优化课堂2012高二英语单元自测：UNIT5（新人教版选修6）.doc

1、高考资源网（） 您身边的高考专家单元自测一、单词拼写1He studied the German market to find the _ (潜能) for investment there.2She got into a _ (惊慌) when she found her car was lost.3He was _ (任命) mayor of the city.4Theres no _ (绝对的) standard for it.5The _ (实际的) cost was much higher than we had expected.6The rain _ (保证) a good ha

2、rvest this year.7You should _ (估计) your chances of success before making a decision.8The volcano _ (爆发) three years ago.9Children suffering from illness had _ (洗澡) in the polluted water.10The dog ran _ (在旁边) the girl.二、用所给单词的适当形式填空1Jim knew _ (absolute) nothing about the business when he joined the

3、firm.2The teacher praised him for his _ (anxious) for knowledge.3A serious volcanic _ (erupt) happened recently in this place.4My _ (appreciate) can not be expressed by any words.5The program deals with subjects as _ (diversity) as pop music and Cantonese Opera.6I tried to fix the _ (equip) but I fa

4、iled.7She made a rather good living as a _ (novel)8The child felt _ (comfortable) in his tight boots.一、翻译短语1全部焚毁 _2前往 _3匆匆看一遍 _4对焦急 _5由到不等 _6不挡道；躲开 _7向射击 _8任命为 _二、用上题的短语的适当形式填空1There were so many people in the market.As a result, I had to _ to the shop.2I _ the newspaper when I was waiting for the b

5、us.3The soldier moved _ to let him go.4Last week they _ Mr.Chen _ headmaster of our school.5She _ her daughter when she didnt come home from school in time.6Seeing the house _， she felt her heart broken.7The man is _ the birds.8The prices of the shoes _ ten _ fifteen dollars.三、完成句子1_ (和相比) the previ

6、ous model, the new one is less expensive.2She has a _ (自然卷曲) in her hair.3I think men look particularly charming _ (穿着西装)4There are three _ (候选人) for the job.5I _ (保证) you will have a good time.6The meeting _ (结束了), all of us went home.7_ (已经完成了) his homework, he went to bed.8The children walked out

7、 of the classroom, _ (有说有笑) happily.一、阅读理解A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct (不同的) species.The discovery was made by researchers at York and Harvard Universities when they were examining the

8、 genetic relationship between the ancient woolly mammoth (长毛象) and mastodon (幼齿象) to modern elephantsthe Asian elephant, African forest elephant and African savanna elephant.Once they obtained DNA sequences (序列) from two fossils (化石), mammoths and mastodons, the team compared them with DNA from mode

9、rn elephants.They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths.The scientists used detailed genetic analysis to prove that the African savanna elephants and African forest elephants have been distinct species for se

10、veral million years.The divergence of the two species took place around the time of the divergence of Asian elephants and woolly mammoths.This result amazed all the scientists.There has long been debate in the scientific community that the two might be separate species, but this is the most convinci

11、ng scientific evidence so far that they are indeed different species.Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants significant size differences.The savanna elephant has an average shoul

12、der height of 3.5 metres while the forest elephant has an average shoulder height of 2.5 metres.The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant.But the fact that they look so different does not necessarily mean they are different species, howe

13、ver the proof lay in the analysis of the DNA.Alfred Roca, assistant professor in the Department of Animal Sciences at the University of Illinois, said, “We now have to treat the forest and savanna elephants as two different units for conservation purpose.Since 1950, all African elephants have been c

14、onserved as one species.Now that we know the forest and the savanna elephant are two very distinctive animals, the forest elephant should become a bigger priority (优先) for conservation purposes.”1One of the fossils studied by the researchers is that of _.Athe Asian elephant Bthe forest elephant Cthe

15、 savanna elephant Dthe mastodon elephant 2The underlined word “divergence” in Paragraph 4 means “_”Aevolution Bexhibition Cseparation Dexamination 3The researchers conclusion was based on a study of the African elephants _.ADNA Bheight Cweight Dpopulation4What are Alfred Rocas words mainly about?ATh

