新目标八年级下册《Unit5_If_you_go_to_the_party》PPT课件1精选.pptVIP

New words expressions 1.玩的开心 2.组织 3.拿走 4.清除，打扫 5.花 6.在世界各地 7.谋生 8.反对 9. 机会，机遇 10.一直 If 的用法小结 1.If是连词，作为如果、假如将时，引导的句子叫条件状语从句 if引导的条件状语从句的位置比较灵活，既可以置于句首，也可以置于句末。但放句首时和主句用逗号隔开。 eg:If it rains tomorrow, I will stay at home. If 的用法小结 2。时态的变化。 1.如果主句是一般将来时时，if引导的从句必须用一般现在时来代替一般将来时，表示将来可能发生的动作或存在的状态。 Eg: We will go shopping if it doesn’t rain tomorrow. 2。如果主句中含有must, may, can等情态动词时，从句也要用一般现在时。 Eg:If you eat too much, you may get fat. 3.如果主句是祈使句，从句也要用一般现在时。 Eg:Don’t watch TV if you don’t finish your homework. 4。表示真实条件、客观真理、自然现象、定理定义 . 民 间谚语等，主从句全用一般现在时 即 If + 句子 （一般现在时 ），+ 主句 （ 一般现在时）. 例： If you study hard ,you are sure to succeed . If you put ice in a warm place ,it turns into water . If a glass falls on the floor, it usually breaks If you cook a banana, it becomes very soft . If 的用法小结 .此外，祈使句+and/then/or + 一般将来时的陈述句=if从句+主句 ① Work hard, and you’ll pass the exam. = If you work hard, you will pass the exam. ② Get up early, or you will be late. =If you don’t get up early, you will be late. If 的用法小结 此外，If 除了引导条件状语从句之外，还可以引导宾语从句，意为“是否”，此时，if 引导的宾语从句中可以用将来时或其它时态。 Eg:I don t know if it will rain tomorrow. Eg:She asked if I was interested in math. 2a Listen and number ________study for the test ________help me organize it ________too early ________make some food ________Saturday afternoon ________play party games 2a 2b Andrea: Hi, Mark. I want to have a class _______, will you help me __________ it ? Mark : Sure, Andrea. I can ________ you. So when shall we have the party ? Andrea: Let’s have it ______ after class. Mark: No, today is too________. If we have it today, _____ the class won’t _______. Andrea: Okay, let’s have it ___________. Mark: Hmm….there is a_____ tomorrow. Students will leave _____ to ______ for the test. Let’s have it on the _______________. Andrea: Okay, Let’s have it on __________ afternoon. We can all meet and __________. Mark: No, I don’t think we should watch a video. Some students will be bored. Let’s play ___