New Words：

sort[sɔ:t]
n.分类；种类；类别；排序
v.整理；把…分类；妥善处理；安排妥当

Sample Sentences：

We saw many sorts of animals in the zoo.
What sort of music do you like?’ ‘Oh, all sorts.’
He's the sort of person who