人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration课后复习题

SectionⅡ　LearningAboutLanguage

一、单句语法填空

1.No matter how bright a talker you are,there are times when it's better 　　　　　　(remain) silent. 

答案to remain

2.I've had many dreams since I was a child.Now my dream is 　　　　　　 (open) a cafe. 

答案to open

3.It's very important 　　　　　　　 (master) a foreign language. 

答案to master

4.Agriculture gave people their first experience of the power of technology 　　　　　 (change) lives. 

答案to change

5.This small group bike tour is a fantastic way 　　　　　(see) the world-famous cherry trees with beautiful flowers of Washington,D.C. 

答案to see

6.She pretended 　　　　　　　 (listen) to the manager,but actually she was thinking about something else. 

答案to be listening

7.The book is said to 　　　　　　　　　(translate) into over twenty foreign languages. 

答案have been translated

8.We're having a meeting in half an hour.The decision 　　　　　　　　 (make) at the meeting will influence the future of our company. 

答案to be made

二、将所给词汇用不定式结构连成一个句子(适当增加词汇)

1.he/has no choice/but/go to see him

答案He has no choice but to go to see him.

2.written/in pencil/the letter/difficult/make out

答案Written in pencil,the letter was difficult to make out.

3.she/is often heard/read English/aloud/in the morning

答案She is often heard to read English aloud in the morning.

4.in those days/my family/not/have/enough room/live in

答案In those days my family didn't have enough room to live in.

5.it/difficult/a foreigner/learn Chinese

答案It is difficult for a foreigner to learn Chinese.

6.keep up/the room temperature/he/added/some coal/into/the stove

答案To keep up the room temperature,he added some coal into the stove.

三、完成句子(用不定式结构)

1.老师做了她所能做的来帮助我的功课。

The teacher did 　　　　　　　　　　　　　　　　　　　　　help me with my lessons. 

答案what she could to

2.我感到自己很愚蠢,因为我不知道该说什么。

I felt silly because 　　　　 　　　　 　　　　　 　　　　　 　　　　　 　　　　　　. 

答案I didn't know what to say

3.我们很遗憾地说,这部电影不值得一看。

　　　 　　　　　 　　　　　 　　　　　　that the movie was not worth seeing. 

答案We regret to say

4.那个年轻人很乐意帮助住在周围的老年人。

The young man is very 　　　　　　 　　　　　 　　　　　 　　　　　 　　　　　　living around here. 

答案willing to help the old

5.天太黑了,我们看不到屋里的任何东西。

It is too dark 　　　　　 　　　　　 　　　　　 　　　　　 　　　　　 　　　　　 　　　　　 　　　　　. 

答案for us to see anything in the room

6.政府号召我们增加生产。

The government calls on us 　　　　　　　　　　　　　　　 　　　　　 . 

答案to increase our production

7.我们想知道在他困难的时候我们能做什么来帮他。

We want to know 　　　　 　　　　 　　　　　　　　　　　　help him when he is in trouble. 

答案what to do to

8.明天会议上要讨论的问题很重要。

The problem 　　　　　 　　　　　 　　　　　 　　　　　 　　　　　 　　　　　tomorrow is very important. 

答案to be discussed at the meeting

四、阅读理解

Blue whales are the largest animals ever known to have existed on the planet,and they can grow to a length of 100 feet and weigh more than 330,000 pounds.But recently researchers have found that these whales are on the move and they have migrated from California waters to areas off Canada and Alaska for the first time since commercial whaling ended in 1965.

The researchers identified 15 blue whales that had appeared off the coast of British Columbia and the Gulf of Alaska since 1997.Four of these whales were recognised as ones that were once sighted off California shores,suggesting that the whales were returning to an old migration pattern between the coasts.

