2　 The expensive one usually means good quality.Choosing the cheapest ones will result in many problems.For once,it’s best to buy more expensive lights of high quality.　3　 At least you should know the difference between a $10 light and a $45 light. 

　　Buy lights that require less installation(安装).

　　Most solar lights are simply driven into the ground.Therefore,you shouldn’t deal with the difficulty in installing a system that involves anything more than that.　4　 You don’t need to buy lights that require half an hour each to plant into the ground because that’s just a waste of time. 

　　Make sure the lights can store enough energy.

　　Different solar lights can store different amounts of energy.　5　 Therefore,you should choose lights that are able to store enough energy to last for a few hours or more,at least those that will last from nightfall throughout most of the night and part of the morning. 

　　(2015·江西上饶模拟)

　　A.Without sunlight,solar lighting is useless.

　　B.Buy many solar lights instead of just one or two.

　　C.It means some will stay lit longer than the others.

　　D.Choose something a bit more expensive for once.

　　E.Solar lights are becoming more and more popular.

　　F.That doesn’t mean you have to spend all your money.

【2017届高考英语一轮复习知识梳理练习：选修7 Unit 19 Language（北师大版）】相关文章：

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ规范练：5（含解析）

★ 【北师大版】2014届高考英语一轮复习指导课时作业：Unit 9 A卷 Word版含解析

★ 天津市武清区杨村第四中学2016届高考英语一轮复习语法专题十二《图表类书面表达》课件外研版

★ 2014届高考英语一轮复习课时作业(三十九)选修7Module 3《Literature》（外研版）

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修4 Unit 1 Women of achievement

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ题型重组训练：第6组（含解析）

★ 四川省2016届高考英语一轮复习课时作业（21） Module 3 Body Language and Non verbal Communication 外研版必修4

★ 2014届高考英语一轮复习课时作业(三十)必修5Module 6《Animals in Danger》（外研版）

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (22)

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ题型重组训练：第17组（含解析）