The reason he missed school this morning was he had to look after his sick mother( )A．why, becauseB．why, thatC．which, becauseD．which, that 题目和参考答案——青夏教育精英家教网—

题目内容

2．The reason ______ he missed school this morning was _______ he had to look after his sick mother（　　）

A．

why； because

B．

why； that

C．

which； because

D．

which； that

分析早上他没来上学的原因是要照顾生病的妈妈．

解答答案：B
分析句式可知，______ he missed school this morning 是定语从句，修饰先行词the reason，在从句中缺少状语，所以用why引导；第二空放在was后是表语从句，在该从句中不缺成分，所以用that引导，没有意思但是不能去掉．

点评考生需掌握定语从句一些固定句型如，The reason why…is that…的理由是因为…

练习册系列答案

13．A famous Renoir had been stolen from a museum．Detective Earl Blackman was to work on the case．
Everyone was in the dark before an art professor came to point out the false picture．So the museum even didn't know when the picture had been stolen．Thousands of people came to visit the museum every day．After long work，some art students were focused on．
The five students who had made copies of the Renoir during the last six months were asked to bring their copies to the museum．The fifth student said she had sold her copy，which was later proved to be the one in the museum．She，however，could only remember the buyer was a man with the little finger on his left hand missing．
Blackman went back and stayed in his office looking at all the pictures of known thieves．No success．
The next afternoon，at about closing time，Blackman went to the museum to ask if the cleaning men were in the museum after everyone else had left．The director told him they had no cleaning man but six cleaning women．
As the detective left the director's office，he saw five cleaning women．He stopped one and asked about her work．Then came the sixth cleaning woman．She was dressed just like the other women except the gloves on her hands which made her different．Blackman watched her for some time．When she came near，Blackman caught her．The woman cried out in a man's voice，"What was that？"Blackman was more sure．
56．Everything came to lightD．
A．when an art student was askedB．when the cleaning man came into the office
C．when Blackman looked at all the picturesD．when the cleaning woman cried
57．Arrange the following sentences in the right order．C
a．The museum asked for help．
b．The four students showed their copies．
c．An art professor came．
d．The detective looked at all the pictures．
e．The thief bought a picture．
A．a-c-e-d-bB．c-a-d-s-bC．e-c-a-b-d D．e-a-b-d-c
58．Blackman caught the cleaning woman because ofA．
A．the gloveB．the clothesC．her sexD．her work．

10．Cities need to put efforts to deal with pollution and clear the air．
Chinese cities will need to put efforts to clear up the sky when a new department to improve regional air quality is set up by 2015，according to the latest plan released by the State Council．
Besides the existing pollution control program for CO2，regional emission caps（区域排放上限） for other certain chemicals will be established in the three key air polluting areas-the Yangtze River Delta，Pearl River Delta and the Beijing-Tianjin-Hebei region．Coal-consumption caps will also be tried out in some areas，according to the plan．
The plan is aimed at dealing with regional air pollution-such as acid rain and smog-which have become increasingly obvious in China in recent years and caused a severe threat to people's health，Zhang Lijun，vice minister of environmental protection，said in an interview on Monday．
The air quality in a city affects the areas nearby because pollutants can travel in the sky，said Chai Fahe，vice director of Chinese Research Academy of Environmental Sciences．
"So efforts to reduce air pollution in a single city，targeting a certain pollutant（污染物） will not be enough，"Chai said．
Zhang said the country's major industrial districts-the Yangtze River Delta，Pearl River Delta and the Beijing-Tianjin-Hebei region-have recorded more than 100misty days annually in recent years．
These three regions，home to at least 200million people，occupy only 6.3percent of the country's area but consume 40percent of the country's coal and produce half of its steel，according to official figures．
Studies also show that the visibility（能见度） in eastern regions of China has dropped by 7to 15km compared to that in the early 1960s，as a result of air pollution．
Liaoning province，the Shandong Peninsula，Wuhan in Hubei province and its surrounding area，the Changsha-Zhuzhou-Xiangtan region in Hunan province，the Chengdu-Chongqing region，and the western coast of the Taiwan Straits are also listed as areas to carry out such regional air pollution control programs，according to the plan．
The new plan also requires an improved air quality system，which will measure the pollution levels．"The current system，which only measures some major pollutants，cannot reflect thetruepicture．"said Chai．
57．It will not be enough to reduce air pollution in a single city becauseC．
A．air pollution has been becoming more and more serious in recent years
B．air pollution like acid rain and smog is threatening people's health
C．air pollutants in a city can travel in the sky and affect nearby areas
D．air pollutants stay in fixed places over the cities
58．Suppose the visibility in eastern regions of China was 130km in the early 1960s，the visibility there nowadays isA．
A.123to 115km B.137to 145km
C.123to 145km D.115to 137km
59．The main purpose of the passage isB．
A．to inform readers of the damage caused by air pollution
B．to introduce the new plan to control air pollution
C．to provide official figures of air pollution levels
D．to point out the regions affected by air pollution
60．What does the underlined phrase"the true picture"in the last paragraph mean？D
A．The major pollutants．
B．The key polluted areas．
C．The major polluted cities．
D．The pollution levels．

