— How do trees help us? — ___ A. They're useful. B. They keep air clean. C. They're important. 相关知识点: 试题来源: 解析 [答案] B [分析]句意:—— 树怎样帮我们? ——___ A它们很有用。B它们保持空气清新。C它们很重要。根据生活常识可知,树能让空气清新,故选B。反馈 收藏 ...
D. In winter, trees live on the food they store in summer.5. What does the text mainly tell us? A. How plants grow well. B. How many kinds of plants are on the earth. C. Why leaves change their colors. D. What we can do with leaves. 相关知识点: 试题来源: 解析 1. C ...
解析 B 树木如何帮助我们?它们可以冷却空气。考查特殊疑问句.问句 How do trees help us?意思为:树木如何帮助我们?答语回答的是树木帮助我们做的具体事情。A选项意思为:它们可以让空气浑浊。B选项意思为:它们可以冷却空气。C选项意思为:它们不能帮助我们。可知,B符合题意。故选:B。
maple leaves change the color as other trees . not all the colors of the leaves are from chlorophyll 相关知识点: 试题来源: 解析 【小题1】B【小题2】C【小题3】A【小题4】B【小题5】D短文大意:叶子是世界食品厂。植物通过自己的根吸收地上的水和空气中的CO2。植物利用阳光将水和CO2转化...
D. Trees begin to stop making food in summer.(5)This passage tells us ( ).A. the plants can grow well only with the sunlightB. there are all kinds of plants on the earthC. not all the colors of the leaves are from chlorophyllD. maple leaves change the color as other trees...
begin to stop making food in summer.【小题5】This passage tells us___.A.the plants can grow well only with the sunlightB.there are all kinds of plants on the earthC.not all the colors of the leaves are from chlorophyllD.maple leaves change the color as other trees 相关知识点: 语篇...
D. maple leaves change the color as other trees 试题答案 在线课程 1.C 2.A 3.C 4.D 5.C 【解析】 1.考查细节推断题。由短文第二段第三行...turn water and CO2 into glucose.把水和二氧化碳变成葡萄糖,可知答案是C. 2.词义推测题。由短文第三段第一行... gives plants their green colour给...
五How do pigments are under the chlorophyll. They树叶如何变红Golden and red leaves are always the.show up in autumn.things in autumn. But because of warming The red color helps the trees beat the weather, a warmer autumn makes the leaves change color later. Today, red leaves in some maki...
Somehow, the trees just know. Early October is a time for change. "It's really kind of simple," Val Cervenka with the DNR said. "There's a signal and the trees signal is the days are getting shorter, that is key." You see, leaves get their green color from chlorophyll. Its green...
How do trees contribute to climate change? A. By absorbing oxygen and releasing carbon dioxide. B. By absorbing carbon dioxide and releasing oxygen. C. By increasing greenhouse gases. D. By reducing soil E. rosion. 相关知识点: 试题来源: ...