全球变暖ppt英文

global warming。

Global warming意为全球变暖。全球变暖是由于人们焚烧化石矿物以生成能量或砍伐森林并将其焚烧时产生的二氧化碳等多种温室气体释放。

例句：

1、Will global warming mean the spread of tropical parasitic diseases?

全球变暖将会意味着热带寄生虫病的传播吗？

2、Global warming is a real problem.

全球变暖是个确实存在的问题。

3、The threat of global warming will eventually force the U.S. to slow down its energy consumption.

全球变暖的威胁将最终迫使美国减慢其能源消耗。

In recent years our life isbecoming better and better. But our environment is becoming worse and worse.It’s very bad for our life. Now many people have air-conditioners and cars,they produce (give off ) waste gas. More and more trees are being cut down.There are so much sand on the earth (leaving only sand ) . We often seefactories pour waste into rivers or lakes. Water in the river is quite dirty.We haven’t enough clean water to drink in cities. Now we are in danger. It’svery necessary and important to protect the environment well. I think ifeveryone tries his best to protect the environment, the world will become muchmore beautiful , and our life will be better and better .

看作是整体，取一个抽象的意义，泛指的情况。