2022年下半年英语四级考试还有两个月就要来临，很多考生都会背一些英语作文或者万能公式，下面小编为大家预测一下今年的英语作文，供大家参考。
（空气污染）
Hotter or Colder
It was once thought that air pollution affected only the area immediately around large cities with factories and/or heavy automobile traffic.Today, we know that although these are the areas with the worst air pollution,the problem is literally worldwide.On several occasions over the past decade,a heavy cloud of air pollution has covered the entire eastern half of the United States and led to health warnings even in rural areas away from any major concentration of manufacturing and automobile traffic.
In fact, the climate of the entire earth may be affected by air pollution.Some scientists feel that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels (coal and oil) is creating a “greenhouse effect” —holding in heat reflected from the earth and raising the world’s average temperature.
If this view is correct and the world’s temperature is raised only a few degrees,much of the polar ice cap will melt and cities such as New York, Boston, Miami,and New Orleans will be under water.Another view, less widely held,is that increasing particulate matter in the atmosphere is blocking sunlight and lowering the earth’s temperature —a result that would be equally disastrous.A drop of just a few degrees could create something close to new ice age and would make agriculture difficult or impossible in many of our top farming areas.
At present we do not know for sure that either of these conditions will happen (though one recent government report prepared by experts in the field concluded that the greenhouse effect is very likely).Perhaps, if we are very lucky,the two tendencies will offset each other and the world’s temperature will stay about the same as it is now.
一、 while 引导的状语从句
Different people have different views on opportunity. Some people think that there are few opportunities in the world, while others argue that everybody will have some kind of opportunity along his life route.
二、Those who…句型
Those who are in favor of the Internet claim that it has a lot of advantages.
三、倒装句
Only when all of us join in the efforts of eliminating cheating at all levels can we expect to have a cleaner society and a more beautiful future.
四、条件状语从句
He will make the right choice if he knows his goal in life and how to make decisions according to the goal.
