9B U3 Grammar(正式).pptVIP

说 明 T: Can you tell the differences between ‘unless’ and ‘if…not’? S: T: Yes. We can use ‘unless’ to link two parts of a sentence. It has a similar meaning to ‘if…not’. It is used to say that something can only happen or be true in a particular situation. (我们可以用‘unless’连接句子的两个部分。它和‘if…not’同意。它被用来表述某事只能在某种特定情况下发生或成立。) T: Now, turn to Page 48. Let’s do exercises. Millie has made a tour guide. However, she tore the guide into pieces by accident. Help her put the guide together. Match the two parts of the sentences and write the correct letters. （请翻开书本第48页。请帮Millie把撕破的旅游指南粘好。匹配句子，填入正确的序号。） T: Let’s check your answers. 1. Unless you want to buy lots of souvenirs, we suggest you not taking a lot of money with you. d 2. There is no need to get up very early in the morning unless you want to watch the raising of the national flag. c 3. Unless you are in a hurry, you do not need to take a taxi. e 4. Take a map of Beijing with you while traveling unless you have a guide or know Beijing well. b 5. Unless the weather forecast says it is going to rain, you do not have to take an umbrella or a raincoat with you. f 6. Do not miss the traditional snacks in Beijing, unless you do not like Chinese food. a T: Now let’s work out the rule. In which parts can we use ‘unless’ to talk about exceptional conditions? S: T: Yes. We can use ‘unless’ at the beginning or in the middle of a sentence to talk about exceptional conditions. （我们可以在句首或句中使用‘unless’来讨论特殊的情况。） T: Look at Grammar C. How to use ‘so that’. Now let’s look at the pictures. Where is it? S: T: Good. It’s Tiananman Square. Many tourists gather here early in the morning so that they can watch the raising of the national flag. Look at another example. It was built with stones and bricks in ancient times so that the northern border of the country could be protected. T: What does ‘so that’ mean? S: T: Yes. We use ‘so that’ to talk about the purpose of do