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1. Turn off the tap when brushing teeth.当刷牙的时候关掉水龙头。 turn off the tap关掉水龙头 brush teeth刷牙 when brushing teeth(when是介词)=when you brush teeth(when是连词) 2. Take showers for less than 10 minutes.洗澡时间少于10分钟。 take showers洗澡-take a shower less than少于 less than 10 minutes少于10分钟 more than多于 more than 10 minutes多于10分钟 3. Use both sides of the paper.使用纸的两面。 both sides of......的两边,两面 both sides of the paper纸的两面 4. Recycle empty bottles.回收利用空瓶子。 empty空的,形容词 empty bottles空瓶子 5. Turn off the lights when they leave a room.当他们离开房间的时候,关掉电灯。 turn off the lights关掉电灯 leave a room离开房间 6. Take their own bags to the supermarket.带他们自己的袋子去超市。 take...to...把...带去... their own bags他们自己的袋子 Take your homework to your home.把你们的家庭作业带到你们家里去。 7. do a survey做一个调查 survey调查,可数名词 a survey一个调查 8. Here are the results of the survey.这是调查的结果。 the results of......的结果 the results of the survey调查的结果 9. The survey shows that students are doing a lot to help protect the environment,but there are still many more things they can do.调查显示学生做了很多来保护环境,但是仍然有其它很多事情他们可以做。 show表明,及物动词 do a lot=do many things做了很多 help protect the environment帮助保护环境 still仍然,副词 many more things其它很多事情 many more things they can do=many more things that they can do这是that引导的定语从句that they can do,修饰前面的things。things that they can do他们能够做的事情,many more things that they can do其它许多他们能够做的事情。 10. Pollution has become a serious problem all around the world.污染已经变成全世界最严重的一个问题。 a serious problem一个严重的问题 all around the world全世界 11. We should try our best to protect the environment.我们应该尽我们最大的努力来保护环境。 try one’s best to do...尽某人最大努力去做某事 try our best to...尽我们最大的努力去... protect the environment保护环境 try our best to protect the environment尽我们最大的努力来保护环境 12. We can plant more trees.我们可以种更多的树。 plant trees种树 plant more trees种更多的树 13. I think our town will look nicer with more trees around.我认为有更多的树环绕,我们的镇子将看上去更美。 nice美丽的,形容词-nicer(比较级) look nicer看上去更美 with more trees around(around是副词)有更多的树环绕=with more trees around it/our town(around是介词) 14. Trees reduce dust and help keep the