas surprised at what had happenedCd

11、idnt want to accept the fact3 / 5 Dwas pleased with what they had done20What would be the best title for the passage?AAdopted Sisters Are ReunitedBAdopted Sisters Live Happily in the USCSuspicion Turned into RealityBThe earth，moon，sun and all visible stars in thesky make up less than one percent of

12、the universe.Almostall the rest is dark matter and dark energy，unknownforces that puzzle astronomers.Observations in recent years have changed the basic4 / 5 causing the galaxies in the universe to separate at a faster and faster speed.21We know from the text that _.Aall visible stars are very impor

13、tant in the universeBthe basic understanding of the universe evolution was totally wrongCdark matter is also known as dark energyDdark energy makes up about three quarters of the universe22The text tells us “dark matter _.Aplays an important part in forming stars，planets and humansBhas been fully un

14、derstood by researchersCremains an unimportant force to the universe like dark energyDhas nothing to do with the formation of the universe today23“The major forces and substances that shaped our world (in Para.2) refersto _.Aluminous matterBnonluminous matterCdark matterDordinary matter24According to Paul Steinhardt，our existence today _.Adepends mainly on dark matterBhas something to do with ordinary matterCresults from the formation of celestial objectsDevolves from the mass of the universe25Which of the following is the best title for the passage?ADark Mat