19.When you buy cooking oil in the supermarket,you may notice that some brands are labeled as"GM (genetically modified 轉(zhuǎn)基因)-free".So,what is genetic modification?Are GM foods safe?
These questions have been put back into the public attention recently.On Nov 19,the Food and Drug Administration (FDA) in the US announced that it had approved the AquAdvantage salmon to go on the market,making it the first GM animal to be approved as food anywhere in the world.
GM foods are plants or animals that have been given a gene from another plant or animal to make them stronger in some way.The AquAdvantage salmon contains a gene from another type of salmon that makes it grow faster.
Although the FDA has said"food from the fish is safe to eat",some believe that scientists can't completely understand the potential health risks of GM foods,simply because they're so new.Others worry that the fish could escape into the wild and cause ecological problems.
GM crops have experienced the same public argument,even though GM technology cuts down on the use of pesticides(殺蟲劑) on crops and increases output.
While GM animals are new,GM crops have already appeared on our plates:A total of 28countries in the world including the US,Brazil and India planted 181.5million hectares (1.815million km2)of GM crops in 2014,according to the International Service for the Acquisition of Agri-biotech Applications.In China,we grow GM cotton and papaya and import GM soybeans,corn,rape,cotton and beets from abroad.
Due to safety worries,many countries have regulations for producing and selling GM foods.
In European Union countries,each GM food must be approved before it can be used.This process can take up to 17months.The origin of all GM foods must also be traceable,and all food with a GM content of more than 0.9percent must also be labeled,according to EU website europaeu.
The US is less strict about GM foods.According to FDA regulations,companies introducing new GM foods to the market should report them at least 120days before release.The labeling is voluntary,except that a product cannot be labeled as"GM-free"if genetically modified materials are used.
In China,GM foods can only be produced after strict tests by the Ministry of Agriculture and it's sure that they are safe.All food that is made from GM crops or contains GM ingredients must be clearly labeled on the wrapper.
32.According to the text,the AquAdvantage salmonC.
A.tastes better than normal salmon    
B.is a product that mixes several types of fish
C.has a gene from a different type of salmon    
D.remains to be approved in several countries
33.One of the reasons for many people to worry about the AquAdvantage salmon is thatB.
A.the gene that makes them grow faster can work on humans too
B.there are possible health risks that even scientists might not have figured out yet
C.they could possibly become threats to other wild species
D.they are not nutritious enough or might taste strange
34.From the text,it can be concluded that GM cropsB.
A.no longer cause any public argument
B.have already been planted in some countries
C.a(chǎn)re popular because they don't need pesticides
D.can increase output,making them welcome in countries like Japan
35.Which of the following is TRUE about regulations for producing and selling GM food?D
A.All food with GM content must be labeled in European countries.
B.In the US,the AquAdvantage salmon will have to be labeled as GM food.
C.In France or Germany,every GM food that is about to go on the market must be reported at least 120days before release.
D.In China,all food that is made from GM crops or contains GM ingredients must be clearly labeled on the package.

分析 本文介紹關(guān)于轉(zhuǎn)基因食物的一些情況.

解答 32.C,細(xì)節(jié)理解題,根據(jù)第三段第二句The AquAdvantage salmon contains a gene from another type of salmon that makes it grow faster.可知,The AquAdvantage salmon 包含了一種能使它生長(zhǎng)更快的基因類型,故答案為C.
33.B,細(xì)節(jié)理解題,根據(jù)第四段中some believe that scientists can't completely understand the potential health risks of GM foods,simply because they're so new,一些人認(rèn)為科學(xué)家還不能完全明白基因食品中潛在的健康冒險(xiǎn),只是因?yàn)樗鼈兪侨绱诵碌臇|西,故答案為B.
34.B,推理判斷題,根據(jù)第八段第一句In European Union countries,each GM food must be approved before it can be used.歐洲很多國(guó)家,每一種轉(zhuǎn)基因食品必須在使用前得到批準(zhǔn),The US is less strict about GM foods美國(guó)對(duì)轉(zhuǎn)基因食品的要求不太嚴(yán)格,In China,GM foods can only be produced after strict tests by the Ministry of Agriculture and it's sure that they are safe在中國(guó),基因食品在農(nóng)業(yè)部嚴(yán)格確保安全后才可以生產(chǎn),故答案為B.
35.D,細(xì)節(jié)理解題,根據(jù)最后一句All food that is made from GM crops or contains GM ingredients must be clearly labeled on the wrapper.所有由轉(zhuǎn)基因作物制成的或含有轉(zhuǎn)基因成分的食品一定要清晰地包裝上標(biāo)簽,故答案為D.

