1. It is important for everyone to learn English well in our rapidly developing world.
同样句型包括：It is important/（necessary, difficult, convenient, possible，impossible）for sb. to do sth.
It is not very convenient for us to pay by credit card today.
2. The harder you work at it, the more progress you will make.
The more I read the book，the more I liked it．
The earlier you start,the sooner you’ll be back.
The sooner (you finish it), the better (it will be).
The more (you know), the more dangerous (it will be).
The world is getting smaller and smaller.世界已经变得越来越小了。
More and more old people have capital tied up in a house.
More and more people are using the Internet.
Stores spend more and more on crime prevention every year.
Each day that passed he grew more and more desperate.
As Christmas neared, the children became more and more excited.
As the great day approached, she grew more and more nervous.
As the evening wore on, she became more and more nervous.
As time went on the visits got more and more regular
Like more and more women, she believes marriage would cramp her style.像越来越多的女性一样，她认为婚姻会对她形成束缚。
By this time she was in her nineties and needed help more and more frequently.
More and more women are wearing men’s fragrances.
All the nice areas in Florida are becoming more and more urbanized.
I got more and more angry as I waited for her to phone.
Graduates are finding it more and more difficult to find employment.
It was becoming more and more difficult to live on his salary.
3. If everyone makes a contribution to protecting the environment, the world will become much more beautiful.
类似的句型还有：If necessary…, they can…
If necessary the patient can then visit his doctor for further advice
If necessary, we can always change the date of our trip.
They were ready to die, if necessary, for their country.