Unit 6 A charity walk
5. it is lucky that i found the lost keys.
6. it is funny that she is wearing such a dress.
7. it is very tough that they work with tired bodies.
8. it is useful that you take a map.
講解二、
it is ＋ adj. ＋ to do。如：
1. it’s meaningful to join the tree-planting club.
2. it is important to keep parks clean.
3. it is easy to give seats to the elderly.
4. it is good to help blind people cross the road.
5. it is helpful to donate money to charities.
6. it is fun to do voluntary work.
7. it is difficult to walk through eight country parks.
8. it is useful to have support teams.
9. it is necessary to learn english well.
【典型例題】
用“it is + adj. + to do”連接句子
1. interesting/ on the great wall /walk
2. walk/ on a rainy day/ hard
3. finish/ easy/ the walk
4. before the walk/ necessary/ practice
5. fun/ on the great wall/ the view/ look at
6. to support us/ find/ important/ someone
【答案】
1. it’s interesting to walk on the great wall.
2. it’s hard to walk on a rainy day.
3. it’s easy to finish the walk.
4. it’s necessary to practice before the walk.
5. it’s fun to look at the view on the great wall
6. it’s important to find someone to support us.
講解三、
it is＋adj. ＋（for sb. ）＋動詞不定式短語。
句中的形容詞僅僅是描述事物的形容詞，如：difficult， easy，hard，important，dangerous…如：
it is interesting to play with snow in winter. 冬季里玩雪是很有趣的。
it’s important for us to keep the water clean. 保持水質清潔對我們來說是很重要的。
it is important for us to support him.
it is meaningful for us to help ben.
it is important for him to learn some computer skills.
it is difficult for joan to finish the work within 10 days.
【典型例題】
一、用it is . . . for sb. to do sth. 轉換句型
1. to learn team spirit is an excellent chance for people.
2. to support and help each other before and during the event is necessary for them.
3. to have support teams to bring food and drinks is useful for trailwalkers.
4. to start training a few months before the walk is necessary for you.
【答案】
1. it is an excellent chance for people to learn team spirit.
2. it is necessary for them to support and help each other before and during the event.
3. it is useful for trailwalkers to have support teams to bring food and drinks.
4. it is necessary for you to start training a few months before the walk.
二、用“it is + adj. + for sb. to do sth. ” 連接句子
1. good /me/ eat more carrots
2. necessary/ children / sleep/ for eight hours every night
3. useful/everyone/learn/ computer skills