八年级英语课件：Unit+10《If+you+go+to+the+party,+you’ll+have+a+great+

if 引导一个条件状语从句当主句是一般将来时时(will+动原),if 引导的 从句必须用现在时(动词用动原或三单形式)来 表示将来可能发生的动作或存在的状态。 If it is sunny tomorrow, we will go to the park. 如果明天天气好,我们就去公园。 If the rain stops tonight, we will go to the movies. 如果今晚雨停了，我们就去看电影。 If she is kind to me, I won’t argue with her. 如果她好好对我，我就不跟她吵。

Fill in the blanks using the correct forms of the words.1.I’m sure if he ____ (go) to the party,

he ____ (have) a great time.2. I’ll buy a computer if I ___(have) enough money. 3. You ___ (not get) nervous if you __ (do ) enough exercise. 4. Please let us know if he ___ (arrive) tomorrow. 5. He’ll get better grades if he _______ (study ) hard. 6.We'll go for a picnic if it _______(not rain) this Sunday.

Fill in the blanks using the correct forms of the words.goes 1. I’m sure if he _________ (go) to the party, he ___________ (have) a great time. will have 2. I’ll buy a computer if I ______ (have) have enough money. 3. You _____________ (not get) nervous if won’t get do (do ) enough exercise. you _____

4. Please let us know if he arrives _________ (arrive) tomorrow. 5. He’ll get better grades if he _________ studies (study ) hard.

6.We’ll go for a picnic if itdoesn’t rain __________(not rain) this Sunday.

Read the conversation and 2d answer the questions.1. What will happen if we ask people to bring food? Why? _____________________________________ They’ll just bring potato chips and _____________________________________ chocolate because they’ll be too lazy to cook. 2. What will happen if we give people some small gifts if they win? More people will want to play the games. ___________________________________

2d Role-play the conversation.

根据课本内容，完成下列句子。 1. 我想我将会乘公共汽车去参加聚会。think I’ll take the bus to the ______. party I _____ 2. 如果你那样做，你将会迟到。 If you _____, do _____ you’ll be late.

3. 我想我将待在家里。 think _____ I’ll stay at home. I _____ 4. 如果你那样做，你将会觉得很抱歉。 do ______ you’ll ____ be sorry. If you ____, 5. 如果他们今天聚会，将会发生什 么事？ What will have the _____ ___ happen _______ if they _____ party today?

6. 如果他们今天聚会，班里一半的学生将 不会去。 If they ______ have the party today, ______ half the class _______ won’t come. 7. 我们应当要求人们带食物来吗？

Should we ______ ask people to ______ bring food?

8. 如果我们要求人们带食物来时，他们将会只带薯条和巧克力。 If ask people to bring food, ______ we ______ they’ll just ______ bring potato chips and ________ chocolate.

含if条件状语从句的主从复合句1. if 条件状语从句中，主句用一般将来 时，从

句用___________ 一般现在时 表示将来。 ________原则。 主将从现 例如：We will go to the park if it _______ rain (rain) tomorrow. doesn’t ______

2. if 条件状语从句中，如果主句有 must,can,may 等情态动词，从 一般现在时 。 句用___________

例如：You must stop if the trafficlight ____ is (be) red.

3. if 条件状语从句中，主句是祈使句， 一般现在时 表示将来。 从句用____________ _________ 主祈从现 原则。 例如：Don’ t wait for me if I _____ am (be) late.

1. Put up your hands if you _____ have (have) any questions. 2. If it ____ is (be) cold tomorrow, I will wear my sweater.

3. He can go home if he finishes ________ (finish) his homework.

upset adj. 难过；失望；沮丧 e.g. Mom will be upset if I forget it again. 如果我再忘记，我妈妈会失望的。