单元检测（三十三） Interpersonal Relationships - Friendship

　　Ⅰ.语法填空

　　In some parts of the United States, farming is fairly easy, __1__ farming has always been extremely difficult in the northeastern corner of the country, __2__ is called New England.

　　New England has many trees and much thin, rocky soil. __3__ (start) a new farm there, one has to work very hard. The first job is cutting down trees. The next job is digging the stumps (树桩) of the trees out of soil. Then the farmer has great __4__ (difficult) removing stones from his land.

　　This work of removing stones never really __5__ (end) because every winter more stones appear. They come up through the thin soil __6__ the rocks below.As a matter of fact, farmers have to remove stones from the fields all the time. Even today, farms which have been worked about 200 years keep __7__ (produce) more stones. That is why stone walls __8__ (use) instead of fences in New England fields. The stone walls are not high and a man can __9__ (easy) climb over them. However, they keep the cows from joining __10__ of their neighbors.

　　语篇解读：本文是一篇说明文。文章介绍了在美国新英格兰地区种田的种种艰辛。

　　1．but　前后句之间意义上存在转折关系，用but连接。

　　2．which　关系代词which指代先行词"the northeastern corner of the country"，引导非限制性定语从句，并在从句中作主语。

　　3．To start　"To start a new farm there"是动词不定式短语作目的状语。

　　4．difficulty　空格中所填单词在句中作宾语，需用difficult的名词形式。

　　5．ends　主语"This work"是不可数名词，谓语动词用单数；这里说的是经常性情况，用一般现在时。

　　6．from　地里的石头来自下面的岩石，故用介词from。

　　7．producing　keep doing sth.是习惯搭配，意思是"一直做某事"。

　　8．are used　主语walls是被利用的，需用被动语态；这里说的是经常性情况，用一般现在时。

　　9．easily　空格中所填单词在句中修饰谓语动词，需用easy的副词形式。

　　10．those　为了避免重复，常用that或those替代前面出现过的名词，这里用those替代前面出现的"the cows"。

　　Ⅱ.短文改错

Never go into a supermarket hunger! This is a good advice. If you went shopping for food before lunchtime, you will probably buy more than you plan to. Unfortunate, just this advice isn't enough for consumers. Modern shopper need an education about how to buy things at the store. First, you can check the weekly newspaper ads. Find out the items what are on sale and decide if