點(diǎn)評(píng) 解答任務(wù)型閱讀理解題,首先對(duì)原文材料迅速瀏覽,掌握全文的主旨大意.因?yàn)殚喿x理解題一般沒有標(biāo)題,所以,速讀全文,抓住中心主旨很有必要,在速讀的過程中,應(yīng)盡可能多地捕獲信息材料.其次,細(xì)讀題材,各個(gè)擊破.掌握全文的大意之后,細(xì)細(xì)閱讀每篇材料后的問題,弄清每題要求后,帶著問題,再回到原文中去尋找、捕獲有關(guān)信息.最后,要善于抓住每段的主題句,閱讀時(shí),要有較強(qiáng)的針對(duì)性.對(duì)于捕獲到的信息,要做認(rèn)真分析,仔細(xì)推敲,理解透徹,只有這樣,針對(duì)題目要求,才能做到穩(wěn)、準(zhǔn).

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語 來源: 題型:閱讀理解

9.Cyberspace,the connections between computers in different places,considered as a real place where information,messages and pictures exist,mirrors the real world in many ways.People ask for information,play games,and share hobbies.Others buy and sell products.Still others look for friendship,or even love.
Unlike the real world,however,your knowledge about a person is limited to words on a computer screen.Identity and appearance mean very little in cyberspace.Rather,a person's thoughts-or at least the thoughts they type-are what really count.So even the shyest person can become a chat room star.
Usually,this"faceless"communication doesn't create problems.Identity doesn't really matter when you're in a chat room discussing politics or hobbies.In fact,this emphasis(強(qiáng)調(diào),重視) on the ideas themselves makes the Internet a great place for exciting conversation.Where else can so many people come together to chat?But some Internet users want more than just someone to chat with.They're looking for serious love relationships.Is cyberspace a good place to find love?That answer depends on whom you ask.Some of these relationships actually succeed.Others fail miserably.
Supporters of online relationships state that the Internet allows couples to get to know each other intellectually first.Personal appearance doesn't get in the way.But critics of online relationships argue that no one can truly know another person in cyberspace.Why?Because the Internet gives users a lot of control over how others view them.Internet users can carefully craft their words to fit whatever image they want to give.And they don't have to worry about what their"nonverbal"(非言語交際的)communication is doing for their image.In a sense,they're not really themselves.
All of this may be fine if the relationship stays in cyberspace.But not knowing a person is a big problem in a love relationship.With so many unknowns,it's easy to let one's imagination"fill in the blanks."This inevitably(不可避免地) leads to disappointment when couples meet in person.How someone imagines an online friend is often quite more different than the real person.So,before looking for love in cyberspace,remember the advice of Internet pioneer Clifford Stoll:"Life in the real world is far richer than anything you'll find on a computer screen."
63.According to the passage,chatting in the cyberspaceB.
A.needs people to be rich in knowledge       
B.puts emphasis on people's thoughts 
C.a(chǎn)llows people to discuss politics secretly
D.stresses more about people's identity
64.People who are against online love thinkD.
A.it is hard to protect t he other's identity
B.the faceless communication is exciting
C.what is said online is under control of the Internet
D.one may not show the real self in cyberspace
65.By saying"With so many unknowns,it's easy to let one's imagination‘fil l in the blanks'",the writer means thatD.
A.the Internet makes it easy for people to imagine how others view them
B.the Internet allows people to get more information about their loved ones
C.people usually get to know each other by chance through the Internet
D.people may be disappointed when they meet in person
66.We can infer from the last paragraph that CliffordB.
A.demands to develop the computer system
B.supports to look for love in the real life
C.encourages people to enjoy modern life
D.believes it hopeless to find love online.

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

10.I still remember-my hands and my fingers still remember-what used to lie in store for us on our return to school from the holidays.The trees in the school yard would be in full leaf again and the old leaves would be lying around like a muddy sea of leaves.
"Get that all swept up!"the headmaster would tell us."I want the whole place cleaned up,at once!"There was enough work there,to last over a week.Especially since the only tools with which we were provided were our hands,our fingers,and our nails."Now see that it's done properly,and be quick about it,"the headmaster would say to the older pupils,"or you'll have to answer for it!"
So at an order from the older boys we would all line up like peanuts about to cut and gather in crops.If the work was not going as quickly as the headmaster expected,the big boys,instead of giving us a helping hand,used to find it simpler to beat us with branches pulled from the trees.In order to avoid these blows(毆打),we used to bribe(賄賂) the older boys with the juicy cakes we used to bring for our midday meals.And if we happened to have any money on us,the coins changed hands at once.If we did not do this,if we were afraid of going home with an empty stomach or an empty purse,the blows were redoubled.They hit us so violently and with such evil enjoyment that even a deaf and dumb person would have realized that we were being whipped(抽打) not so much to make us work harder,but rather to beat us into a state of obedience(服從) in which we would be only too glad to give up our food and money.
Occasionally one of us,worn out by such calculated cruelty,would have the courage to complain to the headmaster.He would of course be very angry,but the punishment he gave the older boys was always very small-nothing compared to what they had done to us.And the fact is that however much we complained,our situation did not improve in the slightest.Perhaps we should have let our parents know what was going on,but somehow we never dreamed of doing so; I don't know whether it was loyalty or pride that kept us silent,but I can see now that we were foolish to keep quiet about it,for such beatings were completely foreign to our nature.

