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1、Section Using Language,Assessing Your Progress & Video Time一、单词拼写1.Norris twice knocked down his (对手) in the early rounds of the fight.答案opponent2.The sinking of the tanker has made aspects of (海洋的)pollution particularly topical.答案marine3.The oil shortage drove gas prices up by 20 cents a (加仑).答案gal
2、lon4.Father was cutting the grass,and (与此同时) mother was planting roses.答案meanwhile5.A man has been a in connection with the robbery.答案arrested6.This has been my worst time for injuries since I started as a (职业的) footballer.答案professional7.Every possibility has been (利用) to establish a number of scho
3、ols.答案exploited二、选词填空take action,carry out,tell apart,take place,a variety of,come up with,focus on1.She a new idea for increasing sales.答案came up with2.If it rains,the great performance will at eleven oclock in the morning.答案take place3.Its easy to my pills because theyre all different colours.答案te
4、ll;apart4.There is patterns to choose from.答案a variety of5.The past system has comprehensively failed and we have to completely replace it.答案taken action6.I pushed aside my sorrow,forcing myself to the coming test.答案focus on7.Extensive tests have been on the patient.答案carried out三、阅读理解Scientists Die
5、go Kersting and Cristina Linares have found that some coral species are able to recover from harmful warming events through a unique survival strategy (策略)known as “rejuvenescence(复壮)” among corals in the Mediterranean Sea.The findings represent some rare good news for corals around the world,which
6、are facing numerous severe threatsmost notably,climate change.“The main threats are climate change,overfishing,pollution and coastal urbanisation,” Kersting said.“But currently,climate change is probably the one causing the most coral cover declines.Warming stresses corals up to a point that may cau
7、se death.Some corals bleach (白化) before dying.Other corals do not bleach but die directly.” He went on,“Our findings are significant because this survival strategy was only known from fossil corals that existed hundreds of millions of years ago.It is the first time that it has been found in a living
8、 coral.Thanks to our findings,we know now that some corals are able to recover,but unfortunately this is not enough in the current climate change context.”For their research,Kersting and Linares monitored 243 colonies of the endangered reef-building coral Cladocora caespitosa(丛生) in Spains Columbret
9、es Islands Marine Reserve over 16 years,starting in 2002.The monitoring revealed that Cladocora caespitosa in the Mediterranean uses rejuvenescence to cope with warming events.This process involves the polyps(息肉) or the individual coral animals in a colonyshrinking inward and abandoning their skelet
10、ons(骨骼) during warm periods,before rejuvenating at a later point.“What happens is that some polyps in a coral colonysometimes just onereduces completely its dimensions and partially retreats from its skeleton,” Kersting said.“Once the stressful event is over,the shrunken or rejuvenated polyp recover
11、s its size and builds up a new skeleton.Eventually,it begins to reproduce itself through budding and begins to cover the dead colony surfaces.”He continued,“The results were very surprising because I started to observe colonies that were dead years ago,that were showing living parts many years after
12、 their death.”1.What is the greatest threat to corals now?A.Overfishing.B.Light pollution.C.City growth.D.Climate change.答案D解析细节理解题。根据第二段中的“But currently,climate change is probably the one causing the most coral cover declines.”可知,珊瑚现在面临的最大威胁是气候变化。2.What can we learn about the survival strategy?A.It
13、 is the cause of warming events.B.It was found for the first time.C.It will bring hope for the endangered corals.D.It represents the evolution of the corals.答案C解析细节理解题。根据第二段中的“Thanks to our findings,we know now that some corals are able to recover,.”可知,再生生存策略将为濒临灭绝的珊瑚带来希望。3.What does paragraph 3 mai
14、nly talk about?A.How the extreme corals forms.B.How the polyps survive their competitors.C.How the research was conducted.D.How the coral species manages to recover and regrow.答案D解析段落大意题。根据第三段中的“For their research,Kersting and Linares monitored .warming events.”可知,第三段主要介绍珊瑚再生这一过程。4.What can best rep
15、lace the underlined word “retreats” in paragraph 3?A.Withdraws.B.Unfolds.C.Benefits.D.Steals.答案A解析词义猜测题。根据本段中的“Once the stressful event is over,.to cover the dead colony surfaces.”可知,一旦压力事件结束,萎缩的或恢复活力的珊瑚虫会恢复其大小并会建立一个新的骨骼。最终,它开始通过发芽繁殖,并开始覆盖死去的表面。故当有压力事件发生时,珊瑚虫会从珊瑚上“撤退”。四、语篇填空I had heard of the killer
16、s that helped whalers catch huge whales.When I worked at a whaling station,I 1.(witness) it many times.One afternoon,I ran down to the shore in time to see an enormous animal 2.(throw) itself out of the water.George,one of the whalers,told me that it was Old Tom,the killer,3. was telling us theres a
17、 whale.Another whaler 4.(yell) out to announce a whale hunt.We immediately headed out into the bay,with Old Tom 5.(show) us the way.Using a telescope we saw that several 6.(kill) were throwing themselves 7. top of the whales blow-hole to stop it breathing,while others were stopping it diving or 8.(f
18、lee) out to sea.Then the man in the bow of the boat aimed at the whale and killed it.These killers never harmed 9. attacked people.Once when we were out in the bay,the sea was rough,for which James was carried away by waves.Worse still,there was a shark.10.(fortune),Old Tom rescued James.答案1.witnessed2.throwing3.that/who4.yelled5.showing6.killers7.on8.fleeing9.or10.Fortunately