题目内容
If you are a do-it-yourself type of person,then learning how to build a greenhouse will provide you with a lot of satisfaction. You might want to build a greenhouse in order to protect your plants during the time the weather is extremely cold,or you may simply want to get an early start for the spring. 1
The first thing you need to do is check your local laws. Do you need to get a building permit? Do you have to have your greenhouse plans first approved before you start building? 2
Once you decide to build your greenhouse,you will need to determine what materials to purchase. Usually the greenhouse covering is constructed from polycarbonate(聚碳酸酯) ，glass,plastic,or fiberglass. 3 The frame will usually be made from wood or plastic piping.
Usually a larger greenhouse is called a hothouse or glasshouse. A smaller unit is referred to as a cold frame. 4 At the same time,you have to consider the budget you have available for materials,tools,and so forth.
Whatever you do,it is wise to have some kind ：of understanding of how to build a greenhouse before you begin. 5 You can also check out a how-to book from your local library or bookstore. However,if you are not certain about how to do it,then you might want to buy a greenhouse kit(成套工具) .Inside the kit you will find all of the parts you need and the directions on how to fix them together.
A. Use recycled materials.
B. Greenhouse plans can be found online easily.
C. A greenhouse project is very different from normal gardening.
D. These materials allow the sunlight to shine through.your greenhouse.
E. Be aware of all of these requirements,or you may experience a sad ending.
F. You should build your greenhouse based on the amount of space you have available.
G. Whatever reasons you have,knowing the basic steps of building a greenhouse counts.
(周围的环境)
本文是说明文。文章介绍了搭建温室的步骤。
1. G。本空前说的是掊建温室的“原 因”，下文内容说的是搭建温室的 “步骤”,故选G项。
2. E。根据本段中的laWs,permit,approved可知，要先“了解搭建温 查的相关规定，否则你可能会遭遇 不好的结局”。
3. D. 根据未段开头的determine what materials to purchase 及随后列举的材料可知D项符合本段语 境。
4. F。根据本段中的larger,smaller可知，“温室的大小基于你可利用的 空间”。
5. B. 根据本空前的some kind of understanding of how to build a greenhouse及下文建议查阅书籍可知，本段开头部分讨论的是如何寻 找搭建温室的方法，而“上网”寻找 为方法之一。
