The rescuers were forced to the search for survivors due to the worsening weather．( )A．cut offB．call offC．give offD．turn off 题目和参考答案——青夏教育精英家教网—

题目内容

19．The rescuers were forced to the search for survivors due to the worsening weather．（　　）

A．

cut off

B．

call off

C．

give off

D．

turn off

分析由于天气越来越糟糕，救援人员被迫取消了对幸存者的搜救．

解答答案：B
该题考查动词短语意义辨析，cut off意为"切除、切断"，call off意为"取消"，give off意为"发出、放出"，turn off意为"关掉、解雇"，根据题干含义可知，由于天气原因，救援人员是"取消"了搜救，故选B．

点评考查动词及动词搭配辨义时，要准确掌握每个动词或搭配含义，并根据题干含义或逻辑关系选择正确答案．

练习册系列答案

14．She's in a hopeless situation，___________ we will keep a very close eye on．（　　）

7．FIVE Americans swept the three Nobel Prizes in Physics，Chemistry，Physiology （生理学） or Medicine last week．It was the first American sweep of the Nobel science prizes since 1983．
It's rare for Americans not to receive any of the science prizes，especially in recent years．In 2004，seven Americans were among the 10laureates （获奖者） for the science prizes．Last year，the figure was five out of 10．
The huge sums of money invested in scientific research is one factor that has helped many Americans to win awards．Another reason is the vast number of researchers working in the US．American universities also often have a more"creative university environment"where people can focus on research for a long period without any pressure，said Anders Liljas，member of the Nobel Committee．

New hope for AIDS patients？
AMERICAN scientists Craig Mello （top） of the University of Massachusetts Medical School and Andrew Fire （above） of Stanford University School of Medicine won the Nobel Prize for Physiology or Medicine last Monday．Their discovery is a process that researchers hope to use to silence disease-causing genes （基因）．It offers new ways for disease treatment．
Scientists now hope to develop a new technique that could be used to treat diseases，such as cancers，AIDS and Parkinson's disease．

Like father，like son？
AS the son of a Nobel Prize winning professor，Roger D．Kornberg （left） had a lot to live up to．But，nearly half a century after his father，won his award，Kornberg，59，a Stanford University professor，won his own last Wednesday：The Nobel Prize in Chemistry．His research into how cells read their genes is very important．It could help lead to the development of new drugs to fight cancer （癌症），heart disease and other illnesses，experts said．
First light of the universe
TWO Americans won the Nobel Prize in Physics last Tuesday for measuring the oldest light in the heavens．It is considered as"one of the greatest discoveries of the century"．It convinced （使确信） scientists that the Big Bang theory （大爆炸理论） of the universe's origin is correct．George F．Smoot （top），61，of Lawrence Berkeley National Laboratory in Berkeley，and John C．Mather （above），60，of NASA's Goddard Space Flight Centre，will share the US1.4millionprizefortheirwork．Beginningin1989，theymeasuredweaklightthatoriginated（源于）asearlyas380，000 years after the Big Bang．

48．What does the underlined word"swept"in Paragraph 1 meanD？
A．cleaned by brushing B．crossed completely C．spread quickly D．took each of the winning
49．Which of the following is TRUE according to the passageB？
A．Craig Melloand Andrew Fire have found the way to cure cancers，AIDSandParkinson's disease．
B．RogerD．Kornberg's father once won a NobelPrize．
C．GeorgeF．Smootwill get US 1.4million prize for his work．
D．Roger D．Kornberg is the youngest of the Nobel Prize owners of this time．
50．The passage is probably taken fromB．
A．a science report B．a news report
C．a history lecture D．an advertisement．

14．Exercise seems to be good for the human brain，with many recent studies suggesting that regular exercise improves memory and thinking skills．But an interesting new study asks whether the apparent cognitive benefits from exercise are real or just a placebo effect-that is，if we think we will be"smarter"after exercise，do our brains respond accordingly？The answer has significant implications for any of us hoping to use exercise to keep our minds sharp throughout our lives．
While many studies suggest that exercise may have cognitive benefits，recently some scientists have begun to question whether the apparently beneficial effects of exercise on thinking might be a placebo effect．So researchers at Florida State University in Tallahassee and the University of Illinois at Urbana-Champaign decided to focus on expectations，on what people anticipate that exercise will do for thinking．If people's expectations jibe （吻合） closely with the actual benefits，then at least some of those improvements are probably a result of the placebo effect and not of exercise．
For the new study，which was published last month in PLOS One，the researchers recruited 171people through an online survey system，they asked half of these volunteers to estimate by how much a stretching and toning regimens （拉伸运动） performed three times a week might improve various measures of thinking．The other volunteers were asked the same questions，but about a regular walking program．
In actual experiments，stretching and toning program generally have little if any impact on people's cognitive skills．Walking，on the other hand，seems to substantially improve thinking ability．
But the survey respondents believed the opposite，estimating that the stretching and toning program would be more beneficial for the mind than walking．The estimates of benefits from walking were lower．
These data，while they do not involve any actual exercise，are good news for people who do exercise．"The results from our study suggest that the benefits of aerobic exercise are not a placebo effect，"said Cary Stothart，a graduate student in cognitive psychology at Florida State University，who led the study．
If expectations had been driving the improvements in cognition seen in studies after exercise，Mr．Stothart said，then people should have expected walking to be more beneficial for thinking than stretching．They didn't，implying that the changes in the brain and thinking after exercise are physiologically genuine．
The findings are strong enough to suggest that exercise really does change the brain and may，in the process，improve thinking，Mr．Stothart said．That conclusion should encourage scientists to look even more closely into how，at a molecular level，exercise remodels the human brain，he said．It also should encourage the rest of us to move，since the benefits are，it seems，not imaginary，even if they are in our head．

