选词填空。根据短文内容，用方框中所给的单词填空。Both, inside, could, experiment, grown

题文

选词填空。根据短文内容，用方框中所给的单词填空。Both, inside, could, experiment, grown    What is the greenhou(温室)effect? Have you ever been inside agreenhou, the allglass building where plants are     1    ?It's very warm, becau the glass walls allow the sun's rays(光线)in but keep the heat from getting out.    Think of the earth as being    2    a large green-hou. The gas act like a greenhou's glass walls-they keep the heat from getting out into space,and the earth stays warm.    Try,this easy     3    :Take two jars (大口瓶) and put a teaspoon of water in each jar. Put a lid (盖子) on just one jar. Place __4   jars in a aunny place. After a few hours,check on the jars. You'll e that the open jar hasn't changed,but the clod jar will be hot inside. What happened? The heat from the sun     5     not get out from the clod jar.

题型：未知 难度：其他题型

答案

1. grown   2. inside   3. experiment   4. both   5. could

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