Mass deaths of birds were not unheard of, but they normally happened unnoticed at sea or in rural areas away from towns. Many birds are weak and die in winter _______ food is scarce.
A．which B．what C．when D．how
高三英语单项填空中等难度题
Mass deaths of birds were not unheard of, but they normally happened unnoticed at sea or in rural areas away from towns. Many birds are weak and die in winter _______ food is scarce.
A．which B．what C．when D．how
高三英语单项填空中等难度题查看答案及解析
While elephants born without tusks (长牙)are not unheard of，they normally form just 2 to 6 percent of the population. However, that is not the case at Mozambique’s Gorongosa National Park, where an astonishing 33 percent of female elephants born after the country’s civil war ended in 1992 are tuskless. While that may appear to be just a coincidence, Joyce Poole, an elephant behavior expert, has another theory. The researcher thinks we may be witnessing unnatural evolution of the species due to the constant hunting of elephants for valuable ivory.
Poole says before the country’s 15-year-long civil war, the 100,000—acre park was home to over 4,000 elephants. However, by the time the conflict ended in 1992, about 90 percent of them had been killed for ivory to help finance weapons (武器)and meat to feed the soldiers. Of the less than 200 survivors, over 50 percent of adult females had no tusks. Therefore, it is not surprising that the park’s tuskless elephant population has grown greatly.
This is not the first time researchers have observed a great change in the population of elephants. At Zambia’s South Luangwa National Park and Lupande Game Management Area， areas which were heavily hunted in the 1970s and 1980s, 35% of elephants 25 years or older and 13% of those younger than 25 are now without tusks. A 2008 study published in the African Journal of Ecology found that the number of tuskless females at the Ruaha National Park in Tanzania went from 10.5 percent in 1969 to almost 40 percent in 1989, largely due to illegal hunting for ivory.
The recent ban on ivory in both the US and China should help get rid of, or at least reduce, elephant hunting. However, scientists are not sure how long it will take for elephants with a higher rate of tuskless females, to change the trend.
1.What is the probable cause of the phenomenon mentioned in Paragraph 1 ?
A. Illegal hunting. B. Constant farming.
C. A pure coincidence. D. Natural evolution.
2.Why did people kill so many elephants during the civil war in Mozambique?
A. To get funds by selling ivory. B. To develop new weapons.
C. To provide food for local people. D. To make ivory products.
3.Which of the following had the earliest record on tuskless elephants?
A. Gorongonsa National Park. B. South Luangwa National Park.
C. The Ruaha National Park. D. Lupande Game Management Area.
4.What does the underlined phrase “the trend”in the last paragraph refer to?
A. Elephants facing greater danger.
B. Elephants growing more slowly.
C. Fewer female elephants staying alive.
D. More female elephants being tuskless.
高三英语阅读理解困难题查看答案及解析
Not until the stadium of Bird’s nest was completed in the end _______ back to their normal position.
A. did our hearts got B. did our hearts get
C. our hearts got D. our hearts did get
高三英语单项填空中等难度题查看答案及解析
214. The mass of people in that country _________not Buddhists (佛教徒) but Christians.
| A．is | B．are | C．was | D．Am |
高三英语单项填空简单题查看答案及解析
Andy was born with a developmental(发展的disorder. The two sides of his brain were not normally together. The right side of his could not communicate with the left. At the age of three, it was for him to walk, speak, and play. He could only echo (重复) back a few words, and walked while someone held each of his hands.
Then came the . He attended an all-day center where he every unimaginable treatment. He struggled, sometimes in , to get stronger. Andy hated it when his parents would ________ him there in the
mornings. However, they —against all odds(逆境)—that he would grow up to live a healthy life. They believed it for themselves, and for Andy.
It .Today Andy is a successful 13-year-old high school student and has won the gold medal for his math competition. His _____ has been nothing short of a wonder. He receives special help with a few things, but _____ his friends in all the activities he loves. Andy overcame a lot of to move from adversity (逆境) to victory.
Ask yourself: “What are the seeds of hidden in my struggles today? If I get up when I , what will that make possible tomorrow? ”
“Overnight success” is the of years of tenacity (坚韧)and continued .
Victory is possible for those who never give in to whatever bad to them. They’ll find the path to their dream. , they will accept adversities as universities that will foster (促进) strength, growth, and skills to attract the victory they seek.
