1、1. -excuse me. how much is the shirt? - 50 each . （a.extra large c. it sells well d. altogether there are 5 ）2. new technologies have made it possible to turn out new products faster and at a lower cost.( that b. this c. one) 3.- goodbye, john. come back again sometime. -sure. i will .( i did b. i d

2、o c. i shall) 4.at school, some students are active while some are shy, yet they can be good friends with one another.( b. although c. so d. as) 5. this is not my story, nor is it the whole story. my story plays out differently.(a. is there b. there is d. it is ) 6.tom took a taxi to the airport, on

3、ly to find his plane high up in the sky.( a.finding c. being found d. to have found ) 7.the hotel is almost finished, but it still needs one or two weeks to get ready for guests.( a.only b. also c. even ) 8.i looked up and noticed a snake winding its way up the tree to catch its breakfast.( a.to win

4、d b. wind d. wound ) 9.- did you catch what i said? - sorry. i was answering a text message just now.( a.had answered b. have answered c. would answer ) 10. if you happen to get lost in the wild, you? d better stay where you are and wait for help.( a. why c. who d. what ) 11. they are living with th

5、eir parents for the moment because their own house is being rebuilt .( b. has been rebuilt c. is rebuilt d. has rebuilt ) 12. before driving into the city, you are required to get your car washed .( b. wash c. washing d. to wash ) 13. in our class there are 46 students, of whom half wear glasses.( a

6、. in whom b. in them d. of them) 14. this training program can give you a lift at work, as well as increase your income by 40%.( b. so long as c. so much as d. as soon as ) 15. he will come to understand your efforts sooner or later. it ? s just a matter of time .( a. luck b. value d. fact) 16. i ma

7、ke $2, 000 a week. 60 surely won ?t make that big a difference to me.( a. that a big b. a that big c. big a that ) 17. scientists study how human brains work to make computers.( a. when c. that d. whether ) 18. we are said to be living in the information age, a time of new discoveries and great chan

8、ges.( a. an; the b. 不填; the c. 不填；a ) 19. i got close enough to hear them speaking chinese, and i said “ ni hao” , just as i might do in china.(a. must c. can d. should ) 20. it? s surprising that your brother picked up russian so quickly- he hasn ? t live there very long.( b. looked up c. put up d.

9、 made up) lightning flashed through the darkness over sibson ? bedroom skylight（天窗） . sibson was shaken by a clap of thunder before he knew what was happening. the storm had moved directly over his two-story wooden house. then he heard the smoke alarm beeping. sibson rushed down the stairs barefoot

10、to check ; he opened the door to the basement （地下室） , and flames exploded out. sibson ran back upstairs to call 911 from his bedroom. “ i felt safe because the room had a separate outdoor stairway, ” he explains. but the phone didn ? t work, and when he tried to go down the outdoor stairway, he was

11、stopped by a wall of flames. sibson realized he was trapped （困住） . sibson? s house was three kilometers off the main road and was so well hidden by trees that he knew calling for help would be fruitless . up a hill nearby lived sibson? s neighbor, huggons. he was lying in bed when something like a s

12、moke alarm struck his ears. he jumped out bed took his phone and flashlight, and headed down the hillside toward the noise .that was when he saw the rolling heavy smoke. huggons dialed 911, and the operator warned him not to enter the house. but huggons said, “ there is no way i am going to listen t

13、o sibson scream and die in that fire.”“ anyone there?” huggons called out. then he heard “ help! i ? m trapped!”coming from the second floor balcony （陽臺）. he entered the house, but soon had to run back to catch his breath . after one more attempt inside the house, huggons gave up and circled around

14、back. the wind parted the smoke just enough for him to catch sight of sibson. but there was no way to get to him. he shone the flashlight into the woods and noticed a ladder. he took it over to the balcony and pulled sibson down just as the second floor of the house fell off. sibson is still thankfu

15、l when he tells the story, “ i was alone that night, ” he says. “ then i heard the most beautiful sound in my life. it was huggons. ”a on a hill 600 feet above the surrounding land, we watch the lines of rain move across the scene, the moon rise over the hills, and the stars appear in the sky. the v

16、iews invite a long look from a comfortable chair in front of the wooden house. every window in our wooden house has a view, and the forest and lakes seldom look the same as the hour before. each look reminds us where we are. there is space for our three boys to play outside, to shoot arrows, collect

17、 tree seeds, build earth houses and climb trees. our kids have learned the names of the trees, and with the names have come familiarity and appreciation. as they tell all who show even a passing interest, maple makes the best fighting sticks and white pines are the best climbing trees. the air is cl

18、ean and fresh. the water from the well has a pleasant taste, and it is perhaps the healthiest water our kids will ever drink. though they have one glass a day of juice and the rest is water, they never say anything against that. the seasons change just outside the door. we watch maples turn every sh

19、ade of yellow and red in the fall and note the poplars ? putting out the first green leaves of spring. the rainbow smelt fills the local stream as the ice gradually disappears, and the wood frogs start to sing in pools after being frozen for the winter. a family of bird rules our skies and flies ove

20、r the lake. b here is your best chance to travel around the uk in 2012: more than 200 b&bs (bed & breakfast) across england, scotland, wales and northern ireland are selected to offer you amazing services for your stay at their lowest prices! don ? t miss it. just collect the vouchers （活動券）

