New Words：

develop [di'veləp] v. 发展；开发；(使)成长；壮大；发育

Sample Sentences：

The child is developing normally.
Modern music was first developed in Italy.
Warm rains and summer suns develop the plants.
We must do our best to develop the national economy.
Humans are the only animals to have developed speech.

normal ['nɔ:məl] adj. 典型的；正常的；一般的
normally ['nɔ:məli] adv. 通常；正常地；正常情况下；平常地

New Words：

method ['meθəd] n.方法；办法；措施；条理

Sample Sentences：

He is a man of method.
I have a simple and easy method.
He invented a new method to make bread.
What is the best method of studying English?

New Words：

modern ['mɔdən] adj.现代的；时髦的；近代的；现代化的
modern times 现代；近代；当代

Sample Sentences：

She wears a modern dress.
He was one of the great artists in modern times.
To see the China of modern times, go to shanghai.
In the afternoon they went to an exhibition of modern art.

New Words：

ancient [ˈeɪnʃənt] adj. 古代的；古老的；很老的
ancient times 古代

Sample Sentences：

He drives an ancient car.
Some ancient towns have wall around them.
In ancient times, people knew how to make use of fire.
In ancient times the earth was conceived as a flat disc.

New Words：

burn [bɜrn] v. 烧伤；燃烧；烫伤；烧着；急于
过去式： burnt burned
过去分词： burnt burned

Sample Sentences：

My cheeks burned.
Half the candle had burnt away.
They burned coal to heat the room.
She is burning to tell you the news.
The lights in the hall burned all night.
He was burning to go climbing again.
When he said I was a fool,I really burned.