外研版 高二(
  6) 高二 Module 1
Grammar
山东 刘爱萍
Talk about obligation or lack of obligation. obligation: must do… have to do… 必须做… 不得不做… 必须做 不得不做 (客观上的需要 客观上的需要) 客观上的需要
lack of obligation: don’t have to do… don’t need to do… 没有必要做… 没有必要做 不必要做… 不必要做
Complete the sentences with verbs to express obligation or lack of obligation.
  1. Stop! You give yellow mustn’t, can’t flowers to the host! It’s unlucky!
  2. Don’t worry. You don’t have to, needn’t to eat anything you don’t like.

  3. I’m sorry. You can’t leave. You wait until the prizes must, have to have been given.
  4. I have to, need to Do take some food to the party?
  5. You take don’t have to, don’t need to a gift to the host, but she will be very pleased if you do.
didn’t need to do and needn’t have done
  1. didn’t need to do: 不需要做而且也没做
  2. needn’t have done: 本不需要做而做了
Complete the sentences using didn’t need to do or needn’t have done.
  1. We brought some food to the party but there was too much, so we needn’t have brought (bring) any.
  2. My friend spoke good Mandarin so I didn’t need to translate (translate) the speech for him.

  3. The office had already opened when we arrived so we didn’t need to wait (wait) outside in the street.
  4. I got to the party at 6 p.m., but there was no one there. So I needn’t have arrived (arrive) so early.

  5. I told the host all about my home town and then he told me he’d been there. I needn’t have told (tell) him anything.
Translate

  1. 天要下雨了 你没必要浇花。 天要下雨了, 你没必要浇花。 It was going to rain. You didn’t need to water the flowers.
  2. 昨天你本没必要去车站。 昨天你本没必要去车站。 You needn’t have gone to the station yesterday.

  3. 你无需告诉他这一消息 那只会使他 你无需告诉他这一消息, 悲伤 。 You didn’t need to tell him the news; it just made him sad.
  4. 如果我早知道火车站这么近 我就用 如果我早知道火车站这么近, 不着打出租车了。 不着打出租车了。 If I had known that the railway station was so near, I needn’t have taken a taxi.
 

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