Lucy, whose skeleton(骨骼) was discovered in Ethiopia in 1974, died shortly after she fell out of a tree, according to a new study published Monday in the British journal Nature.

For their research, Kappelman and Dr. Richard Ketcham used a CT scanner to create more than 35,000 "slices" of Lucy's skeleton. Scientists named her Lucy from the Beatles song "Lucy in the Sky with Diamonds", which was played at the camp the night of her discovery.

The following analysis of the slices showed sharp, clean breaks seen at the end of Lucy's right humerus(肱骨) are similar to bone breaks seen in victims of falls.

The researchers concluded that these and other breaks in her skeleton show that Lucy, who is believed to have stood about 3 feet 6 inches and weighed about 60 pounds, fell feet first and used her arms to support herself — but that the injury was too severe to have been survivable.

The researchers estimate that Lucy was going about 35 miles an hour when she hit the ground after falling from a height of roughly 40 feet, according to the statement.

That sounds plausible. But other scientists are doubtful. "There are countless explanations for bone breaks," Dr, Donald C, Johanson, director of the Institute of Human Origins and one of the scientists who discovered Lucy, said, "The suggestion that she fell out of a tree is largely a just-so story and therefore unprovable." Johanson said it was more likely that Lucy's breaks occurred long after she died, saying that "elephant bones appear to have the same kind of breaks, It's unlikely they fell out of a tree. "

But the new research focused on "a small number of breaks" that are consistent with "high-energy bone-to-bone influences" and which differ from the sorts of breaks commonly seen in other collected bones. Kappelman responded in an email, "These appear to have occurred at or near the time of death."

1.What can we know about Lucy from Kappelman and Dr. Richard Ketcham's research?

A. She got her name from a song.

B. She had more than 35,000 slices.

C. She couldn't use her arms properly.

D. She made an effort to save herself.

2.What does the underlined word "plausible" in Paragraph 6 probably mean?

A. Reasonable.B. Creative.C. Surprising.D. Unbelievable.

3.Which of the following would Johanson probably agree?

A. Elephants are unlikely to die from falling.

B. Lucy got breaks at or near the time of death.

C. Other reasons for the breaks should be considered.

D. Lucy's bone breaks differ from other bone breaks.

4.What conclusion can we draw from the passage?

A. Lucy didn't die from falling out of a tree.

B. The newly published study was meaningless.

C. The argument on how Lucy died will continue.

D. Scientists will find another way to solve the problem.

When I was young at school, I loved to talk, a characteristic not always appreciated by Miss Jordan, my tenth-grade English teacher.

She was a teacher no one wanted because she was so ________. She stood about five-foot-five, was very thin and wore her hair pulled back in a way that gave her a horsy ________. She wore those half-circular reading glasses. Whenever she got upset, she would lower her head and look at you over the top of her glasses.

One day in her class I was busy talking. I didn’t ________ she had stopped teaching and was ________ straight at me. “Young lady, I would like to see you after school.”

Later Miss Jordan ________ in a low, but very firm voice that showed she expected me to listen when she was talking. For ________ she told me to write a thousand word essay on education and its effect on the economy(经济). She wanted it in by the following Wednesday.

Well, I met my deadline. I was ________. It was a good paper. And I expected a sign of ________ from her. The next day in class, ________, she was looking at me over her glasses. She called me forward and ________ my paper. “Go back and rewrite,” she said. “Remember, each paragraph is supposed to begin with a topic sentence.” When she gave my paper back a second time, she ________ the grammar. The third time, the spelling. The fourth time, it was punctuation. The fifth, it wasn’t neat enough. I was ________!

The sixth time, I rewrote the whole paper ________, in ink, leaving generous space. When she saw it, she removed her glasses and smiled. She finally ________ the paper. After that, I put the whole thing out of my ________.

Two or three months passed. One day Miss Jordan came into the class and said to us: “Class, do you still ________ an essay contest held citywide? They’ve announced the ________. I am happy to inform you that Mary has won third prize in the essay contest —‘On the Impact of Education on the Economy’.”

I was amazed and ________. It was the first time I had ever won a prize. Years later, I told a reporter that story, and my comments—including my unfriendly ________ of Miss Jordan’s appearance. Miss Jordan wrote me, and said that her appearance wasn’t what was important. What was important was the ________ I had learnt. When I wrote and rewrote that paper for her, I began to learn how to discipline myself.

1.A. open-mindedB. strictC. carefulD. cold-hearted

2.A. lookB. shapeC. styleD. character

3.A. guessB. believeC. imagineD. realize

4.A. wavingB. laughingC. staringD. running

5.A. complainedB. whisperedC. explainedD. apologized

6.A. objectionB. motivation

C. punishmentD. encouragement

7.A. confidentB. concernedC. nervousD. helpful

8.A. suggestionB. approvalC. commentD. respect

9.A. otherwiseB. moreoverC. howeverD. therefore

10.A. changedB. toreC. openedD. returned

11.A. masteredB. correctedC. taughtD. identified

12.A. relievedB. gratefulC. relaxedD. sick

13.A. carelesslyB. eagerlyC. vaguelyD. slowly

14.A. publishedB. acceptedC. finishedD. studied

15.A. mindB. listC. questionD. sight

16.A. rememberB. enterC. expectD. organize

17.A. plansB. winnersC. participantsD. names

18.A. curiousB. anxiousC. thrilledD. enthusiastic

19.A. conclusionB. reaction

C. recommendationD. description

20.A. lessonB. meaningC. skillD. result

How did the ancient Chinese keep food warm in winter?

