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题型:阅读还原 题类:真题 难易度:普通

四川省达州市2019年中考英语试卷

根据短文内容,从下面方框中选择适当的选项补全短文。

    Do you have a tail? Of course not, we know. But tails are like opinions, actually, everyone has them: fishes, birds, most reptiles, and even some of our closest relatives

    Since tails first evolved(进化) at least 500 million years ago. Geckos (壁虎)use them to store fat. birds use them to steer through the air, But for most mammals (哺乳动物).Yet, as you get closer to humans on the evolutionary tree, tails disappear, Gorillas(大猩猩)don' t have them, and neither do chimps(黑猩猩) or any other apes (类人猿) including us, of course, To understand why, take a look at how we walk.

    walking like this gives us a huge advantage because unlike four﹣legged animals. which have to pour energy into every step they take, two legs take advantage of gravity(重力),which does some of the work for us. You see, each time we take a step, gravity pulls us forward. The end result is that when we walk, we use around 25% less energy than walking on all fours, and this way of getting around also totally eliminate (淘汰) the need for a tail.

    It's said that you can still see a reminder of a time when our ancient ancestors had one. Just look at a human spine(脊椎).That's your tailbone. It's all that's the rest of our tail.

    Now, babies are born with what looks like a tail, but that's not what's really going on. Most often, these tails are actually a parasitic twin(寄生虫). These types of tails usually form as a birth defect(瑕疵).

    So the tail of humans has gone, it's the result of evolution millions of years Will humans be much taller, stronger or smarter in the future?

A. Nowadays, humans can walk completely upright.

B. And in these situations, doctors will advise to remove the tails with no harm to the babies

C. they serve one major purpose—balance.

D. You can see how the last few bones are partly fused(融合) together

举一反三
阅读短文,补全表格。

    Americans love sports--they love to play them, to watch them on television, and to talk about them. But this hobby sometimes has serious results-- at least to the players. For example, when people play tennis, sometimes they hurt their elbows(肘部) and in this way they develop "tennis elbow". Also it is easy to hurt a knee in a football game. These injuries happen while the player is having fun, but they still hurt.

    A few months ago Kathleen Simmons, who loves playing volleyball, hurt her knee in a volleyball game. Her doctor told her that she needed a very difficult operation(手术) or she might not be able to play again. She felt very sad and didn't know what to do.

    Then Simmons learned about "video operation". Simmons found a hospital that was using this new science and went to see the doctor there. The doctors told her the operation could help.

    For this operation, her doctor didn't have to open her knee. Instead he put a very small camera lens(镜头)inside her knee. The lens sent back pictures, which appeared on a television screen. As he worked, he could see the inside of her knee on the TV. With the help of the large pictures on the screen, the doctor knew exactly what to do when he was making the repairs.

    Simmons started walking five days after her operation. Now, six months after her operation, Simmons can do everything she did before her injury. She can play volleyball again."

Information Card

Americans' hobby

American love {#blank#}1{#/blank#}.

The problem

People may have {#blank#}2{#/blank#} when they play sports.

The sport

Simons is interested in {#blank#}3{#/blank#}.

The thing

The doctor put a very small {#blank#}4{#/blank#}inside Simmons' knee in order to repair her knee.

The time

{#blank#}5{#/blank#} after her operation, Simmons started walking.

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