2023年中考英语to do做主语的基本用法课件(共18张PPT)

(共18张PPT)
不定式to do作主语基本用法
I plan to make a big meal for my father.
I plan to make a big meal for my father.
我计划给我爸爸做一顿大餐。
做一顿大餐给我爸爸是我的计划。
I plan to make a big meal for my father.
我计划给我爸爸做一顿大餐。
给我爸爸做一顿大餐是我的计划。
To make a big meal for my father is my plan.
to do 作主语，表示具体的，一次性的动作。
用法
To make a big meal for my father is my plan.
to do作主语时，谓语动词用单数。
注意
练习
填空
To buy some foods （is/are）my decision.
为了避免头重脚轻，常用it作形式主语。
注意
To buy some foods is my decision.
It is my decision.
为了避免头重脚轻，常用it作形式主语。
注意
To buy some foods is my decision.
It is my decision
to buy some foods.
常见句型
It is + 形容词 + （for/of sb.） to do
当adj.描述事物的性质时，用for。
It is lucky for me to have the discount.
当adj.描述人的品质时，用of。
It is kind of you to help me.
2. It takes sb. some time to do 做某事花费某人多长时间
It takes me one hour to arrive at home on foot.
3. It + be + 名词 + to do
It is a good idea to buy a car.
It's important you walk after supper．
A．of；to B．for；of C．to；to D．for；to
2. --I often have hamburgers for lunch.
--It’s a bad habit too much junk food.
A. eat B. to eat C. eating D. to eating
练习
to do作主语与doing作主语的辨析
to do作主语与doing作主语的区别：
to do作主语表示具体的，一次性的动作。
To cook by myself is not easy.
doing作主语表示一般的，经常性的动作。
Cooking by myself is a good habit.
1. is a good form of exercise for both young and old.
A. The walk B. Walking C. To walk D. Walk
with them in this summer camp is wonderful.
A. Making friends B. Made friends
C. To make friends D. Make friends
练习
总结
练习
1. against the COVID-19 needs much effort.
A. Fighting B. To fight C. Fight D. Fights
2. It only him 20 minutes to his office every day.
take; to drive B. to take; to drive
C. takes; to drive D. takes; drive
bicycle can make you smart.
To ride B. Ride C. Riding D. Rides
thank you！