17．There are times when people are so tired that they fall asleep almost anywhere．We can see there is a lot of sleeping on the bus or train on the（41）Bhome from work in the evenings．A man will be （42）Athe newspaper，and seconds later it（43）Das if he is trying to （44）Dit．Or he will fall asleep on the shoulder of the stranger （45）C next to him．（46）A place where unplanned short sleep（47）C is in the lecture hall where a student will start snoring（打鼾）so （48）Bthat the professor has to ask another student to（49）Cthe sleeper awake．A more embarrassing（尷尬）situation occurs when a student starts falling into sleep and the（50）Cof the head pushes the arm off the（51）D，and the movement carries the（52）Aof the body along．The student wakes up on the floor with no （53）D of getting there．The worst time to fall asleep is when （54）B．Police reports are full of（55）C that occur when people fall into sleep and go （56）Athe road．If the drivers are（57）B，they are not seriously hurt．One woman's car，（58）B，went into the river．She woke up in four feet of（59）Aand thought it was raining．When people are really （60）D，nothing will stop them from falling asleep--no matter where they are．

41．A．track	B．way	C．path	D．road
42．A．reading	B．folding	C．delivering	D．buying
43．A．a(chǎn)cts	B．shows	C．sounds	D．a(chǎn)ppears
44．A．open	B．finish	C．find	D．eat
45．A．lying	B．waiting	C sitting	D．talking
46．A．Another	B．Every	C．Next	D．One
47．A．lasts	B．ends up	C．goes on	D．returns
48．A．bravely	B．loudly	C．hppily	D．carelessly
49．A．leave	B．keep	C．shake	D．watch
50．A．size	B．shape	C．weight	D．strength
51．A．cushion	B．book	C．shoulder	D．desk
52．A．rest	B．position	C．a(chǎn)ction	D．side
53．A．purpose	B．reason	C．question	D．memory
54．A．thinking	B．driving	C．walking	D．working
55．A．changes	B．events	C．a(chǎn)ccidents	D．ideas
56．A．off	B．up	C．a(chǎn)long	D．down
57．A．a(chǎn)wake	B．lucky	C．calm	D．strong
58．A．in time	B．for example	C．a(chǎn)s usual	D．a(chǎn)t first
59．A．water	B．dust	C．grass	D．bush
60．A．lazy	B．drunk	C．lonely	D．tired．

16．There have been many great inventions，which have changed the way we live．The first great invention was （21）C that is still very important today-the wheel（輪子）．This made it easier to （22）A heavy things and to travel long distances．
For hundreds of years after that there were few inventions that have as much （23）D as the wheel．Then in the early 1800's the world started to （24）C．There was little unknown land in the world．People did not （25）A to explore（探索） any more．They began to work so as to （26）C life better．
In the second half of the 19th century many great inventions were made．（27）B them were the camera，the electric light and the radio．These all became a big （28）B of our life today．
The first part of the 20th century saw more great （29）D：the helicopter in 1909； movies with sound in 1926； the computer in 1928； and jet planes in 1930．This was also a time （30）A a new material was first made．Nylon （尼龍）came （31）A in 1935．It changed the （32）C of clothes people had been wearing．The middle part of the 20th century brought new ways to help people get over （33）B．They worked very well．They made people healthier and let them live （34）B lives．By the 1960's most people could （35）B to live at least 60．
By this time most people had a very good life．Of course new inventions （36）Dto be made．But man now had a desire to explore again．The world was （37）D to man but the stars were not．Man began looking for ways to go into （38）A．Russia made the first step．Then the United States took a step．Since then other countries，（39）A China and Japan，have made their steps into space．
In 1969man took his biggest step away from the earth．Americans first walked on the moon．This is certainly just a （40）C thought．New inventions will someday allow us to do things we have never dreamed of．

21．A．what	B．that	C．one	D．it
22．A．carry	B．bring	C．find	D．put
23．A．time	B．knowledge	C．situation	D．effect
24．A．a(chǎn)ppear	B．mind	C．change	D．rise
25．A．have	B．want	C．decide	D．like
26．A．work	B．turn	C．make	D．think
27．A．In	B．Among	C．Between	D．About
28．A．sort	B．part	C．step	D．use
29．A．results	B．jobs	C．things	D．inventions
30．A．when	B．which	C．if	D．a(chǎn)s
31．A．out	B．in	C．a(chǎn)way	D．a(chǎn)bout
32．A．rest	B．course	C．kind	D．pattern
33．A．rules	B．diseases	C．difficulties	D．problems
34．A．more important	B．longer	C．happier	D．better
35．A．hope	B．expect	C．start	D．a(chǎn)sk
36．A．go on	B．begin	C．a(chǎn)re able	D．continue
37．A．useful	B．popular	C．common	D．known
38．A．space	B．sky	C．a(chǎn)ir	D．room
39．A．including	B．except	C．but	D．like
40．A．moving	B．interesting	C．beginning	D．surprising

