题型:阅读选择 题类:模拟题 难易度:普通
2019初中英语中考复习专题训练卷(七)阅读理解(三)说明议论类
The idea of being able to walk on water has long interested humans greatly. Sadly, biological facts prevent us ever accomplishing such a thing without artificial aid-we simply weigh too much, and all our mass pushes down through our relatively small feet, resulting in a lot of pressure that makes us sink.
However, several types of animals can walk on water. One of the most interesting is the common basilisk Basilicus basilicus, a lizard(蜥蜴) native to Central and South America. It can run across water for a distance of several meters, avoiding getting wet by rapidly hitting the water's surface with its feet. The lizard will take as many as 20 steps per second to keep moving forward. For humans to do this, we'd need huge feet that we could bring up to our ears in order to create adequate "hitting."
But fortunately there is an alternative: cornflour. By adding enough of this common thickening agent to water (and it does take a tot), you can create a "non-Newtonian" liquid that doesn't behave like normal water. Now, if the surface of the water is hit hard enough, particles(粒子) in the water group together for a moment to make the surface hard. Move quickly enough and put enough force into each step, and you really can walk across the surface of an adequately thick liquid of cornflour.
Fun though all this may sound, it's still rather messy and better read about in theory than carried out in practice. If you must do it, then keep the water wings handy in case you start to sink and take a shower afterward!
People want a happy family. {#blank#}1{#/blank#} Here are some good ways for you.
Talk to family.
Talking is the key to a happy family. It helps family to show what they are thinking. {#blank#}2{#/blank#}
Spend time together.
There are many ways to spend time with our family, like making dinner, watching TV, going for a walk or cleaning the house.
{#blank#}3{#/blank#}
Say" thank you" when family help you. And let them know that you thank them for what they do for you. Also you can buy some small gifts(礼物) for them. A cool hat or a good book may be a good choice. They can be very happy.
Say sorry.
{#blank#}4{#/blank#}A good breakfast for your family can show you are sorry too.
A. Show thanks. B. Do you know why? C. But what can we do? D. When you do something wrong(错误的), you should say sorry. E. If we often talk to our family, we can know much about them. |
What other ways can help you to make a happy family? Please list one. {#blank#}5{#/blank#}
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