人教版(新教材)高中英语选修4Unit4 SharingUnit3 Sea Exploration课时作业4：Reading and Thinking(1).docx

UNIT 3 SEA EXPLORATIONReading and Thinking（l）i .阅读理解AOcean Noise PollutionSome scientists say that animals in the ocean are increasingly threatened by noise pollution caused by human beings.The noise that affects sea creatures comes from a number of human activities.lt is caused mainly by industrial underwater explosions , ocean drilling , and ship engines.Such noises are added to natural sounds.These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.Decibels（分贝）measured in water are different from those measured on land. A noise of 120 decibels on land causes pain to human ears.In water, a decibel level of 195 would have the same effect.Some scientists have proposed setting a noise limit of 120 decibels in oceans.They have observed that noises above that level can frighten and confuse whales.A team of American and Canadian scientists discovered that louder noises can seriously injure some animals.The research team found that powerful underwater explosions were causing whales in the area to lose their hearing.This seriously affected the whales' ability to exchange information and find their way.Some of the whales even died.The explosions had caused their ears to bleed（流血）and become infected（感染）.Many researchers whose work depends on ocean sounds object to a limit of 120 decibels.They say such a limit is a greater danger than they believed.They want to prevent noises from harming creatures in the ocean.K语篇解读本文主要讲述了人类制造的噪音对海洋生物的影响。1 .According to the passage, which of the following is increasingly dangerous to seacreatures?A.The sound of a car.B.The sound of voices.C.Man made noise pollution.D.The sound of steps.K答案C K细节理解题。由第一段可知，人类活动制造的噪声污染正日益 对海洋生物产生危害。.According to the passage, natural sounds include all of the following EXCEPTA.sounds made by animals themselvesB.ocean drillingC.underwater earthquakesD.the breaking of ice fieldsK答 案X BK细节理解题。由第二段可知，ocean drilling属于人类活动制造的噪音，而非 natural sounds。32 .Which of the following is true of whales?A.They won't be confused by noises.B.They are deaf to noises.C.Their ability to reproduce will be lowered by high-level noises.D.Their hearing will be damaged by high-level noises.K答 案H DK细节理解题。由第五段中的“were causing whales in the area tolose their hearing .”可知，高分贝的声音会损伤鲸鱼的听力。U3 .According to the passage, what will scientists most probably do in the future?A.They will work hard to reduce ocean noise pollution.B.They will protect animals from harmful noises.C.They will try to set a limit of 120 decibels.D.They will study the effect of ocean noise pollution.（答案BK推理判断题。由最后一段可知，科学家们想要努力保护海洋生物免受噪音的伤害。1On November 7, Lewis Pugh completed a one kilometer swim in the freezing waters of King Edward Cove, off South Georgia in Antarctica.He was wearing only his swimming glasses, cap and Speedos!Pugh is an advocate（提倡者）for our oceans and seas, working to protect these ecosystems with their large diversity of marine（海洋的）life.When asked why he doesn't wear a wetsuit, Lewis says, “I ask world leaders to do everything they can to protect our oceans.Sometimes the steps they need to take are difficult and unpopular.If Tm asking them to be courageous, I must also be.Swimming in a wetsuit would not send the right message.vIt took Pugh about 19 minutes to complete the one - kilometer swim in Antarctica where the water averaged about 1.6 degrees Celsius（摄氏度）.He says that his body can only tolerate about 20 minutes in the freezing waters before it starts shutting down.As he swims, his body temperature steadily drops, which in turn causes his muscle（肌肉） control to drop, slowing him down.When he is done with his swim, his support team rushes him to a hot shower and