I can't find my key．Itmust have been left in my office．我找不到我的钥匙.它肯定是忘在我的办公室了．题目和参考答案——青夏教育精英家教网—

题目内容

13．I can't find my key．Itmust have been left in my office．（leave）
我找不到我的钥匙，它肯定是忘在我的办公室了．

分析我找不到我的钥匙，它肯定是忘在我的办公室了．

解答答案：must have been left
肯定：must；把某物忘在某地：leave sth+介词短语表示地点；句中leave与主语it之间构成动宾关系，要用被动；句意表达的是推测，对过去的推测要用情态动词加完成时态来构成．

点评翻译题在解题是首先要确定好句子的时态，然后要把握好短语表达，最后要注意句子结构．

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4．People have been wondering why elephants do not develop cancer even though they have lifespans（寿命）that are similar to humans，living for around 50 to 70 years．
    Now scientists believe they know why．A team at the University of Chicago，US has found that elephants carry a large number of genes that stop tumors（肿瘤）developing．To be precise，they found 20 copies of an anti-tumor gene called TP53 in elephants．Most other species，including humans，only carry one copy．
    According to the research，the extra copies of the gene improved the animal's sensitivity to DNA damage，which lets the cells quickly kill themselves when damaged before they can go on to form deadly tumors．
"An increased risk of developing cancer has stood in the way of the evolution of large body sizes in many animals，"the study author Dr Vincent Lynch told The Guardian．If every living cell has the same chance of becoming cancerous（癌变的），large creatures with a long lifespan like whales and elephants should have a greater risk of developing cancer than humans and mice．But across species，the risk of cancer does not show a connection with body mass．
    This phenomenon was found by Oxford University scientist Richard Peto in the 1970s and later named"Peto's paradox（悖论）"．Biologists believe it results from larger animals using protection that many smaller animals do not．In the elephant's case，the making of TP53 is nature's way of keeping this species alive．
    The study also found that when the same genes were brought to life in mice，they had the same cancer resistance as elephants．This means researchers could use the discovery to develop new treatments that can help stop cancers spreading or even developing in the first place．
"Nature has already figured out how to prevent cancer，"said Joshua Schiffman，a biologist at the School of Medicine，University of Utah，US．"It's up to us to learn how different animals deal with the problem so that we can use those strategies to prevent cancer in people．"
32．Why are elephants unlikely to develop cancer？D
A．They have a rather large body size．
B．Their genes suffer no DNA damage．
C．Certain genes in their body kill existing tumors．
D．They carry many genes to prevent tumors developing．
33．According to the passage，what has been a risk in the evolution of large animals？A
A．Deadly tumors．
B．The huge body mass．
C．Cells killing themselves．
D．Sensitivity to DNA damage．
34．What does the underlined part"This phenomenon"in Paragraph 5 probably refer to？B
A．Larger animals have protection from TP53．
B．The risk of cancer is not related to body size．
C．Larger animals suffer the same risk of cancer as smaller ones．
D．The larger animals are，the bigger risk of cancer they will have．
35．What can be concluded from the passage？C
A．Depending on nature is surely enough to fight against cancer．
B．The TP53 genes have proved useful in stopping cancer in people．
C．Humans are expected to prevent cancer with the making of TP53．
D．The extra copies of elephants'genes are used to cure cancer patients．

1．假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文．文中共有10处语言错误，每句中最多有两处．每处错误涉及一个单词的增加、删除或修改．
增加：在缺词处加一个漏字符号（∧），并在其下写出该加的词．
删除：把多余的词用斜线（\）划掉．
修改：在错的词下划一横线，并在该词下面写出修改后的词．
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者（从第11处起）不计分．
Dick is an Australian man，aged at 25，whose life is full of hardships．He was born without arms and legs．He used to be made fun by others．Everything seemed impossible to them．However，Dick never gave up．After many failure，he finally learned to swim，fish and even surf．That surprised us most is that he completed university education and get two degrees．And now he is the CEO of two companies．When asking about the secret of his success，he thinks a positive attitude is a key to success．Dick's story greatly inspired me．Compared with him，we are health．However，we are always frustrated when we face difficulties．I think Dick have set a good example to us．We should learn from him and never give up．

8．增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词．
删除：把多余的词用斜线（\）划掉．
修改：在错的词下划一横线，并在该词下面写出修改后的词．
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者（从第11处起）不计分．
I'd like tell you something about your life in this boarding school．I stay in a dormitory with three other girls，all of them are kind and nice．We get on well to each other and have become good friends．Living in a boarding school make me independent．I am confidence to take care of myself，wash the clothes，and clean the rooms，which I never did when at home．The classes here are very interesting and challenged．I'm still feeling a little dissatisfied with some other thing．The living conditions are not as good as it at home and the chance to get in touch with the outside world is limited．Anyway，I'll get used to living here and hope everything will be more better soon．

