题目内容

【题目】— When did you become a member of “Helping Hands Club”?

— I ________ in this organization since 2012.

A.joinedB.took partC.have joinedD.have been

【答案】D

【解析】

句意:——你什么时候成为援助之手俱乐部的成员的?——我从2012年开始就在这个组织。

考查时态。joined参加,过去式;took part参加,过去式; have joined已经参加,非延续性动词,现在完成时;have been in待在,延续状态,现在完成时;根据since 2012可知是现在完成时态,且加入这个组织是是自从2012年开始,是延续性的一段时间,只能用have been in。故选D

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【题目】 When I was 13, my only purpose was to become the star on our football team.

That meant beating out Miller King, who was the best ________________ at our school.

Football season started in September and all summer long I worked out. I carried my football everywhere for_____________. Just before September, Miller was hit by a car and lost his right________________. I went to see him after he came back from hospital. He looked very ________________, but he didn’t cry. That season, I _________________ all of Miller’s records while he watched the home games from the bench. We went 10-1 and I was named most valuable player,_____________I often had crazy dreams in which I was to blame for ( 负责) Miller’s accident.

One afternoon, I was crossing the field and saw Miller stuck (卡在) going over a fence — which wasn’t ________________ to climb with both arms. I’m sure I was the last person in the world he wanted to________________ help from. But even that challenge he accepted. I helped him move slowly over the fence. When we were finally________________ on the other side, he said to me, “You know, I didn’t tell you this during the season, but you did_________________Thank you for filling in for me.”

His words freed me from my bad dreams. I thought to myself, how even without an arm he was more of a leader. Damaged but not defeated, he was still ahead of me. I was right to have admired him. From that day on, I grew bigger and a little more real.

1A.playerB.studentC.teacherD.coach

2A.practiceB.showC.funD.pleasure

3A.legB.footC.shoulderD.arm

4A.calmB.paleC.angryD.worried

5A.heldB.triedC.setD.broke

6A.soB.butC.as a resultD.and

7A.easyB.hardC.interestingD.comfortable

8A.acceptB.refuseC.welcomeD.invite

9A.droppedB.readyC.trappedD.safe

10A.badlyB.slowlyC.fineD.fast

【题目】 Where did humans come from? An Australian researcher believes that she’s found the answer: river valley in the African country of Botswana (博瓦纳).

Professor Vanessa Hayes from the Garvan Institute of Medical Research in Sydney said she and her team have traced (追踪) modern humans back to small group of people who lived in this valley, according to the BBC.

“It’s an extremely large area, it would have been very lush (苍翠繁茂的), and it would have actually provided a suitable habitat for modern humans,” she said. She and her team studied mitochondrial (线粒体的) DNA (mtDNA) from people who live in south Africa, such as the Khoisan people. This type of DNA is only passed down from mother to child. This makes it easier to trace one’s ancestry (祖先), according to Business Insider. By tracing mtDNA back through different generations, the team concluded that every person alive today is related to a woman who lived in Botswana.

However, some experts doubt Hayes’ findings, saying that studies like hers are no longer important or necessary. “The idea that we’re looking for a single origin [of modern humans] is out of fashion,” said John Hawks, a researcher at the University of Wisconsin-Madison, US, in Popular Science.

There are many other locations around the world where humans could have gotten their start. It is likely that mankind appeared in many places at the same time. “I increasingly think that there probably wasn’t a single population in which modern humans evolved (进化). If that is the case, there is no ‘homeland’,” said Ryan Raaum, who researches African population genetics (遗传学) at Lehman College, US.

1According to Hayes, where did humans come from?

A.Australia.B.Botswana.C.South Africa.D.Latin America.

2Hayes and her team studied mtDNA because ________.

A.it is the most common type of DNA humans shareB.there is a new technology to test mtDNA

C.it is only passed down from mother to childD.both women and men can take mtDNA tests

3According to Hawks, Hayes’s study is ________.

A.importantB.wrongC.fascinatingD.unnecessary

4What is the story mainly about?

A.New findings about the origin of humans.B.New findings about mtDNA.

C.The evolution of humans.D.The habitats of ancient humans..

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