26.The statement"my hands and my fingers still remember"(Para.1)means thatD.
A.the author's hands were severely injured in the cleaning up
B.the author seldom did such hard work as the cleaning up
C.the author was bullied by the big boys in the cleaning up
D.the author's hands were his only tool for the cleaning up
27.The headmaster would tell the students to clean up the school yard at the beginning of the term becauseB.
A.he was too lazy
B.there were many fallen leaves on the ground
C.the school yard was covered with mud
D.the students didn't finish their homework
28.The headmaster asked the older boys toC.
A.beat those who worked slowly
B.treat the small boys as peanuts
C.take charge of the process of the cleaning up
D.do the cleaning up all by themselves
29.According to Para.3,if the author had any money on him,he most probablyA.
A.gave it to the big boys so as to please them
B.gave it as a bribe to the headmaster
C.spent it all on his midday meal
D.spent it buying midday meals for the big boys
30.When receiving complaints,the headmaster would deal with the big boys by means ofA.
A.slight punishment  
B.harsh criticism
C.complete indifference  
D.good beatings.

查看答案和解析>>

科目:高中英語 來源: 題型:填空題

7.Building Trust in a Relationship Again
Trust is a learned behavior that we gain from past experiences,(16)B Trust is a risk.But you can't be successful when there's a lack of trust in a relationship that results from an action where the wrongdoer takes no responsibility to fix the mistake.
Unfortunately,we've all been victims of betrayal.Whether we've been suffer from,lied to,misled,or cheated on,there are different levels of losing trust.Sometimes people simply can't trust anymore,(17)E.It's understandable,but if you're willing to build trust in a relationship again,we have some steps you can take to get you there.
(18)AHaving confidence in yourself will help you make better choices because you can see what the best outcome would be for your well-being.
(19)CIf you've been betrayed,you are the victim of your circumstance.But there's a difference between being a victim and living with a"victim mentality".At some point in all of our lives,we'll have our trust tested or violated.
You didn't lose"everything".Once trust is lost,what is left?Instead of looking at the situation from this hopeless angle,look at everything you still have and be thankful for all of the good in your life(20)Ginstead,it's a healthy way to work through the experience to allow room for positive growth and forgiveness.

A.Learn to really trust yourself.
B.It is putting confidence in someone.
C.Stop regarding yourself as the victim.
D.Remember that you can expect the best in return.
E.They've been too badly hurt and they can't bear to let it happen again.
F.This knowledge carries over in their attitude toward their future  relationships.
G.Seeing the positive side of things doesn't mean you're ignoring what happened.

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

14.Twelve years ago,Rachel Miller was lost when it came to her son John.The 7-year-old was seriously disabled because of his autism(自閉癥).Unable to speak,he withdrew from people at school and,worse still,from his family.
In March 2003,Miller was introduced to Jeff Hancock,a one-on-one therapist(治療師)for people with autism.Hancock was hired to be John's companion.The two would go people-watching at the mall in Stuart,F(xiàn)lorida,on the weekends.Hancock chatted throughout their trips,even though John couldn't talk back.
Their relationship developed when Hancock introduced John to the Special Olympics in Martin County.Whenever John was running or bing active,he was smiling.When John turned 12,Hancock introduced him to track at the Special Olympics.For the first three years,the air just observed the sport by watching practices and events.Hancock worked daily with John,showing him everything,including where to sit,stand and walk,so he would understand the flow of the events.
In May 2014,John's training brought him to the Special Olympics State Summer Games in Orlando.The 18-year-old was competing in the 800meters and the 110-meter hurdles.
As the 800was setting up,Miller remembered,she pressed her face against the fence,anxiously waiting for John to compete.But as soon as the race started,her fears melted away,and all Miller saw was an athlete,her athlete."I just wanted to see the best performance.It seemed much more significant than whether he would ever speak or respond to me,"she said.
John ended up winning the gold medal for the 800.Sports completely changed John,and Miller said that is because of Hancock."A person with a disability can feel hopeless and isolated(孤獨(dú)的),and I think that can happen to parents,too.Jeff probably saw that with us,"Miller said,thinking back to when Hancock first met their family.
21.The first paragraph mainly tells usC.
A.how Rachel Miller felt 12years ago
B.why John became disabled
C.that John wasn't willing to communicate
D.when John became seriously disabled
22.How did Jeff Hancock help John?D
A.By encouraging him to speak to others.
B.By finding him a better training center for treatment.
C.By employing a one-on-one therapist for him.
D.By introducing him to the Special Olympics.
23.When she saw John was an athlete in the 800meters,Miller feltA.
A.Delighted     
B.Curious   
C.Fearful   
D.Confused
24.What can be the best title for the text?B
A.A Disabled Boy with Autism
B.Disabled Boy Turning Running Champion
C.A One-to-one Therapist
D.A Special Olympic Games.

