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unit 1 great scientists reading课时作业一. 单项选择1. is there anything else to discuss?_. i guess.a. not at allb. no, thats all c. yes, im sure d. yes, of course2.the development of industry has been_ gradual process throughout _ human existence, from stone tools to modern technology.a. 不填, theb. the; ac. a; 不填d. a; a3.no matter how bright a talker you are, there are times when its better _silent.a. remainb. be remainingc. having remained d. to remain4.i made a promise to myself_this year, my first year in high school, would be different.a. whetherb. whatc. thatd. how5.studying wendys menu, i found that many of the items are similar to_ of mcdonalds.a. thoseb. onesc. anyd. all6. all the animals ive ever had, these two dogs arc the most sensitive to the spoken word.a. fromb. ofc. ford. with7.youras a student will be excellent if you develop a habit of reflecting on how you learn.a. operationb. growthc. performance d. character8.i think tom, as the head of a big department, should either study regularly or_his job.a. quitsb. to quitc. quittingd. quit9.we live in an agemore information is available with greater ease than ever before.a. whyb. whenc. to whomd. on which10.the research lacksevidence, and therefore, its conclusions are doubtful.a. solidb. fiercec. severed. potential11.its such a nice place, mother said as she sat at the table_ for customs.a. to be reserved b. having reserved c. reservingd. reserved12.according to scientists, our mental abilities begin to_from the age of 27 after reaching the highest level at 22.a. differb. shrinkc. faild. decline13.peter had intended to take a job in business, but _that plan after the unpleasant experience in canada in 2010.a. had abandoned b. abandoned c. abandond. will abandon14.brown said he was by no means annoyed; _ he was glad to be able to make himself clearly understood.a. all in allb. for one thingc. on the contrary d. by the way15.armed with the information you have gathered, you can_ preparing your business plan.a. set outb. set aboutc. set offd. set up16. -tom sat up late recently. - yes, that might _ why he slept in class. a. make for b. account for c. push for d. compensate for17.- when did you get home last friday? -it was not until midnight _ it was raining hard. a. when b. which c. before d. that 18. however occupied you are with study, try to _ at least 15 minutes each day to have some exercise.a. put out b. put through c. put off d. put aside19. the cloning of human embryos is very _ , and causes much debate around the world. a. conventional b. controversial c. contrary d. contradictary20. you are _ to be disappointed if you hope to go to college without hard work.a. vague b. bound c. eager d. anxious21. steve jobs, _ former ceo of apples, started with his friend wozniak in a garage in _ late 1970s. a. a; the b. the; / c. the; the d. /; the22. -daddy, would you buy me an ipod if i do well in this monthly exam? - i _, i promise.a. will b. shall c. do d. would 23. the two plans sound good. but dad wont approve _ of them,for they are not practical.a. any b. both c. each d. either24.unfortunately , wei fang was _ of the ability to speak when he was five years old. a. stolen b. picked up c. robbed d. striken25. _ of the danger of traveling by airplane, i often take the train as my first choice. a. to convince b. convincing c. convinced d. being convinced26. with the development of economy, our country is becoming more and more powerful _ financial situation.a. on account of b. in terms of c. on behalf of d. in place of 27 -the little boat is _ safe . dont you think so, mike ? - no worries! ive been on this boat dozens of times.a. something but b. nothing but c. anything but d. everything but28. under no circumstances and at no time _ be the first _ nuclear weapons.a. we shall ; using b. shall we; to use c. shall we ; using d. we shall; to use29. the boys and girls were happily making a snowman, _ with cold.a. their faces red b. their faces were red c. their faces turned red. d. their faces to be red30. - how is yangzhou taizhou airport going ? - _. a. to say is easier than to do b. better late than never c. so far, so good d. the more, the better 二. 阅读理解aeaster(复活节) is still a great day for worship, candy in baskets and running around the yard finding eggs, but every year it gets quite a bit worse for bunnies.and no, not because the kids like to pull their ears. the culprit is climate change, and some researchers found that rising temperatures are having harmful effects on at least five species of rabbit in the us.take the lower keys marsh rabbit, for instance. an endangered species that lives in the lower florida keys, this species of cottontail is a great swimmer it lives on the islands! but it is already severely affected by development and now by rising sea levels. according to the center for biological diversity, an ocean level rise of only 0.6 meters will send these guys jumping to higher ground and a 0.9-meter rise would wipe out their habitat (栖息地) completely.the snowshoe hare, on the other hand, has a color issue. most of these rabbits change their fur color from white in the wintertime to brown in the summer, each designed to give them better cover from predators(捕食者). as the number of days with snow decreases all across the country, however, more and more bunnies