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1、【优化指导】课标全国高考英语总复习 课时作业40 北师大版一、阅读理解AMany Americans take their summer vacations in August.President Obama and his family are among them.This August the first family visited the Florida Gulf Coast.The president wants to promote tourism in the area after the BP oil spill(漏油)The first family took a tend
2、ay vacation on Marthas Vinejard，an island off the coast of Massachusetts.Marthas Vineyard is known for the sailing，sunsets and its tall cliffs overlooking the Atlantic Ocean.The island is about 13 kilometers off the coast and is less than 260 square kilometers.Homes designed like those of earlier ti
3、mes line the streets of Edgartown，Oak Bluffs and Vineyard Haven.These are the major towns on Marthas Vineyard.For most of the year，the population of Marthas Vineyard is about 15,000.In summer，more than 100,000 people crowd the island.In addition to the Obamas，you might see some Hollywood stars and o
4、ther rich and famous people.Many visitors return year after year.During warm weather the Vineyard is a good place for many different activities.People can play golf or catch fish.They can ride in sailboats or motor boats.They can waterski and swim.They can take quiet walks along sandy beaches and am
5、ong the thick green trees.One of the popular places for families with children is the Flying Horses Carousel in Oak Bluffs.It is the oldest continually operated merrygoround ride in the United States.The colorful wood horses that turn in a circle were created in 1876.One of the best places for child
6、ren to swim is the Joseph ASylvia state beach.The water there is warmer and calmer.Families also enjoy the Felix Neck Wildlife Sanctuary where they can observe much of the island wildlife.Visitors watch the sunsets sitting on the beach and on rocks in the fishing village of Menemsha.As the sun goes
7、down in the sky it paints yellow，red，and other colors on the clouds.Fishing boats rise and fall with the waves.Bells sound to help guide the boats to land as darkness covers the water.Historians say British mapmaker Bartholomew Gosnold first made a map of the island for the rulers of England in 1602
8、.Gosnold named the island to honor his baby daughter，Martha.The Vineyard part of the name came from the many wild grape vines Gosnold found on the island.Later，King Charles of England gave the island to businessman Thomas Mayhew of the Massachusetts Bay Colony，whose son established the first Europea
9、n settlement on the island in 1642.By the middle of the nineteenth century，ships from the American mainland began bringing visitors to the island.Big hotels were built near the edge of the water.Marthas Vineyard was on its way to becoming the visitors center that it is today.1We can infer that _.Ath
10、e BP oil spill has a negative effect on the tourism along the Florida Gulf CoastBthe BP oil spill has contributed to the tourism along the Florida Gulf CoastCPresident Obama went to the Florida Gulf Coast to deal with the BP oil spillDthis was the first time that President Obama and his family had t
11、aken the vacation on Marthas Vineyard2Which month is the peak time for tourism in Marthas Vineyard?AJanuary.BAugust.CDecember. DMarch.3If children want to see wild animals，the family should go to _.Athe Flying Horses CarouselBthe Sylvia state beachCthe fishing village of MenemshaDthe Felix Neck Wild
12、life SanctuaryBWashington(Reuters)People who drink two or more sweetened soft drinks a week have a much higher risk of pancreatic cancer(胰腺癌)，an unusual but deadly cancer，researchers reported on Monday.People who drank mostly fruit juice instead of sodas did not have the same risk，the study of 60,00
13、0 people in Singapore found.Sugar may be to blame but people who drink sweetened sodas regularly often have other poor health habits，said Mark Pereira of the University of Minnesota，who led the study.“The high levels of sugar in soft drinks may be increasing the level of insulin(胰岛素)in the body，whic
14、h we think contributes to pancreatic cancer cell growth，Pereira said in a statement.Writing in the journal Cancer Epidemiology，Biomarkers & Prevention，Pereira and his colleagues said they followed 60,524 men and women in the Singapore Chinese Health Study for 14 years.Over that time,140 of the volun
