题型:阅读判断 题类: 难易度:困难
外研版(三起)六年级上册 Module 10 Unit 2 Go straight on 同步练习
When we walk on the road in China, we must be careful. We must obey the traffic rules :
①Drive, ride or walk on the right side of the road.
②When the light is red, we must stop.
③When the light is yellow, we must wait.
④When the light is green, we can cross.
A.pollution B.into C.seldom D.more expensive E. higher |
Think about different ways that people use the wind. We can use it to fly a kite or to sail a boat. Windmills began to be used in seventeen century BC.At first, people used windmills to grind (磨碎) wheat {#blank#}1{#/blank#} flour and get water out of the deep underground.
When Benjamin Franking found electricity in the late 1800s, people began to use it in many different ways, like electric lights and radios. However, when electricity was everywhere by the 1940s, windmills were {#blank#}2{#/blank#} used. During the 1970s, people started worrying about the {#blank#}3{#/blank#} when coal and gas are burned to make electricity. People also realized that there were not enough coal and gas for us to use. Then people started to reuse windmills, though it means {#blank#}4{#/blank#} costs.
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