5．On a recent trip to California，I stopped by Natural Bridges，where the monarch butterflies overwinter．Many years ago，I livedclose enough to it that I could walk there regularly and study their gatherings-the most memorable experiences when living in California，This visit，however，turned out to be disappointing．Though the way to the protected monarch garden looked just as I remembered it，I spotted only a few butterflies there．So I had to drive about a mile south to Lighthouse Field a more open area visited by large numbers of bikers，dog walkers and tourists．Many monarehs-at least several hundred-gathered in a small forest of pines there．Why had they moved to this less hospitable habitat-John Dayton，a biologist from San Jose provided an answer．During the 1990s，a deadly disease killed off most large pines sheltering the monarch habitats at Natural Bridges，forcing monarchs to seek shelter elsewhere．Still，since the mid-1990s，the number of overwintering monarchs in California has declined by nearly 90 percent．Butterfly populations at Santa Paula  alone，for example，have dropped from about 120，000 to less than 1，000-the lowest figure in two decades．
In California，coastal development has reduced the area suitable for overwintering monarchs． Illegal logging，poorly regulated tourism and water withdrawals near the butterfly habitais are also  endangering the butterflies．
Throughout the butterflies'North American range，declines in milkweed plants-which monarchs need to reproduce-are also knocking down the insect's numbers．Chemicals are widely applied，wiping out the milkweed once growing in the agricultural land．
Climate change may worsen the monarchs'situation．As atmospheric levels of CO2 continue to rise，milkweeds are likely to produce fewer toxic compounds（有毒化合物） that protect both butterflies and caterpillars （幼蟲） from their enemies．Milkweed leaves also may get tougher． Caterpillars will have a harder time chewing the leaves．
66．Why did the author feel disappointed during his revisit to Natural Bridges？C
A．Because it had been overpopulated with Monarchs．
B．Because the monarch's living habit was changed a lot．
C．Because fewer monarch butterflies overwintered there．
D．Because the people there were not so hospitable as before．
67．Where did the author find those monarchs moved？A
A．Natural Bridges                  B．Lighthouse Field                  
C．San Jose                         D．Santa Paula
68．What caused a sharp decline of overwintering monarchs according to Para 3？A
A．The loss of large pines．        B．A disease of monarchs．
C．Water pollution．                D．Too many caterpillars．
69．According to the passage，the decline of the milkweeds is connected withD．
A．coastal development              B．illegal logging
C．poorly regulated tourism        D．the abuse of chemicals
70．Which diagram shows correctly how the passage is developed？（P=paragraph）D

分析 本文屬于說明文閱讀，作者通過這篇文章主要向我們描述了monarch蝴蝶從原來過冬的棲息地遷往一處噪雜的松樹林里，然而這里的環(huán)境其實并不太適合它們．其中的原因有四個方面：疾病導(dǎo)致原棲息地的松樹大多死亡，沿海開發(fā)減少了蝴蝶的棲息地，為蝴蝶繁殖所必須的一種野生植物的減少和空氣中二氧化碳含量的增加．

解答 66．C．推理判斷題．根據(jù)文章第一段"This visit，however，turned out to be disappointing．Though the way to the protected monarch garden looked just as I remembered it，I spotted only a few butterflies there"雖然公園的路看起來還像我記憶中那樣，我發(fā)現(xiàn)只有少數(shù)的蝴蝶在那里，因此十分失望；故選C．
67．A．細節(jié)理解題．根據(jù)文章第一段"I stopped by Natural Bridges，where the monarch butterflies overwinter"可知作者在Natural Bridges停下是為了去看monarch 蝴蝶，因此過去作者是能在這里找到蝴蝶的；故選A．
68．A．細節(jié)理解題．根據(jù)文章第一段"a deadly disease killed off most large pines sheltering the monarch habitats at Natural Bridges，forcing monarchs to seek shelter elsewhere"可知一種致命的疾病殺死了大部分大松樹，迫使蝴蝶到其它地方尋求庇護；故選A．
69．D．細節(jié)理解題．根據(jù)文章倒數(shù)第二段"Chemicals are widely applied，wiping out the milkweed once growing in the agricultural land"化學(xué)品廣泛應(yīng)用，消滅農(nóng)業(yè)土地上的乳草屬植物；可知乳草數(shù)量的減少是由于化學(xué)藥品的濫用；故選D．
70．D．篇章結(jié)構(gòu)題．通讀全文，可知文章第一二兩段講作者去看蝴碟發(fā)現(xiàn)蝴蝶的數(shù)量很少，三至六段說明了導(dǎo)致蝴蝶減少的四個原因；故選D．