Before commercial whaling began in the early 1900s,blue whales were found widely throughout the North Pacific and California waters.But from the 1920s to the 1960s,the whale population was severely reduced because of whale hunting.Blue whales never recovered in the North Pacific,making sightings in this area rare.However,much larger groups of whales have been observed close to California since the 1970s.

The scientists had previously thought that the California population was separate from the population that had historically lived in the North Pacific waters.But the current study shows that whales off the coast of British Columbia and the Gulf of Alaska are likely part of the California population.

To identify the blue whales,the researchers looked at photos of cetaceans taken in the North Pacific Ocean and compared them with a library of blue whale pictures taken along the West Coast of the United States and Southern Pacific.Up to now,the researchers are not quite sure why the whales are changing their migration patterns,but they suspect that the whales may be following their food moving farther north by the changes in ocean conditions.

1.According to the passage,blue whales are 　　　. 

A.following the fixed route of migration

B.dying out due to commercial whaling

C.moving from the south to the north

D.rarely found in the Southern Pacific

答案C

解析推理判断题。根据最后一段中的“...thewhalesmaybefollowingtheirfoodmovingfarthernorthbythechangesinoceanconditions.”可推出,蓝鲸正从南向北移动。故选C项。

2.The whale population in the North Pacific 　　　. 

A.is different from the California population

B.is probably part of the California population

C.has become the largest group since the 1970s

D.has lived there since the 1960s

答案B

解析细节理解题。根据第四段中的“ButthecurrentstudyshowsthatwhalesoffthecoastofBritishColumbiaandtheGulfofAlaskaarelikelypartoftheCaliforniapopulation.”可知答案选B项。

3.The underlined word “cetaceans” in the last paragraph probably means “　　　”. 

A.land creatures　　B.whale species

C.ocean conditions D.migration patterns

答案B

解析词义猜测题。根据最后一段中的“Toidentifythebluewhales,theresearcherslookedatphotosofcetaceanstakenintheNorthPacificOcean...”可知,为了辨认蓝鲸,研究者看在北太平洋拍的有关“cetaceans”的照片,所以“cetaceans”应该指的是鲸类。故选B项。

4.What might make blue whales migrate according to the researchers?

A.Commercial whaling. B.Weather conditions.

C.Life reproduction.  D.Food resources.

答案D

解析推理判断题。根据最后一段中的“...buttheysuspectthatthewhalesmaybefollowingtheirfoodmovingfarthernorthbythechangesinoceanconditions.”可知,研究者怀疑蓝鲸有可能跟随着它们的食物向北移动。故选D项。

五、语篇填空

In 1969,there were only 100 South American fur seals and sea lions making their homes along the coastline of the capital of Lima,Peru.They 1.　　　　　　(hunt) almost to extinction here,not only because of the value of their skin,but also because of the threat they posed 2.　　　　　 fishermen as fish hunters. 

Today,around the Palomino Islands,there are over 8,000 of these marine animals 3.　　　　　　(make) their homes.Much of the success of restoring the fur seal and sea lion population came from local fishermen in the coastal areas of Peru.They stepped up 4.　　　　　　 support these endangered species after the International Union for the Conversation of Nature (IUCU) sounded their alarm bell. 

Recently,the IUCU detailed how local fisheries have become efficient mangers.“The Fishermen's Union defines the area 5.　　　　　　  each local fishing collective is 6.(economic) dependent and assigns responsibility for these marine resources,explained the IUCU.”In this manner,the fishermen 7.　　　　　　　　 (they) have slowed economic migration from the Peruvian Highlands to 8.　　　　　　　(profit) but illegal marine activities,thus ensuring that the protected area develops well. 

Much of their 9.　　　　　　(motivate) for marine protection has come from 10.(see) their livelihood through new eyes—that is,they've recognised the rise of traditional fisheries and tourism.And their practice is one of the best practices for area-based conservation. 

答案1.were hunted　2.to　3.making　4.to　5.where　6.economically　7.themselves　8.profitable　9.motivation   10.seeing