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关于本文格式说法正确的是（）。
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根据第三段内容下列说法错误的一项是()。
根据短文回答 36～40 题。
New Foods and the New World
In the last 500 years, nothing about people -- not their clothes, ideas, or languages! Has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree (可可树) by South American Indians. The Spanish introduced it to the rest of the world during the 1500's. And although it was very expensive, it quickly became fashionable. In London, shops where chocolate drinks were served became important meeting places. Some still exist today,
The potato is also from the New World. Around 1600, the Spanish brought it from Peru to Europe, where it soon was widely grown. Ireland became so dependent on it that thousands of Irish people starved when the crop failed during the "Potato Famine (饥荒)" of 1845 -- 1846, and thousands more were forced to leave their homeland and move to America.
There are many other foods that have traveled from South America to the Old world. But some others went in the opposite direction. Brazil is now the world's largest grower of coffee, and coffee is an important crop in Colombia and other South American countries. w But it is native to Ethiopia, a country in Africa. It was first made into a drink by Arabs during the 1400's.
According to an Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee bush. He tried one and experienced the "wide-awake" feeling that one-third of the world's population now starts the day with.
第 36 题 According to the passage, which of the following has changed the most in the last？
500 years？（）
根据短文回答 51～65 题。
Making the Leap
Jumps play a big role in many styles of dancing.Generally, what makes a jump impressive is its hang time,the amount of time a dancer spends in the air.
The quest for greater hang time is a battle against gravity, the constant
____________(51)pull of Earth,said Laws.To leave the ground at all.a dancer has to use leg muscles to create an upward push that is greater than Earth's downward pull.But the final____________ (52)of any jump depends on just one thing：the upward speed of the body just as the dancer leaves the ground.
Strengthening muscles so they can push harder is one obvious____________ (53)to achieve higher jumps and increase hang time.But ballet dancers also use a simple trick to gain the illusion of staying in the air longer without actually doing S0.In a huge sideways jump called a grand jeté(小跳),a____________(54)ballet dancer seems to float for an impossible length of time.Of course,a dancer can't really hang in the air.The laws of physics decree that during any jump,a dancer's center of gravity must follow a parabola(抛物线).A parabola is the same____________ (55)path a ball takes when you throw it into the air.So how do dancers make it look like they're hanging in the air？
A dancer____________ (56)the illusion of floating in the air by lifting her legs and arms as she approaches the peak of the jump.The____________ (57) of her body
responds by sinking a bit.If her timing is just right,she'll seem to float sideways,instead of rising and fallin9.The effect is not only beautiful；it____________ (58)makes the jump seem bigger by" stretching out" the peak.
Of course,what goes up must come down.During a typical grand jete,a dancer's center of gravity raises 2 feel____________(59)the ground。Pulled by gravity from such a height,the dancer's body falls very fast—roughly 3.4 meters per second—by the time it reaches the floor.
As it falls,the body carries with it momentum(动量).Momentum is the weight of the body multiplied by its____________ (60).The bigger the body is and the faster it falls,the greater its momentum.
The only way a dancer can stop dropping through the air is by stopping the body's momentum,which requires an____________ (61)force—the ground.Landing can____________ (62)injuries.The dancer can ease the landing by bending her knees and letting her arms fall。but she also gets help from an unexpected source：the floor.Wooden dance floors are designed to____________(63)like shock absorbers.They can recoil(回缩)as much as an inch under extreme pressure.That little bit of give(弹性)makes a big____________(64).Landing on a wooden floor, the dancer undergoes a slower change in momentum than she would hitting a rigid floor.The give in the floor allows the decrease in momentum to happen more____________ (65) with less force and less chance of injury.
第 51 题
听力原文：M: Mary, would you go to the Children's Center with us this Sunday afternoon？
W: Well, I'd like to, but Mum asked me to see her nephew Tom at No. 1 People's Hospital.
M: It doesn't matter. What's wrong with Tom？ Does he have a bad cold or have a headache？
W: I was told that he hurt himself in the left left during the football game.
M: I'm sorry to hear that. How long has he been in the hospital？
W: Three days. He was sent to the hospital as soon as his leg was hurt.
Where is the boy going？
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