查看答案和解析>>

科目:高中英語 來源: 題型:填空題

4.眾所周知,研究人員工作中細(xì)心與否有時(shí)意味著成敗之別.(difference)As is known to all/As we all know,whether a researcher is careful or not in his work sometimes means the difference between success and failure..

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

11.In the past,Americans used to think of the United States as a"melting pot"of immigrants(移民) from many different cultures to the United States,their old ways melted away and they became part of a completely new culture.The United States was likened to a big pot of soup,which had bits of flavor(味道,滋味) from each different culture.All of the different cultures were so well blended(混合,摻雜) together that it formed its own new flavor.?
Today,Americans realize that the simple"melting pot"theory is less true.Instead,different groups of people keep many of their old customs.Often groups of Americans from the same culture band together.They live together in distinctive communities,such as"Chinatowns"or"Little Italy"-areas populated almost exclusively(惟一,僅) by Americans of a single ethnic group-which can be found in many large American cities.Living in ethnic neighborhoods gives new Americans the security of sharing a common language and common traditions with people who understand them.?
In time,however,people from different backgrounds mix together.They also mix with native-born Americans.Old traditions give way to new customs.The children of immigrants are often eager to adopt new,American ways.They often want to dress in American?fashions,to speak English and to follow?American?social customs.By one estimate(估計(jì)),about 80 percent of European immigrants marry outside their own ethnic groups by the time they reach the third generation.Third generation means that their great-grandparents were immigrants.Yet as successive generations become more"Americanized",they often retain significant elements of their ethnic country.

28.What does the text mainly talk about?D
A.The American way of life.
B.Immigrants and native-born Americans.
C.Old traditions and new customs.
D.The multi-cultural society of the United States.
29.Why does the author mention"Chinatowns"in the second paragraph?A
A.To give an example that many people keep their old customs.
B.To show that Chinese cherish their old traditions.
C.To contrast(對(duì)比) the Chinese way of life with that of the Italian's.
D.To give an example of the Americanization.?
30.The underlined word"ethnic"in the last sentence most probably meansB.
A.moral
B.national
C.cultural
D.social
31.The underlined word"Americanized"generally meansD.
A.美國(guó)人
B.研究美國(guó)社會(huì)的專家
C.有關(guān)美國(guó)的史料
D.美國(guó)化的

查看答案和解析>>

科目:高中英語 來源: 題型:信息匹配

8.Pubs have been the cornerstone of British society for hundreds of years:Over the years,British Pubs have developed many traditions.Had you visited a pub in the 1990s,yon might have noticed the ringing of the bell around 11p.m.,signaling that the pub was about to close.(36)E
During World War I,the British Government decided that pubs must close at nine thirty in the evening (later to change to 11p.m.).(37)BRinging a bell was a clear signal to let everyone know that the  time was about to close.
(38)GBefore that depending on what kind of entertainment a place offered,there was a different license,for example a cinema needed a different license form a theater.A pub needed a different license from a night cafe.The different licenses that existed at the time were combined into one.Additionally,every three years the person responsible for the pub had to renew their license which was valid for only one  location.This period of validity was extended to ten years and also the license was able to transfer from one location to another.(39)A It also became much easier and cheaper for owners to put on entertainment such as music bands.Cutting down on needless paperwork was predicted to save l.97billion pounds over ten years!One of the biggest effects,however,was that ninety years after the 11p.m.closing time was introduced,pubs were able to decide when they would close.(40)D

A.Therefore,it became easier to apply for and process applications.
B.This was to minimize the risk of tired workers and potential loss in productivity.
C.British troops were fighting fierce battles with their enemies.
D.And they can have more flexibility in terms of opening hours.
E.How did this come about?
F.Do you want to visit a British pub?
G.Later,however,there was a major shake up in the licensing laws.

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

9.Nobody can go back and start a new beginning,______ anyone can start now and make a new ending.(  )
A.forB.andC.butD.so

查看答案和解析>>

同步練習(xí)冊(cè)答案