1、Unit 5单元综合测试卷时间：100分钟满分：120分选择题部分第二部分阅读理解(共两节，满分40分)第一节(共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。AWe all know that water is tasteless.But it happens from time to time: you pick up the bottle of water you didnt finish yesterday, and it tastes strange.Most often, you tend to drop the bottle
2、in the trash bin, believing that the water has gone bad.But is it true?According to Time, of course not, taste has little to do with quality of water.According to Time, when water is exposed to the air for 12 hours, carbon dioxide interacts with the H2O in the water, and the PH value lowers slightly
3、.As a result, the water has a different taste.“But its most likely safe to drink，” Norwegian expert Truls Krogh told Science Nordic.“If the water is covered and of good quality to start with, in principle it can last a thousand years.Thats because when water is fresh, it contains little organic matt
4、er.As long as water is held in clean glasses or bottles, no pollutants will enter it to harm our health.”People in countries like the US, the UK and Australia usually drink tap water.According to Time, if tap water is drunk within six months, the chlorine (氯气) in the water will be enough to kill any
5、 bacteria and keep it safe to drink.However, there are also some exceptions.If you accidentally put your fingers into water or store water in unclean containers day after day, microorganism (微生物) will enter the water.With the help of surrounding temperature, and sunlight streaming through windows, t
6、hese microorganisms multiply quickly.Sooner or later, the water will be in the charge of the unfriendly bacteria.And if you drink the water too often, then youre more likely to be ill.And what about water in plastic bottles? Heat and plastic are a bad combination, US researcher Kellogg Schwab stress
7、es.When plastic bottles are used at high temperatures, they produce a chemical called BPA.BPA is something that affects hormones (荷尔蒙) and research has tentatively linked it to “several health damage, including heart disease and cancer”， Time reported.Schwab suggests replacing disposable (一次性的) plas
8、tic bottles with the refillable containers made of metal or glass to deal with BPA.1The purpose of the first paragraph is to _Ashow an exampleBdraw a conclusionCanalyze a phenomenonDintroduce a topic2Which of the following may Truls Krogh agree?AIf the water tastes different, we shouldnt drink it.BT
9、he water held in a clean container is likely safe to drink.CAlthough kept fresh, water may still have much organic matter.DCovered water can last for a thousand years.3What can we infer from the passage?ABPA does little harm to our health.BTap water is always safe to drink.CMicroorganisms are easy t
10、o produce in the heat.DDisposable plastic bottles have been banned already.BA British friend told me he couldnt understand why Chinese people love eating sunflower seeds(嗑瓜子) as a snack so much.“Ive met a lot of older Chinese and many have a crack in their front teeth；I believe thats from cracking t
11、he seeds，” he said.I had never noticed the habit, but once he mentioned it, I suddenly became more aware.I realized that whenever Im watching TV or typing a report, I always start mindlessly cracking sunflower seeds.My friend doesnt like sunflower seeds, and, to him, it seems unnecessary to work so
12、much just to get one small seed.When we were young, the whole family would usually get together for Chinese New Year.Then, we all lived close to one another, usually in a small city, and sometimes even neighbors would go doortodoor on Chinese New Years Eve to check out what every household was makin
13、g.I remember my parents would be in the kitchen cooking.Out in the living room, a large table would already be laid out, complete with fancy tablecloth, readymade dumpling fillings, and dishes full of candy, fruits and sunflower seeds.Some of the dishes were to be offered to our ancestors later, whi
14、le others were for neighbors and children to eat before the evening feast.I must have learned how to crack sunflower seeds back then.I dont think its right to criticize ones choice in food or eating habits, no matter how strange they may seem.Its not only in China.When I went abroad, I found people
15、had all sorts of strange habits when it came to food.In Denmark, they put salted red fish on bread and eat it for dinner, no matter how much it ruins your breath.They think its a delicacy(美味佳肴), and its connected to their certain culture.I think its a wonderful tradition.4What lesson can we learn fr
16、om the story?AOne kind of food doesnt necessarily suit everyone.BIt is good to form healthy eating habits.CEating habits come from a certain culture.DChanging your eating habits will change your life.5What did the writer become aware of?AShe had ever typed a report about seeds.BShe had various snack
17、s while watching TV.CShe damaged her teeth by eating sunflower seeds.DShe had a habit of cracking sunflower seeds.6What does the writer prove by mentioning Chinese New Year?AThe traditions of celebrating it disappear.BEating sunflower seeds is related to it.CThe families get together for it.DChildre
18、n can eat delicious food on that day.7The writers attitude to Denmarks way of eating bread is _Aneutral (中立的)Bcritical (批评的)CacceptableDdoubtfulCWith only about 1, 000 pandas left in the world, China is desperately trying to clone(克隆) the animal and save the endangered species(物种)Thats similar to wh