15．The world would be a better place if we all had children's eyes．This is not because children's eyes are too sharp to allow any blot（污點(diǎn)、瑕疵）to pass without being （36）C，but because adults have too many conflicting concerns to keep their eyes open to all wrongdoing．
Not long before，an examination，intended to （37）Dsome police officers to higher positions，was held in Gansu province．Someone （38）Bwith a good idea that 18primary pupils could be invited to act as invigilators （監(jiān)考人）．At that age，students would do as they are told and act fearlessly．（39）A，they caught 25officers cheating on the spot，which has caused a stir （轟動(dòng)，攪動(dòng)） and （40）Cthe question of whether adult invigilators would （41）D their duties as well．
The implication of this event goes （42）B its impact on the work style of local police officers and the examinations．Most people said what these children have done points to the sad fact of （43）C being less trustworthy．If adults acted as invigilators，they would quite （44）A turn a blind eye to cheating．
We Chinese have been holding the （45）C that human nature was good at birth：as （46）A of blot as a sheet of blank paper，which can be（47）B with content （good or bad） in the process of growing up．Everything should be done on the basis of certain principles．（48）C，nowadays the repeated reports of cheating in examinations，selling ranks and （49）B and embezzling （挪用） public funds paint a （50）D picture of common social morals．Adults have become too concerned with their own personal gains to  （51）A basic sense of principles．When no one （52）B any principle and the only concern is personal interest，everyone will （53）C，not only those who first break the rules．
Besides，cheats are unfair to honest examinees，and when the success of cheats（54）Bmore people to cheat，the consequences will be disastrous．
In a word，we adults need to have our eyes as （55）D as children's on matters of principle．

36．A．praised	B．dismissed	C．caught	D．thrown
37．A．develop	B．investigate	C．prevent	D．promote
38．A．caught up	B．came up	C．kept up	D．put up
39．A．Surprisingly	B．Usually	C．Safely	D．Slowly
40．A．rose	B．recommended	C．raised	D．a(chǎn)ffected
41．A．a(chǎn)ccept	B．ignore	C．refuse	D．perform
42．A．without	B．beyond	C．into	D．for
43．A．tutors	B．pupils	C．a(chǎn)dults	D．teachers
44．A．probably	B．suddenly	C．luckily	D．gradually
45．A．opportunity	B．dream	C．belief	D．hope
46．A．free	B．busy	C．ugly	D．dirty
47．A．described	B．filled	C．purchased	D．charged
48．A．Unless	B．Therefore	C．However	D．Thus
49．A．names	B．titles	C．goods	D．products
50．A．bright	B．beautiful	C．pleasant	D．sad
51．A．care about	B．put aside	C．contribute to	D．come across
52．A．understands	B．obeys	C．possesses	D．change
53．A．a(chǎn)ct	B．exist	C．suffer	D．survive
54．A．a(chǎn)dvises	B．encourages	C．warns	D．informs
55．A．beautiful	B．young	C．wide	D．clear．

14．Sometimes，people are required to fill in personal information when they register online，which may lead to some（41）D trouble．Recently，the BBC is reporting that a 17-year-old girl in Australia posted a（n）（42）B  of her grandmother at home counting a large sum of cash that she（43）Ahidden in the house．Just eight hours later，two armed men （44）Dthe girl's house．They demanded to speak to her to find out where the grandmother's house was，（45）Dthey could get the money they had seen．（46）B，the girl was not home at the time，so the robbers（47）C a small amount of cash from the mother and left．
Because the （48）Ais still under（49）D，local police aren't saying much else about it．It's not known yet whether the girl had used privacy setting on the Facebook profile page，and even whether the robbers （50）Cthe girl in the past．
Two other（51）Awere at home then，a 58-year-old man and a 14-year-old boy，the girl's father and brother．Luckily，no one was（52）A．The robbers left peacefully after （53）A  that the girl was not hom e and that no one else there knew anything about the（54）C  that had appeared in the photo．
Police in both Britain and Australia are using the case to （55）Dcitizens of the dangers of posting personal information on social networks and to suggest users of websites（56）Ddoing so．The police say it is（57）B that the girl posted a comment in the past that gave clues to the address，（58）Athat the robbers knew the girl in another way．（59）C，they suggest，a posting by a friend on their site could have （60）Bsuch information．To find it，the robbers would only have had to search for those posting on other pages that contained the girl's name．

