新概念英语第二册 Lesson 16

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如果他来的话， 告诉我一声。 In case he comes, let me know. 我将把我的字典给你， 如果你明天要还的话。 I shall give you my dictionary on condition that you return it tomorrow. 只要我的费用有人付， 我就去。 I will go, providing/provided (that) my expenses are paid. 他要是不来， 我们该怎么办？ Suppose/Supposing (that) he does not come, what shall we do?
pay attention to, care, take care of, look after
• • • • • • 请注意看黑板。 Please pay attention to the blackboard. 他就是折断颈骨，我也不在乎。 I don't care if he breaks his neck! 别担心花园，你度假的时候我会照顾它的。 Don't worry about the garden. I'll take care of / look after it while you are on holiday. • 我出去的时候请代我照看孩子。 • Please take care of / look after the children for me when i am out.
• If引导的真实条件从句中，从句往往为现在 时，主句中会用到一般将来时或者祈使句。 • 2. in case， on condition that， providing， provided (that)， supposing， suppose (that)等词汇意思 相近， 指“假如， 假使， 在……条件下”( 比if更为书面化)。
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如果他不在，我明天就打电话。 If he is out, i 'll call tomorrow. 如果明天下雨，我们就呆在家。 If it rains tomorrow, we'll stay at home. 如果你不快一点，会误了火车。 You'll miss the train if you don't hurry. 如果你不喜欢，就别吃了。 If you don't like the food, don't eat it. 如果他正在忙，别打搅他。 If he is busy, don't disturb him.
Lesson 16 A polite request
NCE
police
• 警察正在找他。他们还没有找到他。 • The police are looking for him. They have not found him. • 到处都是警察。 • There were police everywhere.
• as long as (=so long as) 表示充分必要 条件， 引导语气强烈的条件状语从句时， 意为“只要”。 • I will cooperate as long as I am notified on time. • 只要及时告诉我， 我就会合作。
• 另外，if从句还表示不可实现的条件或根本不可能存 在的条件，也就是一种虚拟的条件或假设。从句多 用一般过去时或过去完成时，表示对现在或过去的 一种假设。 • 如果我是你，我会邀请他参加聚会。 • If I were you，I would invite him to the party． • 我要是昨天知道的话，我定会告诉你。 • If i had know that yesterday,I would/could/should/might have told you .
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