點評 考察學(xué)生的細節(jié)理解和推理判斷能力，做細節(jié)理解題時一定要找到文章中的原句，和題干進行比較，再做出正確的選擇．在做推理判斷題不要以個人的主觀想象代替文章的事實，要根據(jù)文章事實進行合乎邏輯的推理判斷．

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：閱讀理解

6．
For：Doug Smith，Director of wolf recovery，Yellowstone National Park
In the world today there is so much we are losing； more and more species disappear from the earth every year．The time has come to put something back，to restore（恢復(fù)）to treat some of the old wounds enforced on nature over the years．
Wolves are animals killing and eating other animals in North America．They play an important role in keeping the continent healthy．Most places don't have enough wild country to make their restoration possible，which means it's even more important to restore wolves where conditions are right，places like Yellowstone，which has both a high level of wildness，as well as abundant creatures that wolves hunt and eat for living．
Some who oppose wolf restoration have a human centered point of view that the earth is here for humans，we can use it whenever we want and for whatever purpose．But wolves offer us a chance to live another way-a way to learn to live with other life forms．		Against：Larry Bourret，Vice President，Wyoming Farm Bureau
What does wolf introduction to Yellowstone mean？To the average citizen it probably just means introducing wolves to Yellowstone．There would be no unfavorable effects because few people live near Yellowstone．
But to farmers it means introducing wolves，which wander over vast areas-in and out of the park-onto their farms．Wolves eat meat-as in the cattle，sheep that keep farmers in business．Introduction apparently also means lawsuits by environmental groups attempting to remove livestock（家畜，牲畜） from federal lands．To farmers，who own private lands in the same area，it means the possibility of ?nancial ruin．To farmers it is a form of land use restrictions．To farmers introducing wolves means taking away the farmers'livelihoods without just compensation．Why do people not want a nuclear power plant built in their backyard？For the same reason farmers do not want wolves introduced into their backyard．
60．What are the two passages mainly about？C
A．How to keep the balance of nature．
B．How to increase the number of wolves．
C．Whether to introduce wolves to Yellowstone．
D．Whether to remove livestock away from federal lands．
61．According to the passage Doug Smith isC．
A．a(chǎn) private land owner
B．a(chǎn)n enthusiastic hunter
C．a(chǎn) wildlife conservationist
D．a(chǎn) national park administrator
62．What are the farmers concerned about？B
A．Being forced to leave their homes．
B．Suffering heavy financial loss．
C．Having to sell their farmland．
D．Being controlled by wolves．
63．Why does Larry Bourret mention"nuclear power plant"？B
A．To summarize his opinion．
B．To make his view persuasive．
C．To tell the danger of nuclear power plant．
D．To introduce the background of wolf recovery．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

7．I'm going to pay a visit to Mr Wang，without _______help I couldn't have been admitted to a   key university．（　�。�
A．whoB．whoseC．whomD．which