16、e conservation of African elephants.BThe purpose of studying African elephants.CThe way to divide African elephants into two units.DThe reason for the distinction of African elephants.5Which of the following can be the best title for the passage? ANaturalists Beliefs about Elephants BAmazing Experim

17、ent about ElephantsCAn Unexpected Finding about Elephants DA Long Scientist Debate about Elephants二、读写任务阅读下面短文，然后按照要求写一篇150词左右的英语短文。Indonesians thank volcano for eliminating pestJAKARTA (AFP) Farmers residing on the slopes of a smoldering Indonesian volcano are thanking the mountain for getting rid

18、of a pest that had devastated the areas coconut palms, a report here said Tuesday.Gamkonora volcano on Halmahera island in Indonesias North Maluku Province erupted in July, shooting rocks, ash and smoke into the air for days and prompting thousands to flee their homes.“Almost all our coconut trees w

19、ere previously ruined by the sexava pest.Now we are completely free of this pest, following Gamkonora blanketing the area with ash in July，” the state Antara news agency quoted a local farmer, Yakup, as saying.Other areas on the same island that were not inundated by the ash continue to suffer from

20、the pest, an insect which voraciously eats leaves of the coconut tree, greatly reducing the coconut harvest.Coconuts processed into copra are a main source of livelihood for residents in the area.“When Gamkonora erupted, the ash it spewed made us all suffer, and many got coughs and the flu.But it tu

21、rns out that this very same ash has helped us overcome this sexava pest，” said another farmer, Julis. 写作内容1以约30词概括上文的主要内容；2以约120词就“Disaster or Fortune”这个主题发表你的看法，内容包括：(1)说明人类对自然灾害的认识不足；(2)举例说明其实自然灾害也可以造福人类；(3)表达你对近年来极端自然灾害的担忧并提出建议。写作要求1作文中可以使用亲身经历或虚构的故事，也可以参照阅读材料的内容，但不得直接引用原文中的句子；2作文中不能出现真实姓名和学校名称。评

22、分标准概括准确，语言规范，内容合适，语篇连贯。_答案单元自测单词专练一、1.potential2.panic3.appointed4.absolute5actual6.guarantees7.evaluate8.erupted9bathed10.alongside二、1.absolutely2.anxiety3.eruption4.appreciation5diverse6.equipment7.novelist8.uncomfortable短语句型 一、1.burn to the ground2.make ones way3glance through4.be anxious about5v

23、ary from.to.6.out of the way7shoot at8.appoint.as/to be二、1.make my way2.glanced through3.out of the way4appointed; as/to be5.was anxious about6burning/burn to the ground7.shooting at8vary from; to三、1.Compared with/to2.natural wave3.in suits4candidates5.guarantee that6.being over7Having finished8.tal

24、king and laughing迁移运用一、1.D细节理解题。根据第三段第一句可知科研工作者从长毛象和乳齿象的化石中提取了基因，故选D。2C词义猜测题。根据第四段第一句描述非洲草原象和丛林象数百万年前就已经分化为不同种群，可知divergence与separation意思最为接近。3A细节理解题。根据第三段第一句可知试验是通过DNA对比而得出结论的，故选A。4A细节理解题。这一段话主要是说了如何调整大象的保护，故选A。5C主旨大意题。全文主要讲述了大象基因研究中一个令人吃惊的新发现，故选C。二、参考范文：The report tells an interesting story that I

25、ndonesians thank a smoldering volcano for eliminating pests.Indonesians were suffering from a pest attack but thanks to the volcano eruption, they overcame the disaster.When regarding natural disasters, people always think of words like damage, tragedy or death.We take a negative attitude towards th

26、em.However, natural disasters can also be something appreciable.Such examples can be given easily.The Nile floods the land of Egypt every year, but after the damage it seems to be, the floods actually bring rich soil and nutrition which are favorable for farming.As its proved above, natural disaster

27、s can also do good to human beings.However, more and more extreme weathers in recent years may bring more misfortune.A lot of people come to worry the question of declining living environment.Therefore its high time that some effective measures should be taken to protect our surroundings.People should bear in their mind that we humans can not survive without the harmony of nature.4 版权所有高考资源网