那位老人为了买种子身负重债。
*make sense: have an understandable meaning有意义；有道理；讲得通；
be sensible是明智的；是合情合理的。
What you say makes no sense.
你说的话没有道理。
It doesn’t make sense to buy that expensive coat when these cheaper ones are just as good.
这件便宜的大衣也很好，何必也买那件贵的。
*earn one’s living: get money by working谋生； 挣钱生活
I start to earn my own living this very afternoon.
从今天下午开始，我自己挣钱养活自己了。
*for one thing: (used to introduce a reason for sth.用以引出谋事的理由 )一来
I’m afraid that I won’t be able to spend the weekend with you in Dalian. For one thing, I have no money and another I’m too busy.
恐怕我不能和你一起去大连度周末了，一来我没有钱，二来我太忙。
以上单词和词组可通过听对话录音，教师介绍过程中呈现，然后用问答讨论课文内容等方式再现以上单词和词组加深理解词义，掌握用法，紧后用句型转换或补全名子等方法巩固，开发运用。
B)本单元应掌握的重点文法知识：名词性从句
名词从句包括主语、表语、宾语和同位语从句。从总体上要注意两点：
连接主句与从句的连词有副词why, how, where, when, whether, if,它们在从句中充当状语成份，个有不同的词意，因此不能省略。代词who, whom, whose, what, which, 它们在从句中充当主语、定语、宾语，个有不同的词意，因此也不能省略。在联系中取舍哪一个词，本着缺什么成份，把它补齐，使句子在结构上与含意上完整就可以了。不同的连词，名子的意思也不同。例如：
Why/How/Where/When/Whether/Of what material the new house will be built hasn’t been decided yet.
为什么/怎样/在什么地方/什么时候/是否/用什么材料建这座房子还没有定下来。
二、学海导航
【学法指要】
本单元语法难点：
1.掌握that在名词性从句中的用法。that在宾语从句中，不充当成份，也无词意，因此它可以省去；在主语、表语和同位语从句中，that虽然不充当成份，也无词意，但不能省略。
Today’s newspaper reports(that) sales of beef in China will increase.（宾语从句）
今天的报纸报道说，中国的牛肉销售量将会增加。
That land ownership in some countries is unfair is obvious.（主语从句）
在一些国家里，土地所有制的不公平是显而易见的。
The reason is that is has been raining for five days.（表语从句）
原因是已经下了五天的雨。
The reason that it has been raining for five days is why the crops has been flooded.
连续下了五天的雨，所以庄稼都泡在水里了。（同位语从句）
2.注意宾语从句中主句与从句谓语动词时态的呼应。
宾语从句中主句与从句谓语动词时态的呼应有三种情况：
A)主语谓语动词用现在和将来时态时，从句谓语动词可用任何所需要的时态。
Tom says that his sister is(was, will be) a doctor.
B)主句谓语动词用过去时态时，从句谓语动词则根据语境用过去时间的各种时态。这规律意也适用于主语、表语和同位语从句。
He thought the boy was honest.
I told him his brother was coming(would come).
We didn’t know whether they had finished their work.
注意：当从句说的内容是一般真理或客观事实时，从句谓语动词仍用一般现在时。
The mother told her little daughter that the earth goes round the sum.
He told me that the train for Beijing leaves at 10:30.
Somebody told me that you are a teacher.
3.否定转移
当主句的动词是think, believe, suppose, expect时，从句的否定要前移。