41．A．clear	B．known	C．cautious	D．unexpected
42．A．story	B．picture	C．blog	D．video
43．A．kept	B．made	C．let	D．got
44．A．knocked at	B．looked at	C．ran into	D．broke into
45．A．even if	B．in case	C．a(chǎn)s soon as	D．so that
46．A．Usually	B．Fortunately	C．Suddenly	D．Finally
47．A．spent	B．left	C．took	D．a(chǎn)sked
48．A．case	B．family	C．robber	D．girl
49．A．discussion	B．consideration	C．control	D．investigation
50．A．ignored	B．remembered	C．knew	D．followed
51．A．members	B．a(chǎn)dults	C．characters	D．neighbors
52．A．harmed	B．escaped	C．killed	D．buried
53．A．discovering	B．realizing	C．showing	D．recognizing
54．A．house	B．grandmother	C．cash	D．website
55．A．inform	B．a(chǎn)ccuse	C．rob	D．warn
56．A．enjoy	B．consider	C．keep	D．stop
57．A．important	B．possible	C．necessary	D．strange
58．A．or	B．so	C．a(chǎn)nd	D．but
59．A．Therefore	B．However	C．Besides	D．Instead
60．A．taken up	B．given away	C．put away	D．set up．

13．Always ChangingJack is leaving，and I'm feeling kind of sad．
You probably don't know Jack，but you might be lucky enough o（21）Asomeone just like him．He's been the heart and soul of the office for a couple of years combining（22）Aprofessional skills with a sweet and gentle nature．
And now he's moving on to an exciting new professional （23）C．It sounds like it could be the chance of a lifetime，and we're（24）Bfor him．But that doesn't make it any easier to say goodbye to him．
Life has a way of throwing these curve（曲線） balls （25）Bus．Just when we start to get comfortable with a person，a place or a situation，something comes along to（26）Dthe recipe．
Our ability to cope with change（27）D to a great degree，our peace，happiness and contentment in life．
But how do we do that？A friend of mine is fond of reminding us that"survivability depends upon（28）C．"And then there's Chris the California surf-rat，who once told me that the answer to life's problems can be（29）Ain four words："Go with the flow．"
I'm not exactly sure，but I think Chris was saying that life is a series of （30）Aboth good and bad．No matter how excellent your skill，there will always be life-influencing factors over which you have no（31）C．The truly successful person expects the unexpected，and is prepared to（32）Badjustments if the need should arise-as it almost （33）Ddoes．
That doesn't mean you don't keep trying to make all your（34）Acome true．It just means that when things come up that aren't （35）Din your plan，you work around them-and then you move on．
"Change，indeed，is painful，（36）Bever needful，"said philosopher Thomas Carlyle．"And if memory has its force and worth，so also has （37）C．"
We're going to miss Jack．But rather than stay on the（38）Bof our parting，we'll focus on our hopes for a brighter future-for him，and for us．And then we'll go out and （39）Aeverything we can to make that future happen．（40）Cour plans change-again．

21．A．know	B．greet	C．imagine	D．recognize
22．A．good	B．extra	C．correct	D．precise
23．A．a(chǎn)greement	B．destination	C．opportunity	D．experience
24．A．pity	B．pleased	C．a(chǎn)nxious	D．curious
25．A．in	B．a(chǎn)t	C．on	D．with
26．A．try	B．use	C．provide	D．change
27．A．protect	B．produce	C．preser ve	D．determine
28．A．habit	B．belief	C．a(chǎn)daptability	D．communication
29．A．summed up	B．put up	C．made up	D．held up
30．A．events	B．records	C．a(chǎn)ccidents	D．problems
31．A．power	B．trouble	C．control	D．difference
32．A．get	B．make	C．take	D．have
33．A．never	B．a(chǎn)lready	C．seldom	D．a(chǎn)lways
34．A．dreams	B．promises	C．decisions	D．solutions
35．A．eventually	B．immediately	C．surprisingly	D．exactly
36．A．a(chǎn)nd	B．yet	C．a(chǎn)lso	D．even
37．A．future	B．parting	C．hope	D．a(chǎn)ttempt
38．A．complaint	B．sadness	C．a(chǎn)ttention	D．sympathy
39．A．do	B．face	C．seize	D．demand
40．A．If	B．After	C．Until	D．Before．