19、at Texas A&M University researchers have been undertaking(负责) for the past five years in a project called “Noahs Ark”Noahs Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen(氮)If certain species should become extinct, Dr.Duane Kraeme
20、r, a professor in Texas A&MS College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.It is estimated that as many as 2, 000 species of mammals, birds and reptiles will become extinct in over 100 years.The panda, native only to
21、China, is in danger of becoming extinct in the next 25 years.Chinese scientists said they grew an embryo introducing cells from a dead female panda into the egg cells of a Japanese white rabbit.They are now trying to implant the embryo into a host animal.The entire procedure(过程) could take from thre
22、e to five years to complete.“The nuclear transfer(核子移植) of one species to another is not easy, and the lack of available(capable of being used) panda eggs could be a major problem，” Kraemer believes.“They will probably have to do several hundred transfers to result in one pregnancy(having a baby)It
23、takes a long time and its difficult, but this could be groundbreaking science if it works.They are certainly not putting any live pandas at risk, so it is worth the effort，” adds Kraemer, who is one of the leaders of the Project at Texas A&M, the firstever attempt at cloning a dog.“They are trying t
24、o do something thats never been done, and this is very similar to our work in Noahs Ark.Were both trying to save animals that face extinction.I certainly appreciate their effort and theres a lot we can learn from what they are attempting to do.Its a research that is very much needed.”8According to P
25、rofessor Kraemer, the major problem in cloning pandas would be the lack of _Aavailable panda eggs Bhost animalsCqualified researchers Denough money9The best title for the passage may be _AChinas Success in Pandas CloningBThe First Cloned Panda in the WorldCExploring the Possibility to Clone PandasDC
26、hina the Native Place of Pandas Forever10From the passage we know that _AKraemer and his team have succeeded in cloning a catBscientists try to implant a pandas egg into a tigerCKraemer will work with Chinese scientists in clone researchesDabout two thousand of species will probably die out in about
27、 a century11The aim of “Noahs Ark” project is to _Amake effort to clone the endangered pandasBsave endangered animals from dying outCcollect DNA of endangered animals to studyDtransfer the nuclear of one animal to anotherDI dont think I can recall a time when I wasnt aware of the beauty of the ocean
28、.Growing up in Australia, I had the good fortune of having the sea at my side.The first time I went to Halfmoon Bay. I suddenly had the feeling of not being able to feel the ground with my feet anymore.For my 10th birthday, my sister and I were taken out to the Great Barrier Reef.There were fish in
29、different colors, caves and layers of coral.They made such an impression on me.When I learned that only 1 percent of Australias Coral Sea was protected, I was shocked.Australian marine (海洋的) life is particularly important because the reefs have more marine species than any other country on earth.But
30、 sadly, only 45% of the worlds reefs are considered healthy.This statistic is depressing, so its important for us to do everything to protect them.The hope that the Coral Sea remains a complete ecosystem has led me to take action.Ive become involved with the Protect Our Coral Sea activity, which aim
31、s to create the largest marine park in the world.It would serve as a place where the oceans species will all have a safe place forever.Together, Angus and I created a little video and we hope it will inspire people to be a part of the movement.Angus also shares many beautiful childhood memories of t
32、he ocean as a young boy, who grew up sailing, admiring the beauty of the ocean, and trying to find the secrets of ocean species.12According to the second paragraph, Australian marine life _Ais escaping from the Coral Sea graduallyBdepends on reefs for living greatlyCmay be faced with dangerDis prote
33、cted better than that in other oceans13The Protect Our Coral Sea activity is intended to _Acontribute to a complete ecosystemBprevent more marine species from being endangeredCset up a large nature reserve for reefsDraise more teenagers environmental awareness14Angus and the author created a little
34、video to _Aurge more people to take action to protect the marine speciesBinspire more people to explore the secret of the oceanCshare their childhood experiences about the oceanDbring back to people their memory of ocean species15From the underlined sentence in Para.1, we can learn the author _Aseld
35、om went surfing at the seaBforgot his experiences about the oceanCnever went back to his hometownDhad a wonderful impression of Halfmoon Bay第二节(共5小题；每小题2分，满分10分)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。Can we humans avoid war? Can war be prevented? 1 Throughout the ages, from the Stone Age to the At
36、omic Age, men have been fighting, first with swords and shields, then with pins and cannous, and now，hydrogen bombs and missiles are used for military purpose.But, in spite of all these，it is still belief that war can be prevented and peace can be won, but it requires the effort of every one of us.
