They have planted () trees in SaiBei, I's a "Great Green Wall" of trees.

A.grounded

B.granted

C.graded

D.planted

These apple trees, ______I planted three years ago, have not borne any fruit.

A．that

B．what

C．which

D．when

Mr. Baker loved planting __3__. The week before last, he brought a few trees home, planted them in the __4__ himself and watered them every day. Several days later, he had to leave for another city. Before he started, he said to Billy, "Take good care of the trees. Some boys near our house always want to steal them."

"Don't worry about them." answered Billy. Six days passed and Mr. Baker came back. He asked," Has anyone ever come to steal the trees？" "No, sir," said Billy, "To stop someone from stealing the trees, I __5__ them up six days ago. I have hidden them for almost a week!"

1)、A.pleased

B.garden

C.pulled

D.trees

E.found

2)、A.pleased

B.garden

C.pulled

D.trees

E.found

3)、A.pleased

B.garden

C.pulled

D.trees

E.found

4)、A.pleased

B.garden

C.pulled

D.trees

E.found

5)、A.pleased

B.garden

C.pulled

D.trees

E.found

Doctors have their own special sleep problems. Residents are famously short of sleep. It is not unusual for. them to work 40 hours in a row without rest. They are not in the least worried about it, confident they can still deliver the highest quality of medical care. But an article in the Journal of the American Medical Association points out that in the morning after 24 hours of sleeplessness, a person' s motor performance is comparable to that of someone who is drunk. Curiously, surgeons who believe that operating under the influence of alcohol is grounds for sacking often don' t think twice about operating without enough sleep.

"I could tell you horror stories," says Jaya Agrawal, president of the American Medical Student Association, which runs a website for residents. Some are terrifying." I was operating after being up for over 36 hours," one writes. "I literally fell asleep standing up and nearly planted my face into the wound."

"Practically every surgical resident I know has fallen asleep at the wheel driving home from work," writes another. "I know of three who have hit parked cars. Another hit a 'Jersey gate' on the New Jersey Expressway, going 105kin/h."

"Your own patients have become the enemy," writes a third, because they are "the one thing that stands between you and a few hours of sleep."

The U.S. controls the hours of pilots and truck drivers. But until such a system is in place for doctors, patients are on their own. If you're worded about the people treating you or a loved one, you should feel free to ask how many hours of sleep they have had and if more rested staffers are available.

Sleep is a funny thing because ______.

A．the longer one sleeps, the less sound sleep he gets

B．the more sleep one gets, the more likely a stroke occurs

C．many people stick to about eight hours of sleep to stay fine

D．many people who sleep six hours a night still feel energetic in the day

1、In prehistoric times people____.

A、ate much more than we do today

B、lived mainly on plant food

C、had a wide-ranging diet

D、were more fussy about what they ate

2、Most of us have come to expect____.

A、no variation in our diet

B、a reduction in food supplies

C、a specialist diet

D、food conforming to a set standard

3、The specialization of food was started by____.

A、the emergence of supermarkets

B、the rise of agriculture

C、the rich countries

D、the modern shops

4、According to the passage, people in the West today survive on____.

A、carrots and tomatoes

B、several thousand types of plants and cereals

C、a very small number of cultivated foods

D、special species planted one thousand years ago

5、The conclusion seems to be that we____.

A、could make use of more natural species

B、don't cultivate the right kind of food

C、produce more food than we need

D、cultivate too many different species

Prehistoric men and women enjoyed a more varied diet(饮食)than people do now, since they ate species(种类)of plant and several hundred thousand types of living things. But only a tiny percentage of these were ever domesticated(驯化). Modern shops have hastened a trend towards specialization which began in the earliest days of agriculture. The food of rich countries has become cheaper relative to wages. It is speedily distributed in supermarkets, but the choice annually becomes less and less great. Even individual foods themselves become more standardized. We live in the world of the carrot specially blunted in order to avoid making a hole in the bag, and the tomato grown to meet a demand for a standard weight of eighteen tomatoes to a kilo. Siri von Reis Altschul asks: "Only the tree major cereals(谷物)and perhaps ten other widely cultivated species stand between famine and survival for the world's human population and a handful of drug plants has served Western civilization for several thousand years. A rather obvious question arises: are we missing something？" After all, there are 800,000 species of plant on earth.