are being left in white fur during brown dirt days of both fall and spring, making them an easier mark for predators. researchers know that the color change is controlled by the number of hours of sunlight, but whether the rabbit will be able to adapt quick enough to survive is a big question. the national wildlife federation has reported that hunters have noticed their numbers are already markedly down.american pikas or rock rabbits, a relative of rabbits and hares, might be the first of these species to go extinct due to climate change. about 7-8 inches long, pikas live high in the cool, damp mountains west of the rocky mountains. as global temperatures rise, they would naturally migrate (迁徙) to higher ground but they already occupy the mountaintops. they cant go any higher. the national wildlife federation reports that they might not be able to stand the new temperatures as their habitat heats up.the volcano rabbit has the same problem. these rabbits live on the slopes of volcanoes in mexico, and recent studies have shown that the lower range of their habitat has already shifted upward about 700 meters, but there are not suitable plants for them to move higher, so they are stuck in the middle. scientists are concerned about their populations.native to the us, pygmy rabbits weigh less than 1 pound and live in the american west. they are believed to be the smallest rabbits in the world. their habitats have been destroyed by development. several populations, such as the columbia basin pygmy, almost went extinct and were saved by zoo breeding programs. pygmy rabbits also rely on winter cover by digging tunnels through the snow to escape predators, but lesser snowfall is leaving them exposed.all of this gives new meaning to dressing up in a giant bunny costume this easter. 1 the writer mentions easter at the beginning of the passage in order to_.a. show the importance of easter dayb. introduce the issue about bunniesc. remind people of easter traditions d. discuss the relationship between easter and bunnies2. the word culprit ( paragraph 2) is closest in meaning to_.a. criminalb. judgec. victimd. producer3.according to the passage, some rabbits can now be easily discovered by predators because they_a.are exposed to more skillful huntersb.have moved to habitats with fewer plantsc.havent adapted themselves to climate changed.cant change their fur color into white in the fall and the spring4. the problem faced by volcano rabbets and rock rabbits is that_.a. both are affected by 1ess snowb. both are affected by rising sea levelsc. neither can find enough foodd. neither can migrate to higher places5 which best describes the writers tone in the postage?a. approving.b. concerned.c. enthusiastic.d. doubtful.bat the top of a three-story brick building, sue and johnsy had their studio. one of the girls was from maine; the other from california. they had met in an eighth street restaurant, and found their tastes in art, chicory salad and bishop sleeves so much in tune that the joint studio resulted. that was in may. in november, a cold, unseen stranger, whom the doctors called “pneumonia”, stalked about the district, touching one here and there with his icy fingers. johnsy was among his victims. one morning the busy doctor invited sue into the hallway with a bushy, gray eyebrow. “she has one chance in ten,” he said. “and that chance is for her to want to live. your little lady has made up her mind that shes not going to get well. has she anything on her mind?” “she wanted to paint the bay of naples some day,” said sue. “paint? bosh! has she anything on her mind worth thinking about twice? a man, for instance?”“no, doctor; there is nothing of the kind.” “well,” said the doctor. “i will do all that science can accomplish. but whenever my patient begins to count the carriage in her funeral procession, i subtract 50 per cent from the power of medicines.” after the doctor had gone, sue cried. johnsy lay, scarcely making a movement under the bedclothes, with her face toward the window. she was looking out and countingcounting backward. “twelve,” she said, and a little later “eleven,” and then “ten,” and “nine,” and then “eight, and “seven,” almost together. sue looked out of the window. what was there to count? there was only a bare, dreary yard to be seen, and an old, old ivy vine climbed half way up the brick wall of the brick house. the cold breath of autumn had blown away its leaves, leaving it almost bare. “six, said johnsy, in almost a whisper. “theyre falling faster now. three days ago there were almost a hundred. it made my head ache to count them. but now its easy. there goes another one. there are only five left now.” “five what, dear?” “leaves, on the ivy vine. when the last one falls i must go, too. ive known that for three days. didnt the doctor tell you?” “oh, ive never heard of such nonsense. dont be so silly. why, the doctor told me this morning that your chances for getting well soon were ten to one! try to take some soup now, and let sue go and buy pork chops for her sick child.”6. what do you know about sue and johnsy from the first paragraph? a. they had a lot in common with each other. b. they are from the same state in the united states. c. they set up their studio on the third floor in order to see the ivy vine ou
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