您正在看的高中三年级是:Office equipment。

　　【知识点】

　　1，单词和词组

　　answering machine留言机

　　recorder留言机

　　tape recorder磁带留言机

　　Progress(vt.)进行

　　2，日常用语

　　Phone calls and messages

　　Hello. Is--in/there? Hello, this is--(speaking).

　　May/Could I speak to --? I'm sorry, she/he isn't here right now.

　　Hello, is that--? Hold on, please.

　　Hello, Who is that/it? Can I take a message (for you)?

　　Could you give her/him a message?

　　I called to ask/tell you/say that--

　　3，语法

　　复习和归纳句子的成分--表语;复习动词不定式，动词-ing形式和过去分词作表语的用法。

　　【知识讲解】

　　1，Once you have done this, you will quickly become a useful member of the team. 一旦你学会使用了，你就会很快地成为工作班子里有用的一员。

　　Once you have done this… 是承接上文来的，意思相当于：Once you have learned how to use every piece of equipment….

　　once 是从属连词，作"一(旦)……就……"(from the moment that)解，连接一个表示时间的状语从句。例如：

　　Once you show any fear, the dog will attack you.

　　你一显出害怕的样子，狗就会来咬你。

　　Once he said that, I know he was lying. 他一说那件事，我就知道他在撒谎。

　　She wouldn't change her mind once she made the decision.

　　她一旦作出决定就不会改变的。

　　once 还可以作副词，作"一次"(one time)或"曾经一度"(some time ago)解。例如：

　　I have been there once. 我到过那儿一次。

　　We go home once a week. 我们每周回家一次。

　　He once knew her, but they are no longer friends.

　　他曾经认识她，但是他们现在不再是朋友了。

　　Her father once worked in a car factory in Harbin.

　　她父亲在哈尔滨一家汽车厂工作过。

　　2，It is better to ask for help at the beginning rather than to wait until a busy period when everyone is rushed off their feet. 最好在开始工作时就去请求帮助，而不要等到大家都忙得不可开交时再去找人帮忙。

　　1)rather than 而不是，与其……宁愿。这是一个连词词组，用来连接两个并列的成分(如本句中连接两个作主语的不定式短语 to ask for…和 to wait…)，表示在两者中进行选择，意即"是A而不是B"，"要A而不要B"，"宁愿A而不愿B"等。例如：

　　John must go rather than Jack.

　　必须去的是约翰而不是杰克。(连接两个名词 John 和Jack)

　　These shoes are comfortable rather than pretty.

　　这些鞋子穿起来很舒服，但并不漂亮。(连接两个表语形容词 comfortable和 pretty)

　　He'd prefer to come in August rather than in July.

　　他愿八月来，而不愿七月来。(连接两个表示时间的介词短语 in August和 in July)

　　I love swimming rather than skating.

　　我喜欢游泳，而不喜欢溜冰。(连接两个 -ing 形式 swimming 和 skating)

　　I decide to write rather than (to) telephone.

　　我决定写信而不打电话。(连接两个不定式 to write 和 to telephone)

　　注意：当连接两个不定式时，rather than 后面的这个不定式可以带 to，也可以不带 to，还可以用 -ing 形式。例如：

　　It's better to reply immediately rather than (to) wait till the weekend. (或rather than waiting till the weekend) 最好是立即回答，而不要等到周末。

　　We ought to check up, rather than just accept what he says. (或…accepting what he says) 我们应该核实一下，而不是他说什么就信什么。

　　2)rush sb.off his feet 意思是"使忙得个不亦乐乎"，"使忙得不可开交"，常以被动形式出现(sb is rushed off his feet.)，用于非正式文体。例如：

　　We were so busy in the office today. I was rushed off my feet.

　　今天我们办公室里真忙。我是忙得不可开交。

　　They're rushed off their feet with the sowing. 他们播种忙得个不亦乐乎。

　　3， What is more, this"information line"operates 24 hours a day. 再说，这条"问讯线路"是一天24小时工作的。

　　"What is more"是一种固定表达，作"再说"、"而且"、"更有甚者"解，在句中作插入语，表不除了上文所说的情况外还有进一步的情况。例如：

　　He came home after midnight, and what's more, he was drunk.

　　他后半夜才回家，而且醉醺醺的。

　　----Why didn't you go and see Mr Johnson? 你为什么没去看看约翰逊先生呢?

　　----Because it was raining hard that day. And what's more, I didn't have his address with me. 　因为那天下大雨，再说，我身边又没有他的地址。

　　4，It was important to carry out the work quickly, so an extra team of men were asked to work on the repairs one evening. 加快完成这项工作很重要。因此，有一天晚上要求多派了一队人来搞维修工作。

　　work on 是短语动词，作"从事(某工作)"、"致力于"解，可以有多种译法。这个短语动词中的on是介词，后跟名词、代词或 - ing 形式。例如：

　　They are working on a report of the eXPeriment. 他们在写一份实验报告。

　　We worked on this day and night. 我们日日夜夜都在从事这项工作。

　　He is still working on inventing a new type of machine for office work. 他仍在致力于发明一种办公用的新式机器。

　　Many people in China are working on a"Project Hope", helping poor children to go to school. 中国有许多人正在从事一项"希望工程"，帮助穷苦孩子上学。

　　work on 也可以作"继续工作"(work continuously)解，其中的 on是副词，表示"继续地"。如 walk on(继续走)， stay on(继续逗留)，talk on(继续谈话)等。例如：

　　I'll have to work on till the report is ready. It is needed for tomorrow's meeting. 我不得不继续工作，直到把报告写好为止。这篇报告明天会议上要用的。

　　5，There had been fuel on the ship,　but this did not appear to have caused the fire,　 and little smoke was produced. 船上有一些燃料，但看来并不是燃料引起火灾的，而且几乎没有产生烟。

　　1)There had been fuel…，谓语动词用了过去完成时态，这是因为上文的时态用了一般过去时的缘故。… they at once started to look for causes of the fire. They were puzzled by…。这说明在消防队员寻找