1、Grade 8Unit 10If you go to the party,youll have a great time!Section A Grammar Focus-3cWarming-upWhat will happen if you suddenly(突然突然)find a snake on the way to school?Whats this?Its a snake.If I do,I will cry.If I do,I will feel afraid.RevisionIf she studies hard,she will go to university.Presenta
2、tion观察观察 思考思考 回答回答方框中句子包含了什么语法？方框中句子包含了什么语法？if 引导的条件状语从句引导的条件状语从句上表中共有几个条件状语从句？上表中共有几个条件状语从句？有有5个条件状语从句个条件状语从句Eplaination由一个主句和一个或一个以上的从句构成的句子叫复合句。若由连接词引导的句子在复合句中表示条件，作主句的条件状语，则该句子被称为条件状语从句。1.主句和从句 的时态2.If引导的从句是一个完整的句子，一定要有主语定义注意 当主句是一般将来时态时,if引导的从句必须用一般现在时态来表示将来可能发生的动作或存在的状态。Eplaination1条件状语从句的引导词。
3、条件状语从句通常由连词 if(如果，假如)，unless(除非，如果不)ifnot 引导。eg：You will get good grades if you study hard.如果你努力学习，就会取得好成绩。Eplaination2条件状语从句的位置条件状语从句既可以放在主句之前，也可以放在主句之后。如果放在主句之前，要用逗号与主句隔开；如果放在主句之后，中间不必用逗号。eg：如果明天不下雨，我们将去购物 If it doesnt rain tomorrow，we will go shopping.=We will go shopping if it doesnt rain tomorr
4、ow.Eplaination3条件状语从句的时态。若主句为将来时态或是含有情态动词的句子或祈使句，则条件状语从句用一般现在时。eg：He will not leave if it isnt fine tomorrow.如果明天天气不好，他就不会走。(主句用一般将来时，从句用一般现在时)If he comes，let me know.如果他来，让我知道。(主句是祈使句，从句用一般现在时)Eplaination【拓展】主句的将来时态并不仅限于will动词原形构成的一般将来时,还包括be going to动词原形、be doing所表示的一般将来时以及我们以后会学到的其它的将来时态。例如:What
5、is he going to do when he grows up?他长大了想干什么？We are leaving for Hefei tomorrow if it doesnt rain.如果明天不下雨,我们就去合肥。We will buy that bike next week if its price keeps going down.如果价格持续下降,下个礼拜我们就买那辆自行车。Practiceknowdothinkgowill betoldhavewearwill lookgowalkwill taketakewill beadvice n.劝告；建议（不可数名词）e.g.Can
6、you give me some advice?能请你给我一些建议吗？a piece of advice/a word of advice 一条建议；一则忠告PracticeIll be late for school.my parents will be upset.Ill become very heavy.I play chess after school every day.I dont go to my friends parties.WritingI think I will go to the movies tonight.If I go to the movies,I wont
7、 finish my homework.If I dont finish my homework,the teacher will be angry.If the teacher is not be happy,she will tell my parents.If my parents know it,they .Speaking1.If it rains tomorrow,we _ visit the museum.A dont do B wont go C arent go D didnt go.2 Will you go to the park if it _ fine?A will
8、be B was C is D/3 If you _ to school late,your teacher _ angry with you.A come;are B come,will be C will come;are D will come;will be4 If you _ hard,you will _ successful.A work,are B works,is C to work,be D work,be5 If I _ too much TV,my mother will _.A watch,angry B watched,be angry C watch,be angry D will watch,be angryBCBDCExercisesHomework1.Role-play the conversation in 2d.2.Finish the exercises in the workbook.