it takes almost an hour for his body temperature to return to normal.Doctors and Pugh caution that one must receive months of training to swim in such cold waters.Even expert swimmers who are unused to freezing water can drown within minutes because of the physical shock experienced by the body.Pugh says he has trained for six months before this swim.This is not the first time that Lewis has swum in dangerous conditions.In 2007, he swam one kilometer in the North Pole to draw attention to the melting Arctic ice due to climate change.In 2015, he swam in the Bay of Whales in Antarctica's Ross Sea as part of his successful campaign to help set up a marine reserve there.K语篇解读U本文为记叙文，讲述了 Lewis Pugh为了呼吁政府采取措施保护海洋，而在南极海洋水温很低的情况下，不穿防寒泳衣游泳的勇敢事迹。4 .Why did Lewis Pugh swim without a wetsuit?A.To swim faster.B.To show his bravery.C.To build up his body.D.To win public attention.R答案B k细节理解题。根据第二段最后两句可知，Pugh不穿防寒泳衣 游泳的原因是他要展示他的勇敢，应选B项。I.What does the underlined word “it” in Paragraph 3 refer to?A.His body.B.The water.C.His body temperature.D.The water temperature.K答 案H A K代词指代题。根据上文his body can only tolerate about 20 minutes可知，在冰水里游泳他的身体只能忍受20分钟，可推测出，此处的it 指的是his body,应选A项。U.Whafs Pugh's advice about swimming in freezing waters?A.One must be fully prepared.B.One should be expert at swimming.C.One should be ready to take on challenges.D.One must be used to long-distance swimming.（答 案RA K细节理解题。根据第四段第一句可知，一个人要想在冰冷的水里游泳必须经过很长时间的训练，即要做足准备工作才行，应选A项。5 .What may be the best title for the text?A.How to prepare for extreme swimmingB.How to survive a swim in cold watersC.Lewis Pugh： swimming for a causeD.Lewis Pugh： achieving the impossibleK答 案RC K标题归纳题。文章主要讲述的是Lewis Pugh为了保护海洋而在极寒的水里游泳，他用行动去展示他保护海洋的决心和勇气，应选C项。工 II .阅读七选五The Thanksgiving Day has been alive for hundreds of years.The customs we see in our homes today remind us of ancient celebrations of harvest, thankfulness for peace， and the hard work of Native Americans.lt is made up of stories of those who believe that thanks for blessings are what people must own.j.Have you wanted to make special gifts?Custom of PrayingFor centuries, Thanksgiving Day has something to do with prayers in church and in homes. 2 .It is a time when mankind thanks God for all his blessings and mercy.lt is also a day to show gratitude to their friends and relatives for all the good deeds.3Everyone follows the custom of family dinner and reunion every year.Distances don't really matter as relatives can drive down to be with their family.Feasts are usually held at home.lt is a time to enjoy their favorite "Roasted Turkey“ with the family.Custom of Decoration4 .People beautify their homes, making their living places a whole new look and feel.They light lamps to brighten the environment.Tables are decorated with best china（瓷茗浮）and antique silver cutlery（餐具）to mark the occasion.Custom of Sending MessagesThanksgiving is a day when people send loving messages and warm wishes to their relatives, colleagues at work place, near and dear ones. 5 .A.Custom of Family DinnerB.Custom of Roasted TurkeyC.People present gifts to friendsD.Like Christmas, millions of cards are sent every yearE.People offer various meal time prayers during the dayF.It is a day of expressing their feelings through Thanksgiving cardsG.Thanksgiving is a time to decorate homes with wreaths（花环），fresh and dried flowersK语篇解读U本文为说明文，主要介绍了感恩节的相关习俗，如祷告的习俗、聚餐的习俗、装饰的习俗等。l.C K根据空后一句可知，C项（人们给朋友送礼物）承接下文，应选C项。I 2.E本段的小标题是 Custom of Praying, E 项中的 various meal time prayers 与小标题及下一句中的time相呼应，应选E项。U3 .AK 根据本段中的 Everyone follows the custom of family dinner.可知，本段讲述的是家庭聚餐的风俗，应选A项。D4 .GK本段的小标题是Custom of Decoration, G项谈论的也是感恩节装饰，与标题呼应，应选G项。5 .F K本段的小标题是Custom of Sending Messages, F项（它是通过感恩节卡片 表达情感的一天）符合语境，应选F项。U