17．He and Tom ________ over the decision last month and haven't spoken to each other ever since．（　　）

7．Many students are busy making preparations for the coming school sports meeting．

14．My brother ______ is twenty years old is a college student．（　　）

11．Baekeland and Hartmann report that the"short sleepers"had been more or less average in  their sleep needs until the men were in their teens．But at about age 15 0r so，the men voluntarily  began cutting down their nightly sleep time because of pressures from school，work，and other  activities．These men tended to regard their nightly periods of unconsciousness as bothersome interruptions in their daily routines．
In general，these"short sleepers"appeared ambitious，active，energetic and cheerful．They  stuck to their opinions，and were very sure about their job choices..They often held several jobs at  once，or worked full-or part-time while going to school．And many of them had a strong urge to appear"normal"or"acceptable"to their friends and colleagues．
When asked to remember their dreams，the"short sleepers"did poorly．More than this，they seemed to prefer not remembering．Similarly，their usual way of dealing with psychological problems was not to admit that the problem existed，and then to keep busy in the hope that the trouble would go away．
The sleep patterns of the"short sleepers"were similar to，but less extreme than，sleep patterns shown by many mental patients categorized as manic  （躁狂者）．
The"long sleepers"were quite different indeed．Baekeland and Hanmann report that these young men have been lengthy sleepers since childhood．They seemed to enjoy their sleep，protected it，and were quite concemed when sometimes they didn't have their desired 9hours of nightly bed rest．They tended to remember their dreams much better than the"short sleepers"．Many of the"long sleepers"were shy，anxious，quiet，nervous，passive，mildly depressed，and unsure of themselves （ particularly in social situations）．Several openly stated that sleep was an escape from their daily problems．

63．From the passage，we can leam thatC．
A．"short sleepers"need less sleep by nature
B．"long sleepers"sleep a longer period of time during the day
C．many"long sleepers"preserve their sleeping habit formed during their childhood
D．many"short sleepers"have to reduce their nightly sleep time because of busy work
64．Many"short sleepers"are likely to hold the view thatB．
A．sleep is a good way to escape from the reality
B．sleep is not so important as their daily activities
C．sleep affects their judgment on some important things
D．sleep is the best way to deal with psychological troubles
65．It can be learned from the passage that the"short sleepers"D．
A．do not know how to relax properly
B．are more unlikely to run into mental problems
C．are full of energy even under the pressures of life
D．often pay little attention to the consequences of inadequate sleep
66．When sometimes they cannot enjoy adequate sleep，the"long sleepers"mightA．
A．appear disturbed
B．become energetic
C．feel dissatisfied
D．be extremely unhappy．

12．Well，parents，surprise!Lots of us are using Twitter and Facebook to thumb rides，and not just to school．It's awkward to be refused when you call a friend and ask for a ride．But with Twitter，you just look for other people heading the same way．
It may sound risky，so many teens stay within their own social circles to find rides，and don't branch out beyond friends when asking on Twitter just like me，but to some young people，especially those taking longer trips，stranger danger is less of a concern．
"I think the digital connection of young people is really key，because younger generations grew up sharing things on line，sharing files，photos，music，etc，so they've been very used to sharing，"said Juliet Schor，a sociology professor at Boston College．
The sharing economy gotbig during the recession （经济衰退），allowing people to access more goods，services using technology and even to share costs．And that technology，for me，is what the car was for my mom，a gateway to more freedom，like what my friend Earl says，"The symbol of freedom isn't the car any more because there's technology out there connecting you to a car．"
According to the researchers at the University of Michigan，30years ago，eight in ten American 18-year-olds had a driver's license compared to six in ten today．So it's not that surprising that on my 16th birthday I wasn't rushing to get a license but an iPhone．
"Driving，for young people，does mean they have to disconnect from their technology，and that's a negative．So if they could sit in the passage side and still be connected，that's going to be a plus．"Schor continued．
To me，another plus is that ridesharing represents something，something much bigger than trying to save money．I see it as evidence that people still depend on each other．My generation shares their cars and apartments the way neighbors used to share cups of sugar．For the system to work，some of us still need our own cars．But until I get my own version of the silver Super Beetle，you can find me on Twitter．

13．The American teens like the author，prefer to possess an iPhone as a birthday gift becauseD．
A．it is most fashionable and cool
B．they are bored with driving cars
C．it is much heaper than a car
D．they are fond of being connected
14．We can learn from the text thatB．
A．Twitter is a website for teens to make friends and achieve goals
B．ridesharing can be seen as a sign that people still count on each other
C．driving cars for teens means a plus and connecting with technology
D．having a car and cost-sharing symbolize more freedom for the author's mother
15．The best title for the passage is probablyD．
A．Twitter，an Awesome Website
B．Cars or iPhone
C．Cool Teens on the Go
D．Teens Use Twitter to Thumb Rides．

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