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

1．一What do you think I ought to see first in London？I'm told one ought to see the British Museum．Do you think I shall have time for that？
-（61）BBut if I were you，I should leave that for some other day．You could spend a whole day there．It's much too big to be seen in an hour or so．
--I suppose it is．（62）F
一That's not a bad idea．You could spend a couple of hours there comfortably，or even a whole afternoon，watching the wild animals and all those birds．You could have tea there too．
-I'll do that，then．How  do I get there？
一 （63）AWhere are we now？Oh，there's that big building．I think your best
way from here is to take Baker Street…，
-（64）D
-Oh，no A quarter of an hour or so，but； if you re in a Hurry，why not take a taxi？
一I think I will．（65）ETaxi!
A．Let me see．
B．Well，you might．
C．What time is it now？，
D．Is it much of a walk？
E．Ah，here's one coming．
F．What about going to the zoo？
G．Must I stay in London for long？

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

8．Tom works with videos．To him，it ________ to have the most up-to-date version of the video-editing software．（　�。�
A．makes senseB．pays offC．takes effectD．gets round

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

10．The last thirty years    the greatest number of laws stopping our rights and progress．Until today we have reached a stage     we have almost no rights at all．（　�。�
A．saw；whichB．see；where
C．are seeing；in whichD．have seen；where

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

17．Two girls living next door to each other-a seemingly plain scene that has two very different life．stories behind it．
Chi Zhen，an 18-year-old student in Seville，Spain，used his camera to tell the story of two lives，which went widespread online．Comments on the photos indicate that they have inspired many，to believe that the future is in their own hands．
Chi has seen many youths living life without a goal，wasting their time and blaming bad luck for it．
Feeling regret for them，he took a series of photos of his friends Veronica and Anna Maria，both freshmen at the University of Seville in Spain．They live completely different life styles and are getting opposite results．
Chi hopes the photos will inspire those who have let go of their own fate （命運）．
In the photos，Anna Maria，a Spanish girl，can be seen watching a TV programme．She spends most of her time in front of her laptop．She rarely goes out，because she thinks she's not attractive and doesn't know what to say in social situations．"'I'm not as lucky as Veronica，"she often says．
But she doesn't know that while she's wasting time watching TV，-Veronica，the"lucky"girl next door，has taught herself four foreign languages and traveled to many places．She goes to the library frequently  and her extensive knowledge and experience allow her to take part in any conversation and become the center of attention．
Chi thinks that Anna Maria resembles many of his Chinese．friends who study abroad．They are trapped to their little circles，never trying to change their fate．/'They say'maybe I'll do it in my next life'，but they are in their 20s，their best time．How can they give up hope and accept this as their life？"Chi says．
The influence of the photos has gone far beyond what Chi expected．One user commented on his photos on Renren．com，saying，"A wall separates two worlds，and the life we have depends on what we do．"Another is determined to make a change right away．"I'm turning off my laptop and not watching TV anymore，"he wrote．
29．What would be the best title of the text？D
A．A lucky dog in social circles                      
B．Comments on the photos
C．A photo separates two worlds．
D．Tales of two opposite lives
30．It can be concluded from the widespread photos online that _A'
A．life one has depends on what one does               
B．Anna is an attractive girl with a goal
C．Veronica is much luckier than Anna             
D．Chi wastes his time in taking photos
31．According to the text，VeronicaC．
A．likes watching TV programmes               
B．seldom chats with others
C．is often the centre of attention                 
D．lets go of her own fate
32．Many of Chi's Chinese friends who study abroadD
A．determine to make a change right away           
B．like to travel to different places of interest
C．believe they will do better in next life     
D．a(chǎn)re more willing to live in little circles'