15、teers developed pancreatic cancer.Those who drank two or more sweetened soft drinks a week had an 87 percent higher risk of being among those who got pancreatic cancer.Pereira said he believed the findings would apply elsewhere.“Singapore is a wealthy country with excellent healthcare.Favorite pasti
16、mes(消遣)are eating and shopping，so the findings should apply to other Western countries，he said.But Susan Mayne of the Yale Cancer Center at Yale University in Connecticut was cautious.“Although this study found a risk，the finding was based on a relatively small number of cases and it remains unclear
17、 whether it is a causal(因果的)connection or not，said Mayne，who serves on the board of the journal，which is published by the American Association for Cancer Research.Pancreatic cancer is one of the deadliest forms of cancer，with 230,000 cases globally.In the United States,37,680 people are diagnosed wi
18、th pancreatic cancer in a year and 34,290 die of it.4According to the text，who is in control of the health study?AMark Pereira. BScientists from Singapore.CResearchers in Yale. DSusan Mayne.5We can infer from Pereiras words that _.Athe healthcare in Singapore should be greatly improvedB2 soft drinks
19、 a day are considered harmful to healthC87 out of 140 volunteers developed pancreatic cancerDsugar might not be the only cause of pancreatic cancer6How does Susan seem to feel about the findings of the study?ASatisfied. BDoubtful.CWorried. DHopeful.7The best title of the text might be“_AThe Deadlies
20、t Forms of CancerBDrink Fruit Juice Instead of SodasCA Study in University of MinnesotaDSugary Soft Drinks Lead to Cancer二、短文填空根据短文内容，从短文后的选项中选出能填入空白处的最正确选项。选项中有两项为多余选项。1_All parts of our bodies have to rest after they work.Our arms need a rest after we lift heavy things.When we run fast，our legs wo
21、rk hard.They get tired.We have to rest them.Our brains wo2_ We can sit quite still and rest our arms and legs.But our brains arent resting.They go right on thinking as long as we are awake.Our brains slow down a bit when we sleep and dream. _3_ Instead of thinking wideawake thoughts，our brains make
22、up dreams.Some dreams are very pleasing.Some are not.Most of the time we forget them when we wake up.4_The people grew rude and mean.They became angry with their friends.Finally they were too tired to stand up.When they sat down，they fell asleep.Scientists have found that if people are not allowed t
23、o sleep and to dream，they act in an unusual way._5_ But we do know that we need it to stay well.So tonight have a good sleep.Lie down under the covers.Shut your eyes.Let your thoughts wander.Soon youll stop thinking.Youll be asleep.AIt was hard for their tired brains to work.BWhen we are awake，they
24、help us pay attention to the world around us.CBut babies，children，and adultsall of us need to have our sleep.DGood sleep helps to improve ones memory.ENo one knows why sleep is so good for us.FBut even as we sleep our brains are doing some work.GOf course you will have a good sleep.5_三、短文改错增加：在缺词处加一
25、个漏字符号()，并在其下面写上该加的词。删除：把多余的词用斜线()划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。注意：1.每处错误及其修改均仅限一词；2只允许修改10处，多者(从第11处起)不计分。Recently，my classmates and I have participated the activity of LowCarbon Living organized by the WWF.On the first day，we choose to go to school by bike or on foot other than by bus or car.Before
26、 we left the classroom，we made sure whether whether the lights and the computers were switched off.In order to make a full use of papers，we began to write on both sides.Besides，while shopping，we no longer used plastic bags but carried environmental friendly ones.I think how we did that day was meani
27、ngful，which can help us to form a good habit benefited the environment.We should also call on the people around us to do something for lowcarbon living.Only in this way would the earth be a good place to live on.参考答案与解析课时作业(四十)Unit 20B卷一、阅读理解解题导语：本文为说明文，介绍了美国著名的度假胜地Marthas Vineyard。解题导语：华盛顿路透社报道。研究人
28、员发现，喝甜软饮料的人更容易患胰腺癌一种非同寻常而又致命的癌症。4解析：细节理解题。根据第三段后半局部内容可知这项健康研究的负责人是Mark Pereira。答案：A5解析：推理判断题。第三段中Pereira提到糖分也许应该受到责备，但那些喝甜软饮料的人通常有其他不健康的习惯。答案：D6解析：推理判断题。倒数第三段中提到耶鲁大学癌症中心的Susan Mayne对此非常谨慎，倒数第二段接着讲述了她对此的看法，由此可推断此人对这项研究发现持“疑心态度。答案：B7解析：主旨大意题。本文是研究报道，第一段是文章的中心段，根据本段的内容可知此项最能概括解题导语，作为标题最适宜。答案：D二、短文填空三、短文改错