Lesson 141 Global Warming

Have you noticed that it's getting warmer and warmer every year? To put it simply,that's beacuse of air pollution.Scientists tell us that because of air pollution,the earth's heat cannot eacape.This is known as global warming.If the situation is allowed to continue,it will just keep getting hotter and hotter.Then,can you imagine what will happen?We should all,therefore,do our part to stop polluting the air and help save the world

常用不定式短语
to tell (you) the truth （跟你）说实话
to be grank (with you) 坦白（跟你）说
（= grankly speaking）
to put it simply 简言之
to put it differently 换言之
=（in other words）
to sum up 总而言之
to do + 人 + justice 为某人说句公道话

can not could not 用法
can not 可简写为 cannot can't 不能用can not
could not 写为could not 或 couldn't 不能couldnot
can't couldn't用于口语，cannot could not用于文章

allow 的用法
allow + 人或事物 + to + 动词原形
He won't allow me to try again.他不会允许我再试一遍的
被动语态 be allowed to + 动词原形
I won't be allowed to try again.

allow + 动名词 (主动)
We don't allow to smoke here.(x)
We don't allow smoking here(√)

allow 与for of 连用
allow for 体谅 考虑
Before you ask him to do it,you should allow for his situation.
allow of 容有... 的余地（通常用于否定句中）
This article is perfect,It allows of no criticism.