12．Americans eat a lot of fast food in their daily life．Their staples （41）Bpotatoes，pasta，bread，and rice （42）Cwith a variety of sauces．（43）A
 in large part to fast food，half of America's adults and one-quarter of its children are （44）C，double the （45）Bof twenty years ago．In the past years，eating habits have（46）D  as people pay more attention to their health．（47）A，many Americans continue to eat red meat（beef in particular）（48）C pork，and chicken and other foods．Visitors to the U．S are often amazed at the （49）Bof the steaks and other portions of food served in restaurants．Fresh fish and seafood are （50）Davailable on the coasts and near major rivers and lakes，and fresh farm （51）C are available to all parts of the country all the year round．Americans also consume a large（52）Bof chocolate，ice cream，and other forms of dessert．（53）C beer and red wine are popular in most areas，many Americans abstain（戒除） from alcohol．Various kinds of mineral water are rather popular．（54）A
 styles and habits vary between people of different backgrounds，but Americans generally eat with the （55）Ain the hand with which they write．A knife is used（56）A  cutting and spreading； otherwise，it is （57）Don the plate or table．Fast foods，such as chips，fried chicken，hamburgers，and pizza，（58）Bbe eaten with the fingers．
There is an obvious difference between people in what they may do at home or in a fast-food restaurant，and（59）D they act in a restaurant．Because both parents often work outside the home，some Americans are（60）D  likely to sit down as a family to eat once the children are older and able to prepare their own food or serve themselves．

41．A．conclude	B．include	C．contain	D．hold
42．A．boiled	B．shaped	C．prepared	D．baked
43．A．Thanks	B．Forms	C．Figures	D．Numbers
44．A．strong	B．tall	C．fat	D．thin
45．A．length	B．rate	C．food	D．height
46．A．followed	B．kept	C．practiced	D．changed
47．A．However	B．Besides	C．Otherwise	D．While
48．A．rather than	B．except for	C．a(chǎn)s well as	D．other than
49．A．colour	B．size	C．taste	D．price
50．A．likely	B．specially	C．possibly	D．widely
51．A．work	B．skills	C．products	D．transports
52．A．part	B．a(chǎn)mount	C．a(chǎn)rea	D．number
53．A．If	B．When	C．Although	D．For
54．A．Eating	B．Cooking	C．Serving	D．Living
55．A．fork	B．fingers	C．food	D．plate
56．A．for	B．a(chǎn)s	C．with	D．in
57．A．lied	B．lay	C．lain	D．laid
58．A．turn to	B．tend to	C．lead to	D．belong to
59．A．whatever	B．which	C．that	D．how
60．A．much	B．more	C．well	D．less．

11．As a general rule，all forms of activity lead to boredom when they are performed on a routine （常規(guī)） basis．As a matter of fact，we can see this （36）A at work in people of all （37）D．
For example，on Christmas morning，children are excited about （38）C with their new toys．But their （39）B soon wears off and by January those （40）A toys can be found put away in the basement．The world is full of （41）D stamp albums and unfinished models，each standing as a monument to someone's （42 ）B interest．When parents bring home a pet，their children （43）C bathes it and brushes its fur．Within a short time，however，the （44）B of caring for the animal is handed over to the parents．
Adolescents enter high school with great （45 ）D but are soon looking forward to （46）A．The same is true of the young adults going to college．And then，how many （47）C，who now complain about the long drives to work，（48 ）B drove for hours at a time when they first （49）B their driver's license？
Before people retire，they usually （50）D to do a lot of （51 ）A things，which they never had （52）A to do while working．But （53）D after retirement，the golfing，the fishing，the reading and all of the other pastimes become as boring as the jobs they （54）C．And，like the child in January，they go searching for their new"（55 ）B"．