18．In 1693the philosopher John Locke warned that children should not be given too much"unhealthy fruit"to eat．Three centuries later，misguided ideas about child-raising are still popular．Many parents fear that their children will die unless ceaselessly watched．In America the law can be equally paranoid （偏执的）．In South Carolina this month Debra Harrell was jailed for letting her 9-year-old daughter play in a park unsupervised （无人监督的）．
Her severe punishment reflects the rich world's worry about parenting．By most objective measures，modern parents are far more conscientious （认真的） than previous generations．Dads are more hands-on than their fathers were，and working mothers spend more time nurturing their children than the housewives of the 1960s did．However，there are two problems in this picture，connected to class．One is at the lower end．Even if poor parents spend more time with their children than they once did，they spend less than rich parents do．America is a laggard here：its government spends abundantly on school-age kids but much less than other rich countries on the first two or three years of life．If America did more to help poor parents with young children，it would have huge returns．
The second one，occurs at the other end of the income scale，and may even apply to otherwise rational （理性的） Economist readers：well-educated，rich parents try to do too much．Safety is part of it-they fear that if they are not constantly watching their children may break their necks，which is the least rational．Despite the impression you get from watching crime dramas，children in rich countries are safe，so long as they look both ways before crossing the road．The other popular parental fear-that your children might not get into an Ivy League college-is more rational．Academic success matters more than ever before．But beyond a certain point，parenting makes less difference than many parents imagine．Studies in Minnesota and Sweden，for example，found that identical twins grew up equally intelligent whether they were raised together or apart．A study in Colorado found that children that adopted and raised by brainy parents ended up no brainier than those adopted by average parents．
This doesn't mean that parenting is irrelevant．The families who adopt children are carefully screened，so they tend to be warm，capable and middle-class．But the twin and adoption studies indicate that any child given a loving home and adequate stimulation is likely to fulfill her potential．Put another way，better-off parents can afford to relax a bit．And if you are less stressed，your children will appreciate it，even if you still make them eat their fruit and vegetables．
32．Which of the following statements is NOT a misguided idea of parenting mentioned in the passage？D
A．Children should be protected from any dangers by their parents
B．The more conscientious parents are，the more children will surely benefit from parenting
C．Children will die unless ceaselessly watched
D．Children are likely to fulfill their potential with a loving home and adequate stimulation
33．The underlined word"laggard"in Paragraph 2probably means a country thatB．
A．is ahead in development
B．falls slow behind others
C．is free from physical or mental disorder
D．moves to a higher position
34．Which of the following can we learn from the passage？D
A．Only warm，capable and middle-class people can adopt a child．
B．When it comes to child-raising，Economist readers will become more rational．
C．Children in rich countries are in greater danger due to the bad influence of crime dramas．
D．Although poor parents spend more time with their kids than they once did，they spend less than rich parents do．
35．This passage is mainly written toC．
A．urge American laws concerning parenting to be changed
B．advise modern parents to learn from their previous generations
C．persuade stressed parents to learn to relax and give more freedom to their children
D．call on the government to do more to help poor parents with school-age children．

5．听第6段材料，回答第6、7题．
6．What's the possible relationship between the two speakers？
A．Neighbors． B．Couple C．Colleagues．
7．What was the real reason for Monica's being late？
A．Her husband was not at home．
B．She didn't get up on time．
C．She attended her child all night．

13．There would be not a good harvest of wheat in North China this year_____ the big snow．（　　）

14．Have you ever been to Minions？No，not the recent movie-the village in England with the same name．You may now find （41）it harder to find it，as the village has had to take down its sign after worries about（42）safety（safe）．
The village put（43）up a special sign in May as part of a deal with Universal Studios to promote the Minions movie，according to UPI．The sign featured three of the cute yellow characters（44）posing（pose） next to the village's name and holding a sign reading，"Please drive（45）carefully（careful）．"And the Minions sign（46）proved（prove） popular with travelers，as shown by the many pictures on（47）social（society） media of drivers who stopped to take photos with the sign．
Some local business wanted to keep the sign in place（48）to help （help） with tourism，（49）butCarl Hearn，a local official，said officials had to take it down as they were worried about drivers"stopping in front of the sign in order to have photographs（50）taken（take）．"

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