2017-2018外研版必修2M2Period3Grammar课件（24张）-302edu教育资源网

2017-2018外研版必修2M2Period3Grammar课件（24张）

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He’s saving up to buy a new car.

He uses a computer to send emails.

2)有时候在不定式前面加上in order to 或 so as to, 否定式为 in order not to 和so as not to:

Let’s hurry so as to go to school in time.

Let’s hurry so as not to be late for school.

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