Facilities like electric rice cookers, microwaves, and electric kettles, make it easy for people to keep food warm and enjoy a comfortable winter. So how did Chinese people in ancient times keep food warm in winter without these? In fact, ancient Chinese people used their own methods of heat preservation as early as the Shang and Zhou dynasties.

● “Wen Ding”, ancient rice cooker

One of the major functions of an electric rice cooker is to keep food warm. The “Wen Ding”, an ancient cooking container, served the same purpose, but instead of using electric energy, the ancient cooking container, served the same purpose, but instead of using electric energy, the ancient cooking container preserved heart by burning fuels like charcoal.

The “Wen Ding” unearthed in Nanjing in 1989 is thought to be the oldest of its kind discovered in China, dating back to the Stone Age, The craftsmanship of making the “Wen Ding” was developed in the Bronze Age. The bronze Ding from Shang and Zhou dynasties took on different shapes and structures.

● “Ran LU”, ancient small hot pot

The “Ran LU” is a small size cooking vessel(器皿) made of bronze, which can be divided into three parts. A charcoal stove forms the main structure, with a bottom tray to hold charcoal ashes, and a movable cup at the top. Some experts have concluded that the vessel’s structure suggests it may have been used as a small hot pot and that these vessels became popular in the Warring States Period(475—221 BC)

●Bronze You, ancient kettle

The Bronze You was one of the most common wine containers during the Shang and Zhou dynasties. The Bronze You can also be used to warm wine. For example, the Bronze You with beast mask design, unearthed in Jiangxi province, has an opening where charcoals could be placed. Just as people today can’t do without an electric kettle, the Bronze You allowed people to enjoy a hot drink.

●Bronze Yan, ancient steamer

Although the “Wen Ding” was effective at keeping food warm, the ancient Chinese people later found that its burning produced pollution. As a result, the Bronze Yan was made with a two-tier structure and used to steam rice and other grains. After the Eastern Han Dynasty (AD 25-AD 220), further improvements to the Bronze Yan led to the modern-day steamer.

1.When did the “Ran LU” become popular?

A. In the Zhou Dynasty.

B. In the Warring States Period.

C. In the Eastern Han dynasty.

D. In the Stone Age.

2.The Bronze You, unearthed in Jiangxi province, has an opening to ________.

A. store wineB. pour water

C. place charcoalsD. hold charcoal ashes

3.What is the unique advantage of the Bronze Yan?

A. It is warm.

B. It is convenient.

C. It is environment-friendly.

D. It is useful.

4.Among the following products, which one may have the longest history?

A. The “Wen Ding”.B. The “Ren LU”.

C. The Bronze You.D. The Bronze Yan.

It has always been thought that alcohol causes people to put on weight because it contains a lot of sugar, but new research suggests a glass a day could form part of a diet. Looking at past studies they found that, while heavy drinkers do put on weight; those who drink in moderation can actually lose weight.

A spokesman for the research team at Navarro University in Spain says, “Light to moderate alcohol intake, especially of wine, may be more likely to protect against, rather than promote, weight gain.” The International Scientific Forum on Alcohol research reviewed the findings and agreed with most of the conclusions, particularly that data do not clearly indicate if moderate drinking increases weight.

Boston University’s Dr. Harvey Finkel found that the biologic mechanisms(生物学机制) relating alcohol to changes in body weight are not properly understood. His team pointed out the strong protective effects of moderate drinking on the risk of getting conditions like diabetes(糖尿病), which relate to increasing obesity. Some studies suggest that even very obese people may be at lower risk of diabetes if they are moderate drinkers.

The group says alcohol provides calories that are quickly absorbed into the body and are not stored in fat, and that this process could explain the differences in its effects from those of other foods. They agree that future research should be directed towards assessing the roles of different types of alcoholic drinks, taking into consideration drinking patterns and including the past tendency of participants to gain weight.

For now there is little evidence that consuming small to moderate amounts of alcohol on a regular basis increases one’s risk of becoming obese. What’s more, a study three years ago suggested that resveratrol, a compound present in grapes and red wine destroys fat cells.

1.The passage is mainly for those ________.

A. who produce wineB. who have a drinking habit

C. who go on a dietD. who are eager to lose weight

2.How does the writer clarify his view at the very beginning?

A. By quotation.B. By comparison.

C. By question.D. By statement.

3.What can we learn from the passage?

A. Current data clearly show that moderate drinking increases weight.

B. Resveratrol is proved to increase the risk of becoming fat.

C. The research found moderate drinking has a strong protective effect.

D .The specific roles of different types of alcoholic drinks are very clear.

4.What is most likely to be discussed in the paragraph that follows?

A. How to do some easy experiments.

B. How to reduce the calories contained in wine.

C. How to prove the finding mentioned above.

D. How to make wine in a healthy way.

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