must not 和need not这个短语有什么区别?下面让我们详细看一下：
must not表示禁止，是说话人强有力的劝告或命令，意为“一定要，不准。因此，在回答由must引导的问题时，如果是否定的回答，表示“不必，没有必要，不能用mustn’t，而要用needn’t或don’t have to.试比较：
You must not drive fast.你不能开快车。(路险或有速度限制)
You needn’t drive fast.(时间充裕)
You must not tell others.(警告)
You needn’t tell others.(没有必要)
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人教版英语八下Unit 9《Have you ever been to a museum》课件9
人教版英语八下Unit 9《Have you ever been to a museum》课件7
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a 2a课本听力素材（mp3）
2014人教新目标英语八下unit 1《What’s the matter》section a 1a-1c课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a1课件
人教版英语八下Unit 9《Have you ever been to a museum》（Section A 1b）课文朗读
人教版英语八下Unit 9《Have you ever been to a museum》（Section A 3a）课文朗读
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a 2d课本听力素材（mp3）
2014人教新目标英语八下unit 1《What’s the matter》section a 2d课本听力素材（mp3）
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a 1a-2d课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》period 3课件
2014人教新目标英语八下unit 1《What’s the matter》period 3课件
2014人教新目标英语八下unit 1《What’s the matter》section b 2b课本听力素材（mp3）
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a 3a-4c（含grammar focus）课件
人教版英语八下Unit 9《Have you ever been to a museum》（Section B 1c）课文朗读
2014人教新目标英语八下unit 1《What’s the matter》section a 1b课本听力素材（mp3）
2014人教新目标英语八下unit 10《I’ve had this bike for three years》period 2课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》课件4
2014人教新目标英语八下unit 10《I’ve had this bike for three years》period 4课件
人教版英语八下Unit 9《Have you ever been to a museum》（Section B）课件
2014人教新目标英语八下unit 1《What’s the matter》section a 1a-2d课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》period 1课件
人教版英语八下Unit 9《Have you ever been to a museum》（Section B 2b）课文朗读
2014人教新目标英语八下unit 1《What’s the matter》section a 2a课本听力素材（mp3）
2014人教新目标英语八下unit 1《What’s the matter》section a 3a-4c（含grammar focus）课件
2014人教新目标英语八下unit 1《What’s the matter》section b 1a-2e课件
2014人教新目标英语八下unit 1《What’s the matter》words单词听力朗读素材（mp3）
人教版英语八下Unit 9《Have you ever been to a museum》课件8
人教版英语八下Unit 9《Have you ever been to a museum》课件包1
人教版英语八下Unit 9《Have you ever been to a museum》（Section A-2）课件