2021-2022学年新教材人教英语选择性必修第四册课时作业：UNIT 3 SEA EXPLORATION 表达.doc

1、课时分层作业(九).阅读理解AOur tiny boat was ploughing through(费力穿过) the waves across the Indian Ocean and I was absolutely freezing.The further we got from the shelter of the land，the more I thought how foolish Id been to come along on this trip.The pilot of the boat looked almost 60 but，perhaps because of a l

2、ifetime on the open sea in the hot sun，was very fit and strong.I was wondering how he managed to find his way.To me，it seemed difficult enough to navigate a boat without any electronic equipment even on a sunny day.So at least we were safe.But this was not what we had come along for.The look on the

3、other divers faces suggested that now they were also doubtful that wed ever get the chance to see a whale sharkthese weather conditions were totally unsuitable for diving! None of us spoke.It seemed too much of an effort.Then suddenly the boatman stopped the engine.He said a few words in his own lan

4、guage to the diving instructor，who immediately jumped up from his seat and told us to get ready to dive.When I jumped into the grey sea，I was sure I wouldnt see anything.But then.there it was！An enormous whale shark，was slowly swimming through the water.I couldnt believe my eyesmy first whale shark!

5、 I hardly dared breatheI was afraid my streams of bubbles(气泡) might scare the huge creature away.And the other divers were equally awed.Slowly we approached this huge animal.It was swimming quite slowly and we were able to swim with it，looking at the beautiful markings on its back.I was still holdin

6、g my breath，telling myself that this huge fish was harmless! Then I reached out and touched it，stroking(轻抚) its thick skin.It was amazing how this giant suddenly gained speedwe watched it as it swam away from us，and a few moments later it was gone.【语篇解读】本文是记叙文。文章描述了作者第一次看鲸鲨的经历。1While riding a tiny b

7、oat across the Indian Ocean，the author Avolunteered to act as a pilotBfelt regret about his decisionCenjoyed the beautiful sunshineDtalked with other people happilyB推理判断题。由第一段“Our tiny boat was ploughing through (费力穿过) the waves.I thought how foolish Id been to come along on this trip.”可知，由于天气不好，作者对

8、自己出海看鲸鲨的决定感到后悔。2The author probably wanted to know how the boatman Akept fit in his spare timeBspent his life on the boatCnavigated his boat at seaDcommunicated with othersC细节理解题。由第二段的“I was wondering how he managed to find his way.To me，it seemed difficult enough to navigate a boat without any elec

9、tronic equipment even on a sunny day.”可知，作者最想知道这位船夫是如何在海上辨别方向的。3What was the purpose of the authors trip?ATo see a whale shark.BTo learn how to dive.CTo swim in the Indian Ocean.DTo save underwater creatures.A细节理解题。由第三段的“.doubtful that wed ever get the chance to see a whale shark”和最后一段作者描述他下水后看到鲸鲨的过

10、程可知，作者此行的目的是看鲸鲨。4How did the author feel after he jumped into the sea?ARather anxious and angry.BA little scared but excited.CDoubtful and disappointed.DA bit tired but later relaxed.B推理判断题。由最后一段可知，当看到鲸鲨这个庞然大物突然出现时，作者有一点害怕；再由他不敢相信自己的眼睛、与鲸鲨一起游泳和大胆轻抚鲸鲨可知，此时的他又有点兴奋。BIt is becoming increasingly importan

11、t for researchers to closely monitor our ocean life.However，observing sea creatures up close is almost impossible since human presence scares them.Now，thanks to The Soft Robotic Fish，also known as SoFi，researchers may be able to keep a close eye on sea creatures.Built by MIT Computer Science and Art

12、ificial Intelligence Laboratory(CSAIL)，the white remotecontrolled robot resembles the real fish，complete with a tail that waves from side to side.Though not the first autonomous underwater vehicle (AUV) created to monitor the oceans，SoFi settles many of the problems that have blocked the usefulness

13、of the previous robot fish.Previous AUVs have had to be linked to boats because radio frequency communications dont work well underwater.To overcome the problem，director of the CSAIL Daniela Rus and her team used sound waves.The technology can travel greater distances allowing divers to pilot SoFi f

14、rom up to 50 feet away.Also limiting the usefulness of traditional AUVs is the risk of collision.With the outside made of soft silicone(硅树脂) rubber and flexible plastic that keeps its inbuilt electronics dry，SoFi poses no such danger.“Collision avoidance often leads to unnecessary movement，since the

15、 robot has to settle for a collisionfree path，”says Rus.“In contrast，a soft robot is not only more likely to survive a collision but also could use it as information to form a more workable movement plan next time around.”During test dives，SoFi moved alongside the ocean life at depths of 50 feet for