62．Which of the following about the placebo effect is TRUE according to the passage？C
A．It occurs during exercise．
B．It has cognitive benefits．
C．It is just a mental reaction．
D．It is a physiological response．
63．Why did the researchers at the two universities conduct the research？C
A．To discover the placebo effect in the exercise．
B．To prove the previous studies have a big drawback．
C．To test whether exercise can really improve cognition．
D．To encourage more scientists to get involved in the research．
64．What can we know about the research Cary Stothart and his team carried out？B
A．They employed 171people to take part in the actual exercise．
B．The result of the research removed the recent doubt of some scientists．
C．The participants thought walking had a greater impact on thinking ability．
D．Their conclusion drives scientists to do research on the placebo effect．
65．What might be the best title for the passage？D
A．Is it necessary for us to take exercise？
B．How should people exercise properly？
C．What makes us smarter during exercise？
D．Does exercise really make us smarter？

4．It proves that being creative may be more important than experience ______ it comes to starting your own business．（　　）

11．-Alice，what s your opinion about my suggestion？
-Sorry，I___．Would you please say it again？（　　）

	A．	hadn't listened		B．	wouldn't listen
	C．	wasn't listening		D．	didn't listen

8．When a patient calls for help at Seton Medical Center，"Hi，Mr．Rogers，can I help you？"says a nurse； it's never a problem finding the nurse．It's because they all wear locator tags that are part of a wireless system that tracks their movements on the floor．"You can even tell when they are walking down the hallway．"says James Hattori．
This system made by Hill-Rom uses infrared（红外线的）signals to detect when nurses enter a room to answer a call．The Hill-Rom devices look like a mini computer mouse．Some hospitals are putting them in nurses'kitchens．Staff can talk and listen through a wall unit to nurses or even to patients in other rooms．"We can put the time we were spending hunting staff down，trying to find and locate them to much better use，"says a staff member from Seton．Hill-Rom says it has systems installed in more than 850 U．S．hospitals．
Some nurses worry that the devices will be used to listen in on conversations and scrutinize their movements．"I'm not wearing mine．I will still meet my patient's needs but I will not wear this badge．"Annette Bearden is among dozens of nurses at Eden Medical Center who staged an active protest two months ago and hid their badges though they were later recovered．"You know it makes me not feel like a professional．It makes me feel like that someone has to watch me to make sure I am doing my job．"
"The biggest reason we installed this technology is because our old call system is about 25 years old，"says a hospital manager．For hospitals this is a case of technology allowing，perhaps forcing people to better make use of their time．Officials at Eden don't deny they monitor how long it takes nurses to respond to calls but say their main concern is patient care．"I think it is one tool that we can use in measuring overall performance but by itself it is not a valid disciplinary tool，"says an Eden spokesperson．
Eden is expanding its system with hopes the nurse will eventually accept the new technology，but back at Seton where it's been in place for about two years，there is no uneasiness．"Once the staff actually find out how advantageous it can be for them and the patients，well，actually it became very popular．"
In Castro Valley，California，the Eden Medical Center spent almost three hundred thousand dollars to install the Hill-Rom systems on two floors．Eden hopes to get more of the systems for other floors．

73．Why is it easy to find a nurse at Seton Medical Center？B
A．The nurses are on television．
B．The nurses wear locator badges．
C．Every patient has his/her own nurse．
D．Each room has a telephone．
74．How can the staff talk to their patients when they are not in the same room？C
A．With hand signals．     B．Through microphones in the pocket．
C．Through a wall unit．   D．With infrared signals on the doors．
75．According to the passage，the underlined word"scrutinize"（paragraph 3）probably meansA．
A．watch closely        B．see inside
C．scan word by word    D．make right
76．How did the nurses at Eden Medical Center react to the badges？D
A．The nurses really liked the badges．
B．They threw the locator badges away．
C．They refused to work．
D．They protested and concealed the badges．
77．According to the administrators of the hospital，Eden Medical Center，the application of the Hill-Rom devices mainly aims atD．
A．introducing modern technology
B．adding a tool for discipline
C．replacing the old call system
D．improving the service for patients．

5．-Would you like to join us in the barbecue this afternoon？
-Sorry，．（　　）

	A．	I'd love to		B．	I'm tied up
	C．	it all depends		D．	I'm not interested

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