Professor Backman took up scientific research...

Professor Backman took up scientific research for decades，and this is________he devoted all his life to.

高三英语单项填空中等难度题查看答案及解析

As temperatures go up, bison（北美野牛）get smaller. Joseph Craine, research assistant professor in the Division of Biology at Kansas State University, examined how climate change during the next 50 years will affect grazing（放牧）animals such as bison and cattle in the Great Plains.

“Bison are one of our most important conservation animals and hold a unique role in grasslands in North America,” Craine said.　 “In addition to their cultural and ecological significance, they’re economically important.　 There are about half a million bison in the world.” Craine analyzed a data set of 290,000 weights, ages and sexes collected from 22 bison herds（兽群）throughout the U. S. The organizations kept annual records of each animal in the herd and matched the data with the climates of the sites.

Based on differences in sizes of bison across herds, Craine found that during the next 50 years, future generations of bison will be smaller in size and weigh less. Climate is likely to reduce the nutritional quality of grasses, causing the animals to grow more slowly.

“We know that temperatures are going to go up,” Craine said.　 “We also know that warmer grasslands have grasses with less protein（蛋白质）, and we now know that warmer grasslands have smaller grazers. It all lines up to suggest that climate change will cause grasses to have less protein and cause grazers to gain less weight in the future.”

Craine said the results of climate change in coming decades can already be seen by comparing bison in cooler, wetter places with those in warmer, drier places. For example, the average 7-year-old male bison in South Dakota weighed 1, 900 pounds, while an average 7- year-old male bison in Oklahoma — a warmer place — weighed 1, 300 pounds.

“The difference in temperature between those two states is around 20 degrees Fahrenheit, which is about three times the projected increase in temperatures over the next 75 years,” Craine said. “It is a clear indicator that long-term warming will affect bison and is something that will happen across the U.S. over the next 50-75 years.”

1.In the next fifty years, researchers Say, bison will ________.

A. become smaller and lighter

B. disappear in the Great Plains

C. play a less important part

D. adapt to different climate changes

2.The underlined word “grazers” probably refers to ________.

A. the researchers　 B. the grasses

C. the bison　　　　　　 D. the protein

3.What is the main reason for the bison to become smaller?

A. The deceasing amount of grass.

B. The rising temperature.

C. The rising number of bison.

D. The loss of weight.

4.Paragraph 5 is written as an example to show ________.

A. Craine’s prediction will come true in 50 years

B. bison are smaller than in the past

C. the nature balance is being destroyed

D. bison’s size is linked with different climate

高三英语阅读理解中等难度题查看答案及解析

I took a job as a receptionist for a veterinarian (兽医)) almost five decades ago. As an enthusiastic animal lover, I ___ the position on the condition that I wouldn’t have to assist with any ___ animals. I couldn’t bear to see any creature in pain.

At the end of my first week, we are closing the office for the day ___ a young man ran up to us holding a severely injured Doberman puppy in his arms and ___ us to save his life. A car had hit the four-month-old puppy.

The doctor and I ran back into the ___ room. The only place the skin was still ___to this poor little animal's body was around one shoulder. The vet worked ___for what seemed like hours, stitching(缝合)him back together again. That was the easy ___The puppy had broken multiple ___ , including his spine (脊 柱).If he survived the next few days, we were quite sure he would never __ again.

That day forever changed my life. The veterinarian guided me, and I became his assistant in all things ____.One of my first jobs was to give that Doberman puppy daily physical care. I remember ___ his tiny legs to try to keep his muscles from becoming ____

Weeks went by until one day, I felt this little fighter push back ever so slightly. And he ___to push back until he could finally use his legs.

Fast-forward about a year. I walked into the clinic's waiting room and called the name of the next client. Suddenly, a huge Doberman who had been standing ___with his owner on the opposite side of the room ____ loose and rushed toward me. I found myself pinned____the wall with this magnificent dog standing on his legs, his front paws on my shoulders,___ my face with joyful and _____ kisses!

I still tear up in amazement at the display of love and __ the dog had for me that day all those years ago.

1.A.hated B.changed C.accepted D.noticed

2.A.active B.terrible C.fierce D.wounded

3.A.when B.because C.if D.while

4.A.leading B.sending C.forcing D.begging

5.A.large B.operating C.waiting D.empty

6.A.attached B.applied C.left D.covered

7.A.peacefully B.tirelessly C.crazily D.immediately

8.A.part B.factor C.medicine D.accident

9.A.positions B.teeth C.legs D.bones

10.A.move B.walk C.bark D.eat

11.A.difficult B.medical C.deadly D.meaningful

12.A.moving B.squeezing C.lifting D.twisting

13.A.fatter B.drier C.harder D.weaker

14.A.meant B.continued C.stopped D.planned

15.A.nervously B.painfully C.quietly D.seriously

16.A.broke B.felt C.fought D.sat

17.A.into B.for C.against D.by

18.A.touching B.hitting C.lightening D.washing

19.A.first B.sticky C.abundant D.farewell

20.A.relief B.comfort C.ease D.gratitude

高三英语完形填空中等难度题查看答案及解析

A Grateful Patient

I took a job as a receptionist for a vet (兽医) almost five decades ago. As a keen animal lover, I accepted the position on the condition that I wouldn’t have to assist with any wounded animals. I couldn’t ________ to see any creature in pain.

