【推荐1】He was so seriously ill that he couldn't go on with his work.
He was seriously ill ________ ________ he couldn't go on with his work.

【推荐2】He went to Oxford University in Britain in order to further his study.(保持原句意思）
He went to Oxford University in Britain ________ ________ he could further his study.

【推荐3】I listen to tapes every day in order to improve my listening.(改为同义句)
I listen to tapes every day ________ can improve my listening.

【推荐1】All of us got up early in order to arrive on time. （保持句意不变）
All of us got up early so that __________ __________ arrive on time.

【推荐2】Ⅳ.句型转换
1. A: Greeting each other with a smile is necessary in our daily life. (根据A句的意思完成B句，使两句的意思基本相同)
B: ______ is necessary ______ greet each other with a smile in our daily life.
2. There are five million people in our city. (对画线部分提问)
______ ______ ______ are there in your city?
3. In order to protect the environment, we turn off the light when we leave the room. (改为同义句)
We turn off the light when we leave the room ______ ______ we can protect the environment.
4. My home is not far from my school, so I often go to school on foot. (改为同义句)
My home is ______ ______ my school, so I often go to school on foot.
5. They have known David for over 20 years. (改为同义句)
They have known David for ______ ______ 20 years.

【推荐3】完成句子。
1. 因为今天早上车太多，Tony上学迟到了。(late)
Tony __________________ school because of the heavy traffic this morning.
2. 你越认真，犯的错误越少。(careful; few)
___________________________you are, __________________ you'll make.
3. 对汤姆来说，一直保持礼貌并不难。(difficult; polite)
___________________________ all the time.
4. 为了拯救尽可能多的动物，咱们看看还能做些什么。(save; possible)
Let's find out what else we can do __________________.
5. 我们最好按时到校，以便有时间为考试做准备。(arrive)
We____________________________________ get ready for the test.