Unit 1 Food matters
Grammar and usage教学设计
科目:英语 课题:Grammar and usage 课时:1课时
教学目标与核心素养:
知识目标:理解并掌握动词不定式作主语和表语;
能力目标:掌握动词不定式作主语和表语的规则;
情感目标:区分和使用正确的不定式形式来完成改写句子和一篇杂志文章的任务。
教学重难点
教学重点:理解并掌握动词不定式作主语和表语
教学难点:掌握动词不定式作主语和表语的规则,并灵活运用
课前准备:多媒体,黑板,粉笔
教学过程:
一、Pre-reading
1. Greeting
2. Leading-in
教师活动:教师让学生阅读第6页的博客,并完成表格。
to-infinitives as subjects To eat out was also a social activity, allowing me to enhance the relationship with my friends. When I picked a popular recipe and gave it a try, I discovered that it was not that difficult to make a simple and tasty dish.
to-infinitives as predicatives Not that long ago, my first thought at mealtimes was to eat at a restaurant. My plan is to invite my friends over at the weekend to show them my new-found skills.
2、 While-reading
学生活动:在教师的引导下,总结动词不定式作主语和表语的规则。
动词不定式作主语
动词不定式做主语时,句子的谓语动词常用单数。
(1)动词不定式做主语置于句首。
To see is to believe. 眼见为实。
To love others is to be loved. 爱人即爱己。
(2)it做形式主语,动词不定式做真正的主语置于句尾,常用于下列句式中:
①It + be+名词+to do sth.
It is a problem to maintain adequate pension funds.
要维持足够的养老基金是个问题。
②It takes sb. +some time +to do sth.
It took me an hour to repair my bike.
我花了一个小时修理我的自行车。
③It + be+形容词+for sb. +to do sth.,适用于此句型的形容词有 difficult,easy,hard,important,impossible,necessary等。
It's very dangerous for children to cross the busy street.
对孩子们来说,穿过熙熙攘攘的街道很危险。
④It + be+形容词+of sb. +to do sth.,适用于此句型的形容词有careless,clever,good,foolish,honest,kind,lazy,nice,right,silly,stupid,wise等。
It's clever of you to work out the maths problem. =You are clever to work out the maths problem.
你真聪明,解出了这道数学题。
注意:
动词不定式做主语时多数情况下可以用动名词替换,但在以下三种情况下不能替换:一些固定说法中;表示强烈的对比时;表示某一次具体的动作或具体的情况时。
动词不定式作表语
动词不定式做表语,通常用来说明主语的具体内容或者性质。常见的用来做主语的名词有:aim,duty,dream,hope,idea,plan,wish,goal,task,ambition,purpose,work,job等表示目标、意向、计划、任务的词。
My goal is to be a teacher. 我的目标是当一名教师。
Always keep in mind that your main task is to get this company running smoothly.
永远记住:你的主要任务是使这家公司运转顺利。
有些时候,系动词会是appear,seem,prove,tum out,remain等。
Whether we will succeed or not remains to be seen.
我们能否成功仍有待观察。
注意:
(1)当主语部分有实义动词do或do的某种形式时,动词不定式做表语时可以省略to。
All I could do now is (to) keep silent.
我现在所能做的就是保持沉默。
(2)动词不定式和动名词做表语都是用于表示主语“是什么”,但动词不定式做表语强调的是一次性的、具体的、将要发生的动作;动名词做表语强调的是一般性的、抽象的、经常发生的动作。
The man's job is to paint the walls.
这位男士的工作是粉刷这些墙。(表示一次性的、具体的、目前要做的事情)
The man's job is painting walls.
这位男士的工作是粉刷墙。(表示经常性的日常工作)
(3)某些动词的不定式与be动词连用时常用主动形式表示被动意义,如be to let(出租),be to blame(应负责任)等。
The house is to let. 这所房子要出租。
Who is to blame for the accident
谁应该为这起事故负责?
三、After-reading
教师活动:指导学生完成第七页B1。
①The next dish to prepare by the cook is Kung Pao Chicken.
②To prepare home-cooked meals is easy and enjoyable.
③Her dream is to open a restaurant some day.
④We will put the potatoes in the pot first to cook them quickly.
⑤I consider the Soup of the Day to be the best option on the menu.
学生活动:完成第七页B2。
(1)Located(2)to see(3)to turn(4)to sit(5)painted(6)ranging(7)to invite(8)to be
四、Summary
归纳总结动词不定式作主语和表语的用法。
五、作业布置
完成B3活动的写作。
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