Grammar I9A Unit 3 Teenage problemsProverbsProverbs ( 谚语）1. To say is one thing and to do is another.说时容易做时难。2. To mention the wolf's name is to see the same. 说曹操，曹操到。3. Never offer to teach fish to swim. 不要班门弄斧 4. A man is never too old to learn. 活到老，学到老 5. Learn to walk before you run.循序渐进 6. To stand still is to move back. 逆水行舟，不进则退 7. To see is to believe.眼见为实 A guessing gameTeenage problemsShe has lots of homework to do.It is important to do her homework.To plant trees every year is necessary.It is necessary________ (plant) trees every year.to plantSubjectIt is important to do her homework.形式主语=It is + adj. ( for sb.) to do sth.It is necessary for us to work hard every day.Can you change the sentences? 1.To work hard every day is necessary for us.考题链接考题链接 It’s important for us to do some exercise. 2. To do some exercise is important for us. His dream is to be a great football player.Teenage problemsSimon has no time to play football.Simon’s dream is to be a great football player.Predicative系动词Predicative我的目的是帮助你解决你的问题。My purpose _______________________________.is to help you solve your problemA: What’s your dream/job/duty…?B: My…is to…dream a dancer duty clean the classroomjobhelp the patienttaskfinish the projectActivityActivityUse ‘to’-infinitives to ask and answerTeenage problemsShe refuses to do so much work.His parents don’t allow him to play outside late.Teenage problemsObjectMillie refuses to do so much work.动词ObjectSimon’s parents don’t allow him to play outside. ObjectObject complementObject complementrefuse to do Objectallow sb. to do Object complementExercises:to plans college to Simon go （连词成句）____________...
