新译林版九年级上册英语 Unit 6 课时4 Grammar教学课件

1、Unit 6 TV programmes Grammar学习目标To use if-clause to talk about the result of a possible action.To use unless to say that something can only happen or be true in a particular situation. 新课导入 自学自检:汉译英1.假如你喜欢破解谜团2.向我们介绍它3.处于危险之中4.群居生活 5.公狼6.有危险。（可能有危险）7.你随身携带一把伞8.交通很拥挤。9.除非你对此几乎没兴趣。enjoy solving myster

2、iesintroduce it to usbe in dangerlive as a familymale wolvesThere is danger.There may be danger.take an umbrella with youThe traffic is very heavy.Unless you have/show little interest in it.新课导入Presentation1. 如果你是个足球迷，你不会想要错过这周的节目。 If you are a football fan, you will not want to miss this weeks prog

3、ramme.新课导入2. 这种情况将会持续下去除非人们停止为了皮毛和骨头而猎杀老虎。 The situation will continue unless humans stop hunting tigers for their fur and bones.3. 如果你很容易被吓坏，别看了。 If you get scared easily, do not watch it.新课讲解We use if to talk about the result of a possible action. We make sentences with if like this:If-clause(simp

4、le present tense)Main clause(will/may/might/+infinitive)If you are a football fan,you will not want to miss this weeks programme.If you are an animal-lover,you may feel sad about it.新课讲解Pay attention:We put a comma after the if-clause when it is the first part of a sentence.If-clause(simple present

5、tense)Main clause(will/may/might/+ infinitive)If you enjoy solving mysteries,you might like this film.新课讲解What will happen if . ?Millie is thinking about herself, her friends and TV programmes. Complete the sentences with the correct forms of the verbs in brackets. 新课讲解 If I _ (go, will go) to the R

6、eading Club this afternoon, I _( do not have, may not have) any time to watch TV.2. If Simon_(gets, will get) home late, he _ (misses, will miss) his favourite cartoon.gomay not havegetswill miss新课讲解3. If Amy _(completes, will complete) all her homework quickly, she _ (watches, will watch) the chat

7、show.4. If Daniel _ (takes, will take) part in the game show, he _ (wins, might win) a prize.5. If Sandy _(finds, will find) a programme interesting, she _ (introduces, will introduce) it to pleteswill watchtakesmight winfindswill introduce新课讲解Work out the rule!We often use the simple _ (future, pre

8、sent) tense in the if-clause. We need a _ (comma, full stop) after the in-clause when it is the first part of a sentence. presentcomma新课讲解Asking about animalsMillie watched a documentary about animals. Help Millie answer her fathers questions with the help of the words in the box. 新课讲解Dad: What will

9、 a bear do if its in danger?Millie: If a bear (1)_, it (2) _ people.Dad: What will a polar bear do if its hungry?Millie: If a polar bear (3)_, it (4)_ fish from the water.attack catch hunt live protect walkis in dangerwill attackis hungrywill catchvt./vi. 攻击，进攻n. 北极熊新课讲解Dad: What will elephants do i

10、f theyre thirsty?Millie: If elephants (5)_, they (6)_ until they find a river.Dad: What will tigers do if they live in the wild?Millie: Tigers (7)_ for their own food if they(8) _.attack catch hunt live protect walkare thirstywill walkwill huntlive in the wild新课讲解Dad: What will tigers do if they hav

11、e babies?Millie: Tigers (9)_ as a family if they (10)_.Dad: What will male wolves do if theres danger?Millie: Male wolves (11)_ their families if there (12)_.attack catch hunt live protect walkwill livehave babieswill protectis dangeradj. 雄性的新课讲解Using unlessWe can use unless to say that something ca

12、n only happen or be true in a particular situation.e.g. He wont come to the party unless you invite him.新课讲解Sometimes we can use if . not to replace unless.e.g. The situation will continue unless humans stop hunting them for their fur and bones. The situation will continue if humans do not stop hunt

13、ing them for their fur and bones.新课讲解e.g. Unless it rains tomorrow, we are going to play football in the park. If it does not rain tomorrow, we are going to play football in the park.新课讲解The unless-clause can come first or after the main clause.e.g. Unless you try your best, you will not realize you

14、r dream. You will be late unless you leave right now.新课讲解A trip to a film and TV studioSandy has prepared some tips for a school trip to a film and TV studio. However, she tore the tips by accident. Help her put the tips back together. Match the two parts of the sentences and write the correct lette

15、rs in the blanks.新课讲解Unless the weather report says it is going to rain, _ 2 We will arrive at the studio around 9:30 a.m., _c you will not have to take an umbrella with you.d unless the traffic is very heavy.cd新课讲解Unless you already know the studio very well, _4 You will buy your lunch at the resta

16、urants in the studio, _a unless you take your own food with you.f you will travel around it with a tour guide.fa新课讲解5 Unless you are tired, _ You will have a chance to see how a TV programme is recorded, _beb you will not need to take the minibus in the studio. e unless you have little interest in i

17、t.新课讲解Work out the rule!We use the simple _ (future, present) tense in the unless-clause.present新课讲解 条件状语从句 条件状语从句主要由if或unless引导： if条件句1) if条件句：条件句用于陈述语气，表示 假设的情况可能发生，其中if是“如果” 的意思。e.g. If it rains, we will stay at home. 如果下雨我们就待在家里。Grammar新课讲解2)用法：(1)条件状语从句通常由连词if引导，意为“如 果、假如”，主句不能用begoingto表示将 来，而

18、应该用shall, will。e.g. Ifyouleavenow,youwillneverregretit. 如果你现在离开，你永远都不会后悔。(2)if“如果”，引导条件状语从句，主句用一般 将来时，从句则用一般现在时。e.g. Ifitrainstomorrow,Ishantclimbthehills. 如果明天下雨，我就不爬山了。新课讲解(3)主句是祈使句或含有情态动词，从句也用一 般现在时。 e.g. PleasecallmeifhecomesnextSunday. 如果他下周日过来请打电话给我。注意:宾语从句中的if与条件状语从句if的区 别。宾语从句中的if “是否”相当于whether, 引导宾语从句, 时态需根据语境确定。如果主句用一般现在时, 从句可以根据具体情况选用时态, 如果主句用一般过去时, 从句必须用过去时的某种形式。新课讲解unless 条件句unless引导的条件句，表