37、2 If it ever happens, twothirds of the world and much of the civilization which men have gained through time，patience and effort will be destroyed.Will then the remaining onethird of the world be able to survive on its own?Our task now is not to blame the past，but to plan for the future.If there is
38、peace in the world, men can use their rockets to explore the mystery of space，their submarines to explore the depth of the sea，their missiles to deliver to mails and their fine equipment to penetrate(穿透)jungles of Africa，instead of using them military.Governments can use their money to build more sc
39、hools，so that more children can be educated to be useful citizens. 3 They can also design new machines to increase the production of goods and thus improve the way of the people. 4 It requires，in my opinion，the understanding and friendship between all people from all nations.Let no one suffer discri
40、mination by reason of color，race，religion，or national origin.Let the rich support the poor and the strong help the weak.We know that neither peace nor such a dream world can come true in a day or month. 5 But let us plan and begin now.AHow can a peaceful world be achieved?BThe process may even take
41、decades or centuries.CPeace can be won through the efforts of all human beings.DThings for military use can be transformed to peaceful use.EScientists can use atomic energy to power steamships and planes.FI am sure that we would not like to experience another world war.GHistory tells that there were
42、 wars, great or small，in every century, in every decade.第三部分语言运用(共三节，满分40分)第一节完形填空(共15小题；每小题2分，满分30分)阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。One month ago, Sarah bought a lipstick(口红) she had desired.Its not 1 ， but it made her happy, because it was the one that she had been 2 since she saw it.E
43、very morning, when she puts on her makeup, everything seems brand new due to this lipstick.It feels like that the whole day is full of 3 Sarah has long been accustomed to rewarding herself through shopping.And this desire for material possession 4 her to work hard.She feels 5 about this.Her life kee
44、ps getting better all because of this kind of desire.But her mother thinks quite 6 Several days ago, when her mother came to know the 7 of the lipstick, they kept quarreling for almost a whole day.Her mother thought that it was 8 wrong to spend so much on such meaningless items, while Sarah thought
45、her mother was totally 9 about it.What Sarah didnt know was that her mother had once been a little girl who had 10 in poverty and starvation.That little girl could not find enough clothes to 11 in winter.That girl needed to learn how to spend every penny as if it were two in order to survive.Its jus
46、t 12 that two people cant understand each other, even for mother and daughter, because everybodys 13 is different.Try to be patient with the people around you.Try to get to 14 them.Try to stand in their shoes.If you can not listen to people, how can you 15 them to listen to you?1A.dearBcheapCfamousD
47、handy2A.longing forBheading forCleaving forDpaying for3A.anxietyBhateClaughterDhope4A.warnsBpersuadesCbegsDdrives5A.cautiousBgoodCstressedDnegative6A.firmlyBdifferentlyClogicallyDobviously7A.qualityBbrandCmaterialDprice8A.probablyBapproximatelyCslightlyDcompletely9A.unreasonableBuncomfortableCenthusiasticDcurious10A.turned upBbroken upCgrown upDkept up11A.wearBsellCexchangeDclean12A.unlikelyBnecessaryCstrangeDnatural13A.experienceBknowledgeCcharacterDfamily14A.moveBforgiveCknowDco