At the end of my first week, we were closing the office for the day when a young man ran up to us holding a severely_______ Doberman Pinscher puppy(杜宾幼犬) in his arms and_______ us to save his life. The four-month-old puppy had been hit by a car.

The vet and I ran back into the _______room. It was hurt badly. The only place the skin was still attached to this poor little animal’s body was around one shoulder. The vet worked tirelessly for what seemed like_______, sewing him back together again.　 That was the _______ part. The puppy had broken too many bones, including his spine(脊柱). Even if he ________ the next few days, we were quite sure he would never walk again.

That day forever _____ my life. The vet instructed me, and I became his____ in all things medical. One of my first jobs was to give that Doberman puppy daily physical _______. I remember moving his tiny legs to try to keep his _____ from withering(萎缩).

Weeks went by until one day, I felt this little fighter push back ever so_____. And he continued to push back_____ he could finally use his legs. It recovered.

Fast-forward about a year, I walked into the clinic’s crowded waiting room and called the name of the next client. Suddenly, a/an __________ Doberman who had been standing quietly with his owner on the opposite side of the room _____ loose and rushed toward me. I found myself　 _____ against the wall with this magnificent dog standing on his hind legs, his front paws on my shoulders, _______ my face with plentiful and joyful kisses!

I still tear up in amazement at the display of love and _______ the dog had for me that day all those years ago. I __________ to be a vet technician for 14 years, and since retirement, I’ve volunteered at a no-kill animal shelter. In all the time that has passed and all the experiences I have had, I’ve _____ met a dog who didn’t know that it had been rescued in one way or another.

1.A.help B.stop C.bear D.offer

2.A.punished B.poisoned C.affected D.injured

3.A.begged B.blamed C.reminded D.forced

4.A.sitting B.waiting C.nursing D.operating

5.A.years B.hours C.minutes D.seconds

6.A.cruel B.easy C.tough D.calm

7.A.survived B.existed C.struggled D.solved

8.A.improved B.saved C.changed D.damaged

9.A.applicant B.servant C.consultant D.assistant

10.A.management B.treatment C.recovery D.capacity

11.A.muscles B.skin C.bone D.hair

12.A.seriously B.heavily C.slightly D.rapidly

13.A.after B.as C.till D.when

14.A.awkward B.tiny C.weak D.huge

15.A.hung B.broke C.pulled D.stayed

16.A.pinned B.stuck C.plugged D.hugged

17.A.barking B.hitting C.washing D.biting

18.A.inspiration B.gratitude C.embarrassment D.sympathy

19.A.tried on B.acted on C.settled on D.went on

20.A.never B.ever C.even D.seldom

高三英语完形填空中等难度题查看答案及解析

I took a job as a receptionist for a vet almost five decades ago. As a keen animal lover, I accepted the position on the condition that I wouldn’t have to assist with any wounded animals. I couldn’t bear to see any creature in pain.

At the end of my first week, we were closing the office for the day when a young man ran up to us holding a severely injured Doberman puppy in his arms and begging us to save his life. The four- month-old pup had been hit by a car.

The doctor and I ran back into the operating room. The only place the skin was still attached to this poor little animal’s body was around one shoulder. The vet worked tirelessly for what seemed like hours, stitching him back together again. That was the easy part. The puppy had broken multiple bones, including his spine(脊椎). If he survived the next few days, we were quite sure he would never walk again.

That day forever changed my life. The vet mentored me, and I became his assistant in all things medical. One of my first jobs was to give that Doberman puppy daily physical therapy. I remember moving his tiny legs to try to keep his muscles from withering.

Weeks went by until one day, I felt this little fighter push back ever so slightly. And he continued to push back till he could finally use his legs.

Fas-forward about a year, I walked into the clinic’s crowded waiting room and called the name of the next client. Suddenly, a huge Doberman who had been standing quietly with his owner on the opposite side of the room broke loose and rushed toward me. I found myself pinned against the wall with this magnificent dog standing on his hind legs, his front paws on my shoulders, washing my face with abundant and joyful kisses!

I am still amazed at the display of love and gratitude the dog had for me that day all those years ago. I went on to be a vet tech for 14 years, and since retirement, I’ve volunteered at a no-kill animal shelter.

1.Why was the author unwilling to assist the vet with injured animals at first?

A.She didn’t like animals at all. B.She couldn’t stand working with the vet.

C.She had no experience of tending animals. D.She would feel sad seeing animals injured.

2.After the operation, the author thought the puppy___________.

A.would not survive B.would lose the ability to walk

C.would recover soon D.would suffer great pain

3.Which of the following best describes the author?

A.Humorous. B.Caring.

