The chair cost me thirty yuan. 这把椅子花了我30元。
2）spend的主语经常是人，用来表示花钱买东西常用的句型有：
人+spend+时间/金钱+on sth. 或人+spend+时间/金钱+(in)doing sth. 如：
I spent 5 yuan on the book. 我买这本书花了5元钱。
The little boy spent 10 minutes drawing a dog. 小男孩花了l0分钟画了一条狗。
3) pay意为“支付，花费”，主语只能是人，且只用于花费金钱，结构为：人+ pay + sb. + some money + for sth. 意为“为……付给某人多少钱” 如：
I paid him 5 yuan for the book. 我买那本书花了5元钱。
4) take也用于“花费时间和金钱”，常用于结构
It takes sb. + time/ money + to do sth. 如：
It took me three hours to finish the work. 我花了三个小时完成那项工作。
3.make sure/ be sure
make sure意为“务必”，“一定要弄清”；be sure意为“确信”，“一定”，二者均可接of短语，不定式或that从句。但be sure of与be sure to不同，前者接名词或动名词，表示主语对某事“确信，有把握”。如：
I’m sure of finishing the work. 我有把握完成这项工作。
be sure to do sth. 表示说话者对某事的看法。如：
She is sure to win the match. （说话人相信）她一定能赢这场比赛。
而make sure of 与make sure to do意思基本一样。
疑难解析
1. It’s written by Bill Gates. 它是比尔·盖茨写的。
（1）These planes are made by the students. It’s very good.
（2）Desks are made by workers.
2. It seems to be an interesting book. 似乎是一本很有趣的书。
seem在此表示“看上去”，暗示有一定依据，这种判断往往接近事实。而look着重于由视觉得出的印象，在搭配上两者都可接形容词、名词（前面常有形容词修饰）、动词不定式to be、介词短语。如：
He looks／seems a nice man．他看上去是个好人。
You look/seem tired. Let's have a rest. 看来你很累了，我们休息一会吧。
The boy looked/seemed to be very ill. 那个男孩看上去病得很重。
但以下几种情况，只能用seem，不能用look：
l）后面接动词不定式to do时。The new teacher seemed to know all his students．新来的老师好象认识他所有的学生。
2）用于It seems the that…结构时。It seemed that he lost something．看来他丢了什么东西。
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3）用于There seemed +不定式结构时。There seemed to be hundreds of people on the playground. 运动场上好象有好几百人。
3.It tells us how computer technology can solve business problems in new ways. (L89)
这是一个以how引导的宾语从句，宾语从句的语序要用陈述句语序，不能用疑问句语序。如：
Could you tell me how I can get to the station? 您能告诉我怎样到达车站吗？
4.Gates was named William Henry after his father and grandfather. (L90)
name…after…意为“按照……的名字来命名”，这是英国人常用的说法，美国常用name…for.如：
He is named for his uncle. 他被按照他叔父的名字命名。
5.It was one of the best-sellers of the New York Times list. (L90)
best—seller意为“畅销品”，在这里的意思是指“畅销书”。
New York Times 是专有名词《纽约时报》。
《纽约时报》是美国有声望的报纸，该报重视国内、国际重要事件的新闻报道，现在该报纸作为美国图书馆的主要参考资料，外交官、学者和政府官员的权威读物。
6.He and some of his friends spent lots of time doing unusual things with it. (L90)
spend 在表示“花费”时，可以表示花费时间、金钱等。它可用于两个不同的句式中：
（1）spend…on… 在……上花费
Each student spends 100 yuan on food every month. 在伙食上每个学生每个月花一百元。
Bill spent ￡3,000 on a new car. 比尔花了三千英镑买了一辆新车。
（2）spend…in doing sth… 花费……做某事，其中的介词in 可以省略。
She didn’t spend all her time (in ) doing the work. 她没有把全部时间用在工作上。
7.In the end, they worked out a software programme with the old machine.最后,他们利用这台老式计算机编出了一个软件程序.
in the end 是固定短语,意思是“最后；终于”,相当于at last. 注意：at the end of 意思是“在……末”,of 后必须跟名词或代词。如：
In the end, They won the relay race. 最后,他们赢得了接力赛.
At the end of last month, we finished the work..我们在月底完成了这项工作.
句中的worked out a software programme意思是“编出了一个软件程序”。Work out的意思 是“制订出、编制出、想出”。如：
We want to work out a new plan.我们想要制订一个新的计划。
8. They improved the software to make it easier for people to use computers. 他们改进了该软件，使人们能更容易地运用计算机。
句中make的句型是：make it+形容词（+for sb）+ to do sth. 的结构。句中的it就是替代后面的不定式做make的宾语，该形容词既可以用原形，也可以用比较级。如：
How can we make the classroom clean? 我们怎样才能使教室干净呢？
We want to make our country more beautiful.我们要使我们的国家变得更加美丽。
Lesson 89教学设计方案
Teaching Objectives:
1. Grasp the new words and expressions as well as the main idea of the dialogue.
2. Grasp the expressions of Certainty or Uncertainty
Language focus:
1. Passive voice: be done
2. new words and useful expressions: be back, must be. . . , solve, in many ways, have a look, one of. . . .best-seller, It seems. . . ,take. . .to. . . ,be interested in. . . , I’m sure. . .
Properties: Tape-recorder, Overhead projector
Teaching procedures:
Step 1 Revision
1. Check the writing tasks: a report about the sports meeting.
2. Revise the comparison of adjectives and adverbs.
Step 2 Leading-in
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There are some famous people in the world, or in a country, or in a city, or only in a school. These people are known by most of us and we talk about them very often. There also have famous people in different fields, eg. famous singers, famous politicians, or maybe they are famous for a book, etc. (write “be famous for” on the blackboard) Who is a famous person that you like? Why?
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