单元达标测评.docx

1、单元达标测评单元达标测评(满分:120分;时间:100分钟)第一部分阅读(共两节,满分50分)第一节(共15小题;每小题2.5分,满分37.5分)阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。AElephant ConservationCountry:ThailandThis is a working vacation at a wildlife centre. Anyone can become a volunteer if he/she agrees to help the elephant keepers with tasks.Daily tasksCollect t

2、he elephants at 6:30 a.m. Take them to look for food in the forest. Clean the enclosure. Swim with the elephants in the lake in the afternoon. If volunteers want to relax after work, they can watch satellite television.How this vacation helpsIf these elephants hadnt been rescued, they would still be

3、 living on the streets of Bangkok. A rural environment is much better for them than an urban environment where there is lots of pollution.Gorilla SafariCountries:Kenya, Rwanda, Uganda Departures:Aug.Dec., 23 departures per monthExtras:gorilla permit 220If youre lucky, youll see lions, elephants and

4、rhinos on safari. The highlight of the trip is the opportunity to see gorillas in the mountain forests. However, you must be in good healthif a gorilla caught a cold, it would be extremely harmful to its whole family.How this vacation helpsThere are only about 600 mountain gorillas left in the world

5、 as human activity has reduced the area where they can live. When you buy a permit, this will pay for the protection of the national park.Polar Bear WatchingCountry:CanadaDepartures:sixty trips between Oct. 1Nov. 19Every October and November, groups of polar bears gather in Hudson Bay. As they are n

6、ormally lonely creatures, this is unusual. The bears wait for the ocean to freeze so they can hunt seals, so this is the perfect opportunity to see them.How this vacation helpsIf the Arctic ice cap melts due to global warming, polar bears will be in danger. We give a share of our profits to the Pola

7、r Bears Alive Charity.Your commentThese awesome bears get all the liquid they need from their food.1.What will an elephant volunteer do?A.Take food for elephants at 6:30 a.m.B.Sweep the houses of elephants.C.Wash elephants in the lake in the afternoon.D.Watch satellite television on elephants.2.What

8、 do we know about Gorilla Safari?A.You can find gorillas in Kenya and Canada.B.You might get a cold in the mountain forests.C.Visitors need to pay $220 to see 600 gorillas.D.There are about 10 trips to visit gorillas.3.What can we know from the last paragraph?A.Bears dont need to drink water.B.Bears

9、 store their liquid in their food.C.Bears drink all kinds of liquid.D.Bears eat mainly liquid food.4.The aim of these activities is to help .A.solve the problem of global warmingB.protect wild animalsC.deal with the pollution in citiesD.build more national parksBOn the day when the tornado hit, ther

10、e was no indication that severe weather was on its waythe sky was blue and the sun had been out. The first warning my husband, Jimmy and I got came around 9 pm, from some scrolling text on the TV Jimmy was watching.No sooner had we found coverage of the tornado than it was on top of us. I didnt know

11、 how or if we would walk down the steps. It felt as if there were no floor underneath me as the wind lifted me off my feet. I gripped the banister (楼梯扶手) and tried to move forward, but this intense pressure held me in place. In those seconds of practical stillness, I could hear everything around me

12、rattling.We got close to the stair landing only to hear the loud ripping sound of our garage door coming off.By the time I reached the closet, the tornado had been over us for about a minute. Jimmy pushed me down to the closet floor, but he couldnt get himself inside because of the wind. I held Jimm

13、ys arm tightly as the tornado sucked the door openwe never did get it fully shutand tried to bring Jimmy in. My knees and head were full of glass, but at that moment, I felt no pain. If I had let go, Jimmy would have flown right out the back of the house and into the bay.“Hold on! Hold on!” he yelle

14、d. But there was nothing in this closet to hold on to. All of a sudden, Jimmy lifted off his feet like people in tornadoes do in the movies. I thought he was gone. And then everything stopped. He landed on his feet. In those first quiet moments, I couldnt believe it was over. Jimmy said hed go outsi

15、de to check. “No,” I said. “Dont leave me. Dont leave me.”5.What does the underlined word “coverage” in Paragraph 2 mean?A.Damage. B.Report.C.Arrival. D.Delay.6.In the last two paragraphs, why did the author feel no pain?A.Because she was too eager to help her husband to feel it.B.Because she was fr

