He looks sleepy．He musthave stayed uplast night.writing the essay．题目和参考答案——青夏教育精英家教网—

题目内容

5．He looks sleepy．He musthave stayed up（熬夜了）last night，writing the essay．（stay）

分析他看起来要睡觉．他昨晚一定熬夜写论文了．

解答答案：have stayed up
熬夜：stay up；句意表达的是对过去事实的肯定推测，要用情态动词加完成时态来构成．

点评翻译填空题考查的是词汇的记忆和运用能力，平时要注意积累和运用．同时还要注意区分近义短语．

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15．By 2050，a completely new type of human evolve as a result of extremely new technology，behavior，and natural selection．This is according to Cadell Last，a researcher at the Global Brain Institute，who claims mankind is undergoing a major"evolutionary transition"．
In less than four decades，Mr．Last claims we will live longer，have children in old age and rely on artificial intelligence to do ordinary and boring tasks．This shift is so significant，he claims，it is comparable to the change from monkeys to apes，and apes to humans．"Your 80or 100is going to be so radically different than your grandparents，"Mr．Last says，who believes we will spend much of our time living in virtual reality．Some evolutionary scientists believe this age could be as high as 120by 2050．
Mr．Last claims humans will also demonstrate delayed sexual maturation，according to a report by Christina Sterbenz in Business Insider．This refers to something known as life history theory which attempts to explain how natural selection shapes key events in a creature's life，such as reproduction．It suggests that as brain sizes increase，organisms need more energy and time to reach their full potential，and so reproduce less．
Instead of living fast and dying younger，Mr．Last believes humans will live slow and die old．"Global society at the moment is a complete mess，"he told MailOnline．"But in crisis there is opportunity，and in apocalypse （启示） there can be transformation．So I think the next system humanity creates will be far more sophisticated，fair，and abundant than our current civilization．"
"I think our next system will be as different from the modern world，as our contemporary world is from the medieval （中世纪的） world．The biological clock isn't going to be around forever，"he added，and said that people could pause it for some time using future technology．
The change is already happening．Today，the average age at which a woman in Britain has her first baby has been rising steadily stands at 29.8．In the US，just one percent of first children were born to women over the age of 35in 1970．By 2012，that figure rose to 15percent．
"As countries become socio-economically advanced，more and more people，especially women have the option to engage in cultural reproduction，"Mr．Last added．And as well as having more child-free years to enjoy leisure time，he believes artificial intelligence will make up the need for low-skill jobs．We may also spend a large amount of time living in virtual reality．"I'm not quite sure most people have really absorbed the implications of this possibility，"Mr．Last said．
His views are detailed in a paper，titled"Human Evolution，Life History Theory，and the End of Biological Reproduction"published Current Aging Science．

59．According to Cadell Last，a completely new type of human will appear because ofA．
①artificial intelligence ②new technology ③natural selection ④mundane tasks
⑤behavior
A．②③⑤
B．①②③
C．③④⑤
D．①②⑤
60．Which statement is compared by Mr．Last to the change from monkeys to apes，and apes to humans？D
A．We have diseases and die young．
B．We give birth to a child when we are young．
C．We spend less time in virtual reality．
D．We use intelligent robots to do everyday housework．
61．The underlined words in the third paragraph most probably mean"A"．
A．Organisms need more energy and time to ripen．
B．Natural selection shapes key events．
C．Reproduction．
D．Reproduce less．
62．In the next system Mr．Last explained we can infer thatA．
A．women are engaged in careers or hobbies instead of giving birth to babies
B．women are engaged in playing computer games rather than working
C．women are engaged in cultural reproduction in place of men
D．women are engaged in living in virtual reality without options．

16．If it _____ for the rain，we _____the mountain yesterday．（　　）

	A．	were not，would have lived		B．	were not，could climb
	C．	hadn'tbeen，could have climbed		D．	hadn'tseen，could climb

13．The experiment shows that these pills have nobeneficial（有益的） effect on weight loss．

20．His younger sister teaches in a secondary school，in front ofwhich flows a small river（流淌着一条小河）．（flow）

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"Mobiles give us safety，security and instant access to information．They are the number one tool of communication for us，"Jenny Chang，Synovate's managing director in Taiwan，said in a statement．
Mobiles have also changed the nature of relationships，with the survey finding nearly half of all respondents use text messages to communicate．Apart from the obvious calling and texting，the top three features people use regularly on their mobile phones globally are the alarm clock，the camera and the games．As for email and Internet access，17 percent of respondents said they checked their inboxes or surfed the Web off their phones，led by those in the United States and Britain．
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49．Which of the following is the closest in meaning to the underlined wordubiquitous in the first paragraph？A
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A．many other businesses are attempting to set foot in the mobile phone field
B．the cellphones are becoming smaller and smaller
C．mobile manufacturers and networks will surely make more profit
D．only mobiles drive networks to develop quickly
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A．calling，alarm clock，the games，camera and texting
B．e-mailing，Internet access，calling，the games and texting
C．calling，surfing the Internet，alarm clock and e-mailing
D．calling，texting and e-mailing
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A．introduce the various functions of mobiles
B．prove that the mobile is gradually becoming an all-in-one device
C．tell readers that mobiles are the most popular with Russians and Singaporeans
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17．_____ in thought，he almost ran into the car in front of him．（　　）

14．________ many times，he finally understood it．（　　）

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