36．A．principle	B．habit	C．way	D．power
37．A．parties	B．races	C．countries	D．a(chǎn)ges
38．A．working	B．living	C．playing	D．going
39．A．confidence	B．interest	C．a(chǎn)nxiety	D．sorrow
40．A．same	B．extra	C．funny	D．expensive
41．A．well-organized	B．colorfully-printed	C．newly-collected	D．half-filled
42．A．broad	B．passing	C．different	D．main
43．A．silently	B．impatiently	C．gladly	D．worriedly
44．A．promise	B．burden	C．right	D．game
45．A．courage	B．calmness	C．confusion	D．excitement
46．A．graduation	B．independence	C．responsibility	D．success
47．A．children	B．students	C．a(chǎn)dults	D．retirees
48．A．carefully	B．eagerly	C．nervously	D．bravely
49．A．required	B．obtained	C．noticed	D．discovered
50．A．need	B．learn	C．start	D．plan
51．A．great	B．strange	C．difficult	D．correct
52．A．time	B．money	C．skills	D．knowledge
53．A．only	B．well	C．even	D．soon
54．A．lost	B．chose	C．left	D．quit
55．A．pets	B．toys	C．friends	D．colleagues．

10．Do you know how many languages there are in the world？There are about 1，500，but （41）Aof them are not very （42）C．English is one of the most important languages because many people （43）Bit not only in England and America，（44）Ain other countries of the world．About 200，000，000speak it （45）Dtheir own language，and another 200，000，000use it as （46）B language．It is （47）Cto say how many people are learning it．（48）Aboys and girls in schools are trying to do so．Many English children study French．French is also a very important language．（49）Achildren study German，Russian，Japanese and Chinese．Which is the best （50）B to learn a language？We know that we all learn （51）Dlanguage well when we were（52）B．If we learn a second language in the （53）Away，it won't seem so difficult．What does a small child do？It（54）Dwhat people say，and it tries to guess what it hears．When it wants something，it has to（55）D it．It is using the language，（56）Cin it and talking in it all the time．If the people use a second language （57）C，they will learn it （58）D．In school，you learn to read，to write，to hear and to speak．It is best to learn all new words through the （59）C．You can read them，spell them and （60）Athem later．

41．A．many	B．some	C．few	D．a(chǎn) few
42．A．useful	B．necessary	C．important	D．good
43．A．like	B．use	C．learn	D．speak
44．A．but	B．a(chǎn)nd	C．a(chǎn)lso	D．so
45．A．like	B．with	C．for	D．a(chǎn)s
46．A．foreign	B．a(chǎn) second	C．the second	D．a(chǎn) special
47．A．easy	B．a(chǎn)gain	C．difficult	D．best
48．A．Millions of	B．Million of	C．Millions	D．Several million
49．A．Some	B．Other	C．All	D．Few
50．A．time	B．way	C．thing	D．place
51．A．a(chǎn) foreign	B．our mothers'	C．others	D．our own
52．A．born	B．children	C．grown	D．boys
53．A．same	B．difficult	C．useful	D．good
54．A．does	B．says	C．listens to	D．follows
55．A．a(chǎn)sk	B．want	C．get	D．a(chǎn)sk for
56．A．speaking	B．writing	C．thinking	D．doing
57．A．some time	B．sometimes	C．a(chǎn)ll the time	D．for the time
58．A．quickly	B．soon	C．freely	D．easily
59．A．mouth	B．hands	C．ears	D．mind
60．A．speak	B．use	C．love	D．write．

9．With their visas（簽證）in hand and their bags packed，students may feel prepared for their study abroad experiences．（36）C once they set foot in foreign lands，some students realize that they don't have the skills to communicate their thoughts and feelings in their （37）B culture．
Guo Yichen，a student at the Fashion Institute of Design and Merchandising in Los Angeles，observed a（an） （38）D of poor communication during her time abroad．
When Guo first got to the US，she stayed in the house of a 63-year-old lady，with another Chinese girl．Guo and her housemate were（39）D to take turns tidying up the bathroom．But the housemate never （40）B，because she didn't know how．Her mother had always cleaned the bathroom for her back home．And when the landlord asked about it，the housemate （41）D replied，"I never needed to do housework back home，and I won't do it here （42）A．"
"I was shocked by how （43）C her answer was，"said Guo．"She could have explained it in a better way．"It was （44）B surprise that the girl was asked to move out almost immediately．
In fact，"difficulty in（45）A"is among the three major psychological problems that ZMN Education，an agency on overseas education，（46）C among Chinese students studying abroad，the other two being"fear of class discussion"and"fear of homework based on critical thinking"．
A professor at the University of California，Berkeley，once told the agency that many of his Chinese students only came to see him when they got （47）B scores．They should have talked to him after each class to get a better grade （48）A，he said．
According to the agency，studying abroad itself may trigger（引發(fā)） certain mental problems because it is a"（49）C and stressful shift to new environments and （50）B"．It has been found that students are 23times more likely to（51）C a mental health condition than business travelers headed abroad．
And during this period of major life transitions（過(guò)渡），（52）D better communication skills is particularly vital．It helps you get assistance and solve problems．
Students need to understand the value of empathy-the effective awareness of the emotions of others-as well as（53）A themselves clearly，especially in cross-cultural communications．It would be better if students participate in a（an）（54）C abroad program during vacations before trying year-long overseas study．That way，they could have （55）B coping with a strange world independently．