C.Ambitious. D.Demanding.

4.What’s the best title for the text?

A.A dog’s gratitude. B.An experience in clinic.

C.I, an animal lover. D.An incredible miracle.

高三英语阅读理解中等难度题查看答案及解析

It took over a decade for the economist’s far-sighted views to gain _______, but they have widespread support now.

A.currency B.certificate C.sympathy D.scholarship

高三英语单项填空困难题查看答案及解析

Dear Professor Liu Kai,

I want to thank you for offering me such useful advice during my research. I have completed my article about ______, and I’m quite satisfied with it. It has just been ______ on our school website. I never knew that advertisements were so interesting! The ______ I found will really help me to educate others. I hope that after they read my article, my schoolmates will understand that public service ads are ______ to educate us about public welfare issues, and that commercial ads are meant to ______ products or services. Before our talk, I did not think very much about how an advertiser might be trying to trick ______ into buying a product or a service. Now I think I will be much smarter about what things to buy.______ there are lots of exciting images and persuasive language. I will remember to think about the things I buy. I will ______ pay a lot more attention to the nationwide public service ad campaigns, because now I know ______ helpful they can be. I will encourage my friends to pay attention to them as well.

Thank you again for helping me find so much ______ information!

Yours faithfully,

Qian Lili

1.A. advertisements　　 B. sports　　 C. public services　　 D. campaigns

2.A. printed　　 B. broadcast　　 C. published　　 D. announced

3.A. article　　 B. information　　 C. ads　　 D. website

4.A. convinced　　 B. delighted　　 C. determined　　 D. intended

5.A. promote　　 B. save　　 C. prepare　　 D. protect

6.A. students　　 B. professors　　 C. customers　　 D. advertisers

7.A. If only　　 B. If　　 C. Even if　　 D. Only if

8.A. still　　 B. also　　 C. too　　 D. even

9.A. how　　 B. what　　 C. although　　 D. whether

10.A. useless　　 B. useful　　 C. thankful　　 D. boring

高三英语完形填空中等难度题查看答案及解析

Professor Smith, for ________ work matters most, is devoted to his research work.

A.whose B.him C.whom D.what

高三英语单项填空中等难度题查看答案及解析

Cigarette butts (烟蒂) are everywhere - clogging up our streets, littering our beaches - and for decades they’ve been thought of as “unrecyclable”. But a New Jersey-based company, called TerraCycle, has taken on the challenge, and has come up with a way to recycle millions of cigarette butts and turn them into industrial plastic products. Its aim is to take items that people normally consider impossible to recycle, and then use science to figure out a way to do just that.

Despite the increase in anti-smoking ads and messaging over the past 20 years, global sales of cigarettes increased by 8 percent, and a whole lot of those cigarette butts are ending up as trash, which can surely pollute the surrounding environment.

So how do you go about turning all those poisonous ends into something useful? TerraCycle does this by first breaking them down into separate parts. They mix the remaining materials, such as the tobacco and the paper, with other kinds of rubbish, and use it on non-agricultural land, such as golf courses. The filters (过滤嘴) are a little harder. To recycle these, TerraCycle first makes them clean and cuts them into small pieces, and then combines them with other recycled materials, making them into liquid for industrial plastic products.

They now have more than 7,000 cigarette recycling bins in nine countries around the world. They’re also expanding their recycling offerings to the rest of the 80 percent of household waste that currently can’t be recycled, such as chocolate packaging, pens, and mobile phones. The goal is to use the latest research to find a way to stop so much waste ending up in. landfill (垃圾填埋), and then get companies to fund the process. And so far, it’s working.

“We haven’t found anything that we can’t recycle,” communications director of Terra Cycle, Albe Zakes, said. “But with the amount and variety of packaging and litter in the world, we are always looking for new waste streams to address.”

1.Which of the following is true according to the text?

A. It is impossible for the filters to be recycled.

B. Terra Cycle has achieved a lot in recycling what used to be considered “unrecyclable”.

C. Anti-smoking ads and messaging have led to people’s quitting smoking.

D. Mobile phones can’t be recycled by means of the latest research.

2.What can we learn about the approach to recycling cigarette butts?

A. Unbelievable and costly.

B. Excellent but hard to carry out.

C. Useless in dealing with other household waste.

D. Practical and environmentally friendly

3.The underlined word ‘“trash” in Paragraph 2 probably means 　　　　 .

A. mineral　　 B. fertilizer

C. rubbish　　 D. poison

4.In Albe Zakes’s opinion, 　　　　 .

A. TerraCycle has successfully recycled everything.

B. they still have a long way to go.

C. it will be too difficult for them to find new ways.

D. the public should be aware of the environmental pollution.

高三英语阅读理解中等难度题查看答案及解析

Dashan, who _________ crosstalk, the Chinese comedic tradition, for decades, wants to mix it up with the Western stand-up tradition.

A. will be learning　　 　　 　　 B. is learning

C. had been learning　　 　　　　 D. has been learning

高三英语单项填空中等难度题查看答案及解析