1.A.touched B.used C. mixed D. joined
2.A.ear B. body C. foot D. shoulder
3.A. difficult B.easy C. interesting D. funny
4.A. fast B.strangely C. strongly D. slowly
5.A.power B.attention C. struggles D. failures
6.A.watched B.followed C. received D. enjoyed
7.A. tears B. smiles C.excitement D.disappointment
8.A.make B.leave C.forget D.put
9.A.doubted B.believed C.guessed D. imagined
10.A.lovely B.rich C.normal D.colorful
11.A.paid off B.set out C.ran out D.went off
12.A.story B.problem C. experience D. progress
13.A. sees B. visits C. invites D. joins
14.A.objects B.Enemies C.habits D.difficulties
15.A.flower B.spirit C.strength D.pride
16.A.lose B. fail C.fall D.stop
17.A. mark B.result C. symbol D. sign
18.A.learning B. taking C.offering D. refusing
19.A.related B. happened C.appealed D. referred
20.A.However B. Otherwise C. Besides D. Rather
高三英语完型填空中等难度题查看答案及解析
Andy was born with a developmental disorder. The two sides of his brain were not____normally together. The right side of his____could not communicate with the left. At the age of three, it was____for him to walk, speak, and play. He could only echo(重复) a few words, and walked____while someone held each of his hands.
Then came the ____. He attended an all-day center where he____every unimaginable treatment. He struggled, sometimes in____, to get stronger. Andy hated it when his parents would____him there in the mornings. However, they____ --against all odds(逆境)--that he could grow up to live a____ healthy life. They believed it for themselves, and for Andy.
It____.Today Andy is a successful 13-year-old high school student and has won the gold medal for his math competition. His ____has been nothing short of a wonder. He receives special help with a few things, but____his friends in all the activities he loves. Andy overcomes a lot of____to move from adversity (逆境)to victory.
Ask yourself :"What are the seeds of____hidden in my struggles today? If I get up when I____, what will that make possible tomorrow?"
"Overnight success" is the____of years of tenacity (坚韧)and continued____.
Victory is possible for those who never give in to whatever bad____to them. They'll find the path to their dream. ____, they will accept adversities as universities that will foster(促进) strength, growth, and skills to attract the victory they seek.
1.A. touched B. used C. mixed D. joined
2.A. ear B. body C. foot D. shoulder
3.A. difficult B. easy C. interesting D. funny
4.A. fast B. strangely C. strongly D. slowly
5.A. power B. attention C. struggles D. failures
6.A. watched B. followed C. received D. enjoyed
7.A. tears B. smiles C. excitement D. disappointment
8.A. make B. leave C. forget D. put
9.A. doubted B. believed C. guessed D. imagined
10.A. lovely B. rich C. normal D. colorful
11.A. paid off B. set out C. ran out D. went off
12.A. story B. problem C. experience D. progress
13.A. sees B. visits C. invites D. joins
14.A. objects B. enemies C. habits D. difficulties
15.A. flower B. spirit C. strength D. pride
16.A. lose B. fail C. fall D. stop
17.A. mark B. result C. symbol D. sign
18.A. learning B. taking C. offering D. refusing
19.A. related B. happened C. appealed D. referred
20.A. However B. Otherwise C. Besides D. Rather
高三英语完形填空中等难度题查看答案及解析
We ______certain livings as birds not because they have long legs or short legs,but because they all have
feathers.
| A．think | B．classify | C．look | D．divide |
高三英语单项填空简单题查看答案及解析
For many years,drivers of electric trains in the UK were at risk from bird strikes.When they were travelling at high speeds,a____hitting the front of the train could____the windscreen of the driving cab.I once had a pigeon break the offside window into pieces at only 40 mi/h.The pigeon didn't____,but I did—I am alive!
In an effort to provide a better degree of____and reduce delays,of course,research was done to find a ___toughened glass windscreen for____.As part of this research,____was sought from airline suppliers,who said that a good test for ant new glass type was to fire a chicken at high speed____the window material.The____was soon set up and a number of dead chickens obtained.
Even though it was of a standard used by____,the test with the first chicken showed that the glass was not____enough.A second test____broke the glass.Another test damaged the third windscreen!Repeated____showed that no glass could____the chicken being fired at it.More advice was sought from the airline people,who could not understand____the glass they offered could withstand（禁得住）airborne bird strikes but____failing the railway tests. They decided to come to____test.
The railway research team set up a____test and sent someone to obtain more chickens.____the chickens arrived,it was then that the airline experts realized what was wrong.They told the railway research team."You know,you do____to defrost（解冻）the chickens first."
1.A. device B. chicken C. bird D. stone
2.A. keep out B. pass through C. escape from D. take away
3.A. fly B. appear C. fall D. survive
4.A. safety B. speed C. travel D. temperature
5.A. heavy B. bright C. suitable D. flat
6.A. passengers B. drivers C. animals D. pilots
7.A. information B. energy C. courage D. advice
8.A. off B. towards C. beyond D. across
9.A. test B. research C. business D. organization
10.A. government B. army C. railways D. airlines
11.A. popular B. attractive C. tough D. transparent
12.A. also B. then C. ever D. only
13.A. changes B. attempts C. events D. ideas
14.A. reflect B. prevent C. separate D. resist
15.A. whether B. how C. why D. when
16.A. avoided B. kept C. stood D. stopped
17.A. witness B. cancel C. prove D. correct
18.A. strange B. strict C. new D. necessary
19.A. The moment B. Now that C. Even if D. In case
20.A. manage B. agree C. expect D. have
高三英语完形填空中等难度题查看答案及解析
The mass death of flying foxes in extreme heat in North Queensland last month underlines the importance of University of Queensland wildlife research released today.The UQ research sheds light on how various species have responded to major climate events.