1. In prehistoric times people _____.

A. ate much more than we do today

B. lived mainly on plant food

C. had a wide-ranging diet

D. were more fussy about what they ate

2. Most of us have come to expect _____.

A. no variation in our diet

B. a reduction in food supplies

C. a specialist diet

D. food conforming to a set standard

3. The specialization of food was started by _____.

A. the emergence of supermarkets

B. the rise of agriculture

C. the rich countries

D. the modern shops

4. According to the passage, people in the West today survive on _____.

A. carrots and tomatoes

B. several thousand types of plants and cereals

C. a very small number of cultivated foods

D. special species planted one thousand years age

5. The conclusion seems to be that we _____.

A. could make use of more natural species

B. don't cultivate the right kind of food

C. produce more food than we need

D. cultivate too many different species

There would probably have been other successful commercial growers before Fish if Florida had not been under Spanish rule for some two hundred years. Columbus first brought seeds for citrus trees to the New World and planted them in the Antilles. But it was most likely Ponce de Le6n who introduced oranges to the North American continent when he discovered Florida in 1513. For a time, each Spanish sailor on a ship bound for America was required by law to carry one hundred seeds with him. Later, because seeds tended to dry out, all Spanish ships were required to carry young orange trees. The Spaniards planted citrus trees only for medicinal purpose, however, they saw no need to start commercial groves because oranges were so abundant in Spain.

What is the main topic of the passage？

A．The role of Florida in the American Revolution

B．The discovery of Florida by Ponce de Le6n in 1513

C．The history of the cultivation of oranges in Florida

D．The popularity of Florida oranges in London in the 1770's

Doctors have their own special sleep problems. Residents are famously short of sleep. It is not unusual for them to work 40 hours in a row without rest. They are not in the least worried about it, confident they can still deliver the highest quality of medical care. But an article in the Journal of the American Medical Association points out that in the morning after 24 hours of sleeplessness, a person‟s motor performance is comparable to that of someone who is drunk. Curiously, surgeons who believe that operating under the influence of alcohol is grounds for sacking often don‟t think twice about operating without enough sleep.

“ I could tell you horror stories, ” says Jaya Agrawal, president of the American Medical Student Association, which runs a website for residents. Some are terrifying. “I was operating after being up for over 36 hours, “ one writes. “ I literally fell asleep standing up and nearly planted my face into the wound.”

“ Practically every surgical resident I know has fallen asleep at the wheel driving home from work,” writes another. “I know of three who have hit parked cars. Another hit a „ Jersey gate‟ on the New Jersey Expressway, going 105km/h.”

“Your own patients have become the enemy,” writes a third, because they are “the one thing that stands between you and a few hours of sleep.”

The U.S. controls the hours of pilots and truck drivers. But until such a system is in place for doctors, patients are on their own. If you‟re worried about the people treating you or a loved one, you should feel free to ask how many hours of sleep they have had and if more rested staffers are available.

1.Sleep is a funny thing because ____________.

A. the longer one sleeps, the less sound sleep he gets

B. the more sleep one gets, the more likely a stroke occurs

C. many people stick to about eight hours of sleep to stay fine

D. many people who sleep six hours a night still feel energetic in the day

2.A surgeon who has worked 40 hours in a row without sleep ___________.

A. can still provide quality medical care

B. will remain alert because he is used to it

C. may ignore the potential risk of insufficient sleep

D. should be fired if he continues the medical operation

3.According to one resident, they are short of sleep because ____________.

A. they are too tired to fall asleep

B. they are forbidden to sleep at work

C. they are kept by treating their patients

D. they are too worried about oversleeping

4.They resident who hit a “Jersey gate” on the New Jersey Expressway must have________.

A. fallen asleep

B. drunk too much

C. been driving too long

D. avoided hitting parked cars

5.Patients are now advised to __________.

A. monitor the hours of doctors by themselves

B. make sure that the doctors who treat them have had enough sleep

C. ask for legal control of the hours of doctors

D. allow their doctors to sleep several hours before the operation

As temperatures rise and the polar ice caps melt, the race is 11 to unlock the treasures of the Arctic.

This region is thought to contain one quarter of the world's untapped oil and gas 12 , and there's stiff competition 13 them. America, Canada, Denmark and Norway have all staked territorial claims in the Arctic, and 14 has Russia.

Three years ago, a Russian 15 planted a titanium flag 16 the ocean floor 17 the North Pole. It was a symbol of Moscow's 18 to protect what it sees as its national interest.

In Moscow this week scientists, businessmen and politicians 19 Arctic nations will discuss co-operation, but they're also expected to push their countries' 20 in the region.

11. A. in B. at C. on D. off

12. A. sources B. reserves C. stores D. savings

13. A. in B. at C. as D. for

14. A. as B. like C.so D. such

15. A. trip B. journey C. expedition D. mission

16. A. in B. at C. for D. on

17. A. beneath B. down C. low D. into

18. A. determination B. faith C. courage D. bravery

19. A. away B. off C. from D. towards

20. A. speech B. claims C. assertion D. accounts

A. planted

B. was planted

C. were planted

D. will plant