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

14．Scientists have always been interested in the high level of organization in ant societies．American researchers have watched ants build life-saving rafts （筏子） to keep afloat during floods．They also have documented how ant colonies choose their next queen----the female whose job is to produce eggs．
New technology is helping to improve researchers'understanding of the insects．But there is still a lot to be learned．
Fire ants living in Brazilian forests are perfectly at home in an environment where flooding is common．To save themselves，the insects connect their legs together and create floating rafts．Some ant rafts can be up to 20centimeters wide．
David Hu who is a mechanical engineer with the Georgia Institute of Technology，also known as Georgia Tech，says，"If you have 100ants，which means 600legs，99percent of those legs will be connected to a neighbor．So they're very，very good at maintaining this network．"
David Hu and other Georgia Tech researchers wanted to study ants and the secret of their engineering．They froze ant rafts and then look at them with the help of computed technology，or CT，images．The pictures showed that larger ants serve in central positions to which smaller ants hold．The larger ants form pockets of air that keep the insects afloat．
Scientists say small robots or materials that can change shape could be programmed in a similar way，working towards a shared goal．
Researchers at North Carolina State University are also studying ants．They examined how Indian jumping ants choose the leader of the colony when they lose their top female or queen．Researcher Clint Penick says all the worker ants in the colony are females．His team found that the worker ants start a series of competitions or battles and that some workers become physically larger．

32．The duty of the queen ants is toD．
A．build rafts       B．keep organized
C．keep guard        D．lay eggs
33．The author takes fire ants as an example to tell usD．
A．how ants seek food perfectly
B．how ants connect their legs together
C．how ants communicate with each other
D．how ants save themselves from floods
34．Which of the following is true according to the passage？C
A．Ants know the way to form a harmonious society．
B．The Georgia Tech researchers first discovered Indian jumping ants．
C．Small and shape-changeable things might work just like ants do．
D．All the worker ants in the colony are physically larger．
35．What's the best title of the passage？A
A．Ants'Ability to Organize         
B．Ants'Living Environment
C．The Life-saving Rafts of ants
D．The Election of the Queen Ant．

查看答案和解析>>

科目：高中英語 來源：2016-2017學(xué)年河北省唐山市高二下學(xué)期期中考試英語試卷（解析版） 題型：閱讀理解

An elderly carpenter was ready to retire. He told his employer of his plans to leave the house building business and live a more leisurely life with his wife, enjoying his extended family. He would miss the pay check, but he needed to retire.

The employer was sorry to see his good worker go and asked if he could build just one more house as a personal favor. The carpenter said yes, but in time it was easy to see that his heart was not in his work. He used shoddy materials to build the house. It was an unfortunate way to end his career.

When the carpenter finished his work and the employer came to inspect the house, he handed the front-door key to the carpenter. “This is your house,” he said, “my gift to you.”

What a shock! What a shame! If he had only known he was building his own house, he would have done it all so differently. Now he had to live in a home he hadn’t built very well.

It is the same with us. We build our lives in a distracted way, reacting rather than acting, willing to put up with less than the best. At important points, we don’t give the job our best effort. Then with a shock we look at the situation we have created and find that we are now living in the house we have built. If we had realized that, we would have done it differently.

Think of yourself as the carpenter. Think about your house. Each day you hammer a nail, place a board, or erect a wall, build wisely. It is the only life you ever build. Even if you live it for only one day more, that day deserves to be lived graciously and with dignity. The plague (牌匾) on the wall says, “Life is a do-it-yourself project.”

Who could say it more clearly? Your life today is the result of your attitudes and choices in the past. Your life tomorrow will be the result of your attitudes and the choices you make today.

1.Why was the carpenter ready to retire?

A. He wanted to have a relaxed life.

B. He found a better-paid job.

C. He could still survive without working.

D. He was tired of his job.

2.What does the underlined word “shoddy” in the second paragraph probably mean?

A. Beautiful. B. Best. C. Bad. D. General.

3.What is the main idea of the fifth paragraph?

A. We should build a good house to live in.

B. We always regret what we have done.

C. We should try our best to do things well.

D. We prefer to react, rather than act.

4.What does the author mainly want to tell us in the text?

A. We should build a house wisely.

B. Life is a do-it-yourself project.

C. Building a house is like building a life.

D. We should have the right attitude towards life.

查看答案和解析>>

同步練習(xí)冊答案