16、ozen in amazement.C.Because she was held entirely by the power of the tornado.D.Because she was frightened of the damage caused by the disaster.7.Which words can be used to describe the feeling of the author during the disaster?A.Scared, surprised but calm.B.Surprised, terrified but determined.C.Ast

17、onished, confused and moved.D.Amazed, determined and grateful.CScientists investigated why the Ebola virus is so deadly when it spreads from animals to humans and then by human-to-human contact. The research team looked at the Zaire Ebola virus in an animal system to understand how it gained strengt

18、h. This virus is responsible for the current outbreak in West Africa. They found that initially (最初) the animal systems were not affected by the virus, but succeeding transmission (传播) into other animals caused the virus to “hot up” and become more severe.The team analyzed the viruses at different s

19、tages and were able to identify several changes in its genetic material that were associated with increased disease.Professor Julian Hiscox, who led the study from Liverpool Universitys Institute of Infection and Global Health, explained, “The work tells us that the evolutionary goal of the Ebola vi

20、rus is to become more fatal.”“We were able to show through genetic analysis which parts of the virus are involved in this process. The information we have gathered will allow us to monitor such changes in an outbreak as well as develop future treatment strategies.”Professor Roger Hewson, leading the

21、 study from Public Health England, Porton Down, said,“The Ebola virus is such a destructive infection to the people affected by the disease and the economy of West Africa.”“Our understanding of the Ebola virus biology is way behind that of other viruses and our cooperation shows how we can get our s

22、pecialists skills together to close this knowledge gap.”Professor Miles Carroll, a co-author of the work, said, “This study has allowed the team to be at the forefront of developing methodologies to analyze patient samples recently taken by the European Mobile Laboratory from West Africa to understa

23、nd disease evolution during the current outbreak.”8.What does the first paragraph mainly tell us?A.How severe the Ebola virus is.B.How the Ebola virus spreads.C.How the Ebola virus gradually becomes deadly.D.What contributions scientists have made on the Ebola virus.9.Which of the following statemen

24、ts is mentioned in the passage?A.In the first stage, the virus hurts its victims much.B.As the virus spreads, itll change and become more and more deadly.C.The research on the Ebola virus is more advanced than that on other viruses.D.The scientists have a negative attitude to the research on the Ebo

25、la virus.10.The underlined word “fatal” has the closest meaning to .A.optimistic B.deadlyC.common D.fantastic11.Where can we probably read this passage?A.In a science report. B.In a storybook.C.In an advertisement. D.In a textbook.DThe United States Department of Agriculture has a program called Wil

26、dlife Services. Its job is to help protect agricultural and other resources. Often that means helping farmers deal with unwelcome visitors. This organization has experts from different fields and it has set up thousands of inquiry centers all over the country where farmers can explain their difficul

27、ties and get practical help.One example from Wildlife Services of its work involved a farmer in Washington State in the Pacific Northwest. Several years ago, thousands of Canada geese landed on his fields. The geese began to eat his carrot crop. Biologists from the program suggested that the farmer

28、use noise-making devices and other measures to scare the large birds away. These efforts succeeded, which made the farmer quite happy. Wildlife Services also has a livestock protection program. The program just offers suggestions to keep those unwelcome visitors away instead of killing them. The Wil

29、dlife Services program is part of the Animal and Plant Health Inspection Service, or APHIS. APHIS offers some suggestions for ways to keep predators away. For example, try to keep food and water safe from wildlife. Fences may help keep out wolves, especially if the fences are at least two meters hig

30、h.Experts suggest providing secure shelter for chickens, sheep and other animals that could be attacked. They also suggest using lights above places where these animals are kept. And they advise people who see wolves to chase them away by shouting, making loud noises or throwing rocks. And to protec

31、t livestock, consider using guard animals such as dogs and donkeys, which are very effective.For home gardeners, a two-meter fence might help keep out deer. To keep out rabbits, a wire fence has to be only about a half-meter high. It should extend fifteen centimeters underground to keep rabbits from

32、 digging under it. If snakes are a problem, remove dead trees and cut high grass to destroy their hiding places. Due to its effective work, ever since Wildlife Services was started, it has been well received by farmers all over the States and neighboring countries such as Canada and Mexico.12.What does Wildlife Services intend to help farmers handle?A.Animals that attack farmers.B.People who pollute the farmland.C.People who dont care about wil