The world's population英语教案

编辑:

2013-12-04

三、过去将来时的其他表示法

1.在时间或条件状语从句中,常用一般过去时表示在过去看将来要发生的动作。如:

They said that they were going to West Hill Farm if it didn’t rain the next Sunday. 他们说如果下星期天不下雨他们就去西山农场。

The teacher asked Tom what he was going to be when he grew up. 老师问汤姆长大后准备干什么。

2.go, come, leave, fly, drive, arrive, start等表示位置移动的动词常用过去进行时表示一个当时按计划或安排近期将要发生的动作。如:

She didn’t say when she was coming again next time. 她没说下一次什么时候会再来。

Jim decided they were flying to England next month. 吉姆决定他们下个月坐飞机去英国。

数词的表达法

1—20逐个熟记。

21~99:先说“几十”,再说“几”,中间加连字号。如:35—thirty-five  69—sixty-nine 。

101~999:先说“几百”,再加and,再加末尾两位数或一位数。如:

226—two hundred and twenty-six

518—five hundred and eighteen

905—nine hundred and five

4位和4位以上的数字:先从后向前数,每三位数空半个阿拉伯数字的位置,第一个空前为thousand(千),第二个空前为million(百万),第三个空前为billion(十亿,美式)或thousand million(英式),然后一节一节读出。(或每三位为一段,用逗号分开,第一个逗号前是thousand,第二个逗号前是million,第三个逗号前是billion。)如:

2 002—two thousand and two

6 000—six thousand

9 876—nine thousand,eight hundred and seventy-six

198 407—a(one)hundred and ninety-eight thousand,four hundred and seven

18 657 421—eighteen million,six hundred and fifty-seven thousand,four hundred and twenty-one

8 000 000 000—eight billion(美式)或eight thousand million(英式),如:

1 000 000 000 000—a(one)trillion(美式),a(one)billion(英式)

注意在上述这样数词中,hundred,thousand,million等词一般用单数形式。如:

ten thousand 一万

a hundred thousand 十万

a hundred million 一亿

a thousand million 十亿

a billion 十亿

注意:英语没有单独表示“万”和“亿”的单词。表示“一万”要用ten thousand,表示“一千万”要用ten million,表示“一亿”要用a hundred million。

教学建议三

过去将来时的教学建议

本单元的语法重点是过去将来时。过去将来时是表示对过去某一时间来说将要发生的动作或状况。通常用would或was/were going to+动词原形来表示。如:He said he would go to his hometown for the Spring Festival. 他说他将回家乡去过春节。

They told me that they would visit China the next week.他们告诉我他们下星期将访问中国。

She said that she was going to do some shopping the next day. 她说她第二天将去买东西。

过去将来时通常在以下几种情况下使用。

1.主句为过去时,在宾语从句中表示将来的事情用过去将来时。如第51课中第3部分

Make sentences中的句子:

I didn’t know that they would be able to buy another car.

My uncle never knew that a car would cost more than a house.

意思是:“我当时不知道他们会买另一辆新车。” “我叔叔当时不知道一辆汽车会比一幢房子贵。”

2.在叙述过去的事情时,在当时看来将要发生的事。如:

She was our new teacher and she would be 30 years old that year. We all liked her very much and we were going to have a party for her birthday. 她那时是我们的新老师。她那一年就到30岁了。我们非常喜欢她,打算为她举办一次生日聚会。

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