21、in our b&b daily printed from 01/ 04/ 2012 to 07/ 04/ 2012 and book the stays for your travel following the terms and conditions below: the offer includes a room for the night and a breakfast the next morning. the offer is of two kinds: 20 per room, per night, valid（有效的）during stay period of 02/

22、 04/ 2012- 31/ 05/ 2012 and then again 01/ 08/ 2012- 31/ 10/ 2012; 35 per room, per night, valid during stay period of 01/ 06/ 2012 - 31/ 08/ 2012. the offer is valid for a basic twin or double room only. the stay must be booked directly with the chosen b&bs before 28/ 04/ 2012. if voucher holde

23、rs book either the 20 or 35 per room per night, any additional services such as lunch, evening meal or activities may require an extra charge. but these are not required in order to take up the offer. please check directly with your chosen b&bs to see what extra services are available. vouchers

24、must be presented on arrival. if no vouchers are presented, the b&bs may reserve （保留）the right to charge at full price for every night of stay. vouchers may not be used together with any other offer. the voucher holders must pay for the stay in full at the time of booking. additional 10 may be p

25、aid to confirm（確認）the booking and will be returned on arrival. the b&bs reserve the right to refuse voucher holders ? bookings for people under the age of 18. c i left university with a good degree in english literature, but no sense of what i wanted to do. over the next six years, i was treadin

26、g water, just trying to earn an income. i tried journalism, but i didn? t think i was any good, then finance, which i hated. finally, i got a job as a rights assistant at a famous publisher. i loved working with books, although the job that i did was dull. i had enough savings to take a year off wor

27、k, and i decided to try to satisfy a deep-down wish to write a novel. attending a novel writing ma course gave me the structure i needed to write my first 55, 000 words. it takes confidence to make a new start- there ? s a dark period in-between where you?re neither one thing nor the other. you ? re

28、 out for dinner and people ask what you do, and you ?re too ashamed to say, “ well, i ,m writing a novel, but i?m not quite sure if i?m going to get there. ” my confidence dived. believing my novel could not be published, i put it aside. then i met an agent（代理商） who said i should send my novel out t

29、o agents. so, i did and, to my surprise, got some wonderful feedback. i felt a little hop that i might actually become a published writer and, after signing with an agent, i finished the second half of the novel. the next problem was finding a publisher. after two-and-a-half years of no income, just

30、 waiting and wondering, a publisher offered me a book deal - that publisher turned out to be the one i once worked for. it feels like an unbelievable stroke of luck- of fate, really. when you set out to do something different, there ? s no end in sight, so to find myself in a position where i now ha

31、ve my own name on a contract （合同） of the publisher- to be a published writer - is unbelievably rewarding（有回報的） . d in a recent announcement, harvard and the massachusetts institute of technology (mit) said that they have joined forces to offer free online courses in an effort to attract millions of

32、online learners worldwide. beginning this fall, a number of courses developed by teachers at both universities will be offered online through a new $60 million program, known as edx. “ anyone with an internet connection anywhere in the world can use our online courses, ” harvard president drew faust

33、 said during a meeting to announce the plan. mit has offered a program called opencourseware for ten years that makes materials from more than 2, 000 classes free online. it has been used by more than 100 million people. in december, the school announced it also would begin offering a special certif

34、icate, known as mitx, for people who complete certain online courses. harvard has long offered courses to a wider population through a similar program. the mitx will serve as the foundation for the new learning platform. mit president susan hockfield said more than 120, 000 people signed up for the

35、first mitx course. she said harvard and mit hope other universities will join them in offering courses on the open-source edx platform. “ fasten your seatbelts, ” hockfield said. other universities, including stanford, yale and carnegie-mellon, have been experimenting with teaching to a global popul

36、ation online. the harvard-mit program will be monitored by a not-for-profit （非盈利的）organization based in cambridge, to be owned equally by the two universities. both mit and harvard have provided $30 million to start the program. they also plan to use the edx platform to research how students learn a

37、nd which teaching methods and tools are most successful. e plants are flowering faster than scientists predicted in reaction to climate change, which could have long damaging effects on food chains and ecosystems. global warming is having a great effect on hundreds of plant and animal species around

38、 the world, changing some living patterns, scientists say. increased carbon dioxide (co2) in the air from burning coal and oil can have an effect on how plants produce oxygen, while higher temperatures and changeable rainfall patterns can change their patterns of growth. “ predicting species ? react

39、ion to climate change is a major challenge in ecology, ”said the researchers of several u. s. universities. they said plants had been the key object of study because their reaction to climate change could have an effect on food chains and ecosystem services. the study, published on the nature websit

40、e, uses the findings from plant life cycle studies and experiments across four continents and 1, 634 species. it found that some experiments had underestimated the speed of flowering 8.5 times and leafing by 4 times. “ across all species, the experiments under-predicted the speed of the advance - fo

41、r both leafing and flowering - that results from temperature increases, ” the study said. the design of future experiments may need to be improved to better predict how plats will react to climate change, it said. plants are necessary for life on the earth. they are the base of the food chain, using

42、 photosynthesis to produce sugar from carbon dioxide and water. they let out oxygen which is needed by nearly every organism on the planet. scientists believe the world ? s average temperature has risen by about 0.8 since 1900, and nearly 0.2 every ten years since 1979. so far, efforts to cut emissions of pla