A study led by UQ School of Earth and Environmental Science researcher Dr Sean Maxwell has spent more than 70 years quantifying the responses of various species.
“The growing frequency and intensity of extreme weather events such as cyclones, droughts and floods is causing unpredictable and immediate changes to ecosystems and blocking existing management efforts,” Dr Maxwell said.“Some of the negative responses we found were quite concerning, including more than 100 cases of dramatic population declines and 31 cases of local population extinction following an extreme event.”
"Populations of critically endangered bird species in Hawaii, such as the palia, have been annihilated due to drought, leaving none of its kind, and populations of lizard species have been wiped out due to cyclones in the Bahamas."
Cyclones were the most common extreme event for birds, fish, plants and reptiles, while mammals and amphibians were most responsive to drought events, with drought leading to 12 cases of major population decline in mammals.Drought also led to 13 cases of breeding declines in bird populations and 12 cases of changes in the composition of invertebrate communities.
UQ Centre for Biodiversity and Conservation Science director Professor James Watson said the detailed information would help inform ecosystem management.
“The research clearly shows species will respond, often negatively, to extreme events,” Professor Watson said.“As climate change continues to ensure extreme climate and weather events are more and more common,we now need to act to ensure species have the best chance to survive.Wherever possible, high quality and intact habitat areas should be retained, as these are the places where species are most resilient(易恢复的) to increasing exposure to extreme events.”
1.How was the UQ researchconducted?
A. By observing extreme weather events.
B. By protecting the endangered species.
C. By recording reactions of animals to extreme climate.
D. By analyzing the reason why mass animal death happened.
2.What does the underlined word “annihilated” in paragraph 4 probably mean?
A. destroyed B. defeated
C. decreased D. disappeared
3.Which of the following sentences is true about extreme weather events?
A. Drought caused 13 cases of distinctionin bird populations.
B. Drought caused 12 cases of population decline in mammals.
C. Birds and mammals are most responsive to cyclones.
D. Cyclones wiped out populations of lizard.
4.What can we infer from Professor Watson’s words?
A. Animals often show negative responses to extreme events.
B. The existing management ways for wildlife protection are limited.
C. Different methods should be adopted to ensure the survival of different species.
D. Complete and undamaged habitats are of great importance to species’ survival.
高三英语阅读理解中等难度题查看答案及解析
The lions and leopards(豹) of a national park in India normally do not get along. They_______each other for space and food. But about a year ago, a young lioness in the park _______ a baby leopard.
The 2-month-old baby with brown ears and blue eyes was_______,and the lioness spent weeks nursing,_______ and caring for him until he died. She treated him as if he were one of her own two sons, who were about the same age. This was a_______case of cross-species adoption in the wild, and the only documented example involving animals that are normally _______.
_______,the park workers thought the association would be brief, but this went on. The family were _______to tour the park. The lioness took care of the baby, and_________meat that she hunted. The new brothers played with him and occasionally followed him up trees. This unlikely________was surely amazing.
Although this adoption was puzzling, it highlights the________between the two species. Until they reach young adulthood, when social differences __________, lions and leopards play and beg for milk in similar ways. For this mother lioness, she may have ________the baby's more leopard-like features —his smell, size and spotted appearance. He just jumped in.
The__________ of the inter species adoption in the wild would be sweet enough for a children's book, yet________enough to attract scientists.
1.A.put up with B.take advantage of C.depend on D.fight with
2.A.scared B.adopted C.spotted D.attacked
3.A.lazy B.brave C.weak D.dangerous
4.A.feeding B.checking C.following D.dressing
5.A.simple B.typical C.famous D.rare
6.A.friends B.competitors C.partners D.neighbors
7.A.Initially B.Luckily C.Certainly D.Unexpectedly
8.A.expected B.observed C.persuaded D.pushed
9.A.cooked B.packed C.shared D.burned
10.A.experience B.affair C.agreement D.connection
11.A.communication B.similarities C.behavior D.differences
12.A.emerge B.remain C.recover D.survive
13.A.compared B.disliked C.ignored D.protected
14.A.incident B.experience C.report D.tale
15.A.strange B.caring C.reliable D.moving
高三英语完形填空中等难度题查看答案及解析