Rain barrels can be found at most home improvement stores；some come ready­made and some require assembly (组装)．You can also make your own with ease using the guides or directions found on do­it­yourself sites such as tylertork.com and diyrainbarrels.com.

　　Mosquitoes may use your rain barrel as a breeding(繁殖)ground.To deter it，cover the top of your rain barrel with a screen and seal all other openings.If you plan to use your rain barrel for lawn and garden uses，it’s a good idea to include a tap at the bottom of the barrel for hose connection.

　　Rain barrels are a more environmentally­friendly way to maintain your lawn and gardens.They can potentially save you money on your water bill.An investment in rain barrels is a“drop in the bucket”compared to the money you can save with time，not to mention the part you’ll play in ensuring a clean water supply for future generations.

　　用桶接雨水用于日常生活(饮用除外)不但可以节约用水，节省开支，而且还有利于环保，不失为一举多得的好主意。

　　1．The author lists the figures in Para.1 in order to______.

　　A．advise us to think again before we start a garden

　　B．provide the reason for the necessity of rain barrels

　　C．show the importance of water to crops and gardens

　　D．show off his knowledge about farming and gardening

【2017届高三（人教版）英语复习全国通用活页作业1】相关文章：

★ 2017届高三（人教版）英语复习全国通用活页作业6

★ 2017届高三（人教版）英语复习全国通用活页作业38

★ 2017届高三（人教版）英语复习全国通用活页作业27

★ 2017届高三（人教版）英语复习全国通用活页作业14

★ 2017届高三（人教版）英语复习全国通用活页作业25

★ 2017届高三（人教版）英语复习全国通用活页作业30

★ 2017届高三（人教版）英语复习全国通用活页作业37

★ 2017届高三（人教版）英语复习全国通用活页作业34

★ 2017届高三（人教版）英语复习全国通用活页作业28

★ 2017届高三（人教版）英语复习全国通用活页作业15