◎ 题干
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 greenhouse(温室)effect? Have you ever been inside agreenhouse, the allglass building where plants are     1    ?It's very warm, because 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-house. The gases act like a greenhouse'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 see that the
open jar hasn't changed,but the closed jar will be hot inside. What happened? The heat from the sun     5     not get out from the closed jar.
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◎ 知识点
    根据n多题专家分析,试题“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, grownWhat is the greenhouse(温室)effect? Have you ever been inside agreenhouse,…”主要考查了你对  【科教类阅读】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。