36．A．And	B．Therefore	C．But	D．Otherwise
37．A．unique	B．host	C．national	D．superb
38．A．conflict	B．trial	C．debate	D．case
39．A．a(chǎn)ppreciated	B．represented	C．fueled	D．supposed
40．A．bought her story	B．did her part	C．kept her word	D．followed her heart
41．A．a(chǎn)ctually	B．eventually	C．pleasantly	D．simply
42．A．either	B．rather	C．too	D．neither
43．A．sensitive	B．serious	C．straightforward	D．stubborn
44．A．great	B．no	C．major	D．exact
45．A．communication	B．explanation	C．opposition	D．indication
46．A．impressed	B．ignored	C．identified	D．inspired
47．A．unfortunate	B．unsatisfactory	C．unwelcome	D．unequal
48．A．in the first place	B．in other words	C．in this case	D．in the end
49．A．similar	B．superb	C．sudden	D．sensitive
50．A．influences	B．routines	C．manners	D．policies
51．A．result from	B．benefit from	C．suffer from	D．flee from
52．A．tolerating	B．simplifying	C．requesting	D．developing
53．A．expressing	B．blaming	C．committing	D．a(chǎn)dvancing
54．A．a(chǎn)ffordable	B．long-distance	C．short-term	D．trustworthy
55．A．difficulty	B．experience	C．leadership	D．survival．

8．A group of graduates got together to visit their old university professor．
The conversation soon turned into complaints about （41）A in work and life．To offer his （42）D coffee，the professor went to the kitchen and （43）Bwith a large pot of coffee and a （44）B of cups-porcelain，plastic，glass，crystal，some plain-looking，some expensive，some beautiful-telling them to （45）C themselves to the coffee．
When all the students had a cup of coffee in hand，the professor said，"if you have （46）C，all the nice-looking expensive cups have been taken up，（47）Athe plain and cheap ones．While it is （48）Bfor you to want only the best for yourselves，that is the （49）C of your problems and stress．"
"Be assured that the cup itself （50）D no quality to the coffee．（51）D it is just more expensive and in some cases （52）B hides what we drink．"
"（53）A all of you really want is the coffee，not the cup，（54）Ayou consciously went for the best cups…And then you began （55）D each other's cups．"
Now consider this：（56）B is the coffee； the jobs，money and position in society are the cups．They are just tools to hold and （57）Alife，and the type of cup we have does not define，nor change the （58）Cof life we live．Sometimes，by concentrating only on the cup，we （59）D to enjoy the coffee．Value the coffee，not the cups!Don't let the cups （60）B you…enjoy the coffee instead．

41．A．stress	B．dream	C．sorrow	D．truth
42．A．friends	B．customers	C．fellows	D．guests
43．A．carried	B．returned	C．a(chǎn)rrived	D．reached
44．A．kind	B．variety	C．sort	D．number
45．A．devote	B．expose	C．help	D．a(chǎn)bsorb
46．A．searched	B．witnessed	C．noticed	D．discovered
47．A．leaving behind	B．leaving over	C．falling about	D．falling behind
48．A．strange	B．normal	C．wonderful	D．important
49．A．purpose	B．a(chǎn)nswer	C．source	D．result
50．A．takes	B．links	C．passes	D．a(chǎn)dds
51．A．At no time	B．At all times	C．In no case	D．In most cases
52．A．ever	B．even	C．never	D．hardly
53．A．What	B．That	C．Which	D．Whether
54．A．but	B．so	C．a(chǎn)nd	D．for
55．A．suspecting	B．liking	C．praising	D．eyeing
56．A．Love	B．Life	C．Future	D．Failure
57．A．contain	B．create	C．support	D．own
58．A．quantity	B．style	C．quality	D．standard
59．A．have	B．manage	C．plan	D．fail
60．A．envy	B．drive	C．force	D．a(chǎn)ssess