16、 up to 40 minutes at a time，taking photos and making videos.The researchers say sometimes the fish would swim alongside the strangelooking robotfish out of curiosity，while at other times they took no notice of its existence.While SoFi presently only records video，future versions will include sensors

17、.The researchers also hope to make it more autonomous.“We imagine someday it might help us uncover more secrets from the amazing underwater world that we know so little about，” says Rus.【语篇解读】这是一篇说明文。文章介绍了SoFi的出现，使得研究人员或许能够近距离地观察海洋生物了。5What does the writer think of SoFi?AIt makes ocean creature dete

18、ction easier.BIt is the first AUV.CIt is closely controlled.DIt scares sea creatures away.A细节理解题。由第一段最后一句可知选A。6According to Para.3，which of the following is TRUE?ASound waves travel faster than radio.BSound waves work better than radio underwater.CPrevious AUVs use sound waves to communicate.DA boat

19、 travels along with SoFi on the water.B推理判断题。由第三段尤其是其中的“Previous AUVs have had to be linked to boats because radio frequency communications dont work well underwater.”可知选B。7How does SoFi deal with collision?AIt can benefit from its inbuilt electronics.BIt can avoid extra movement.CIt can smartly adj

20、ust its movement plan.DIt is set for a collisionfree path.C细节理解题。由第四段的“In contrast，a soft robot is not only more likely to survive a collision but also could use it as information to form a more workable movement plan next time around.”可知，SoFi通过灵活地调整它的运动计划来避免碰撞，故选C。8What will happen to SoFi in the f

21、uture?ASoFi can record videos.BSoFi will go invisible.CSoFi will be free from external control.DSoFi will be equipped with smart devices.D推理判断题。根据最后一段第一句“While SoFi presently only records video，future versions will include sensors.”可知，未来SoFi将配备智能设备。故选D。.读后续写阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。Durin

22、g my school days，whenever I was asked to write an essay (文章) about brave people and their brave deeds，I always focused on heroes in news reports risking their lives to save others.But from that day on，I could write how my Mom，in her determined way，saved our elderly neighbor.The event that stands out

23、 in my memory happened one morning when I was only 10 years old.I was doing my homework when I heard raised voices.At first I thought nothing of it since customers in the motorcycle shop directly below our flat often became loud，but I soon realized this time it was different.“Quick! Quick! Remove th

24、e motorcycles from the shop.” someone yelled.Then a thick burning smell filled the air.When I opened the front door of our flat to have a look outside，a thick cloud of smoke，billowing (汹涌) up from the ground floor，greeted me.It hit me that the motorcycle shop had caught fire.My Mom，who had been work

25、ing in the kitchen，hurried to the living room.We rushed out of the door and along the corridor(走廊) through the smoke.We were heading towards the stairway at the far end of the corridor when Mom stopped and thought for a while.She turned around and headed back the way we came.Puzzled but having no id

26、ea what she was doing，I followed her.It became clear soon that Mom had remembered the Korean lady in her 70s living next door to us，whom we called Jane.Mom began banging on the door，but got no answer.As the smoke thickened around us，I could see many of our neighborssome still in their pyjamas(睡衣)run

27、ning for safety.The thought of fear crossed my mind.“She must have already run for safety like everyone else! Lets rush downstairs！” I begged.But Mom refused to give up.“I know Janes still inside.” She said she was familiar with Janes daily routine and was certain she would still be sleeping.注意：1.续写

28、词数应为150左右； 2.请按如下格式作答。Paragraph 1：I noticed the flame was reaching up. Paragraph 2：Luckily，some neighbors passing by stopped and offered help. 【参考范文】Paragraph 1：I noticed the flame was reaching up.Frozen with fear，I stood rooted to the spot.I comprehended the gravity of the situation and held Moms h

29、and tightly.By then，both of us were coughing and our eyes were stinging.Time seemed to stand still，though we were probably there for only two or three minutes.I begged Mom to run for safety as quickly as possible.Mom tried to shield(挡住) her nose from the choking smoke and shook her head.She kept pou

30、nding against the door.I burst out crying.Paragraph 2：Luckily，some neighbors passing by stopped and offered help.A sense of strength immediately replaced the mounting fear and anxiety in our minds.Learning that Ms.Jane must be still in the room，they immediately forced the door open.Sure enough，Ms.Jane was lying in bed，unconscious.She was carried downstairs and then rushed to hospital，where she finally came to herself.Everybody felt relieved and our joy was immense.Mom was praised for her brave and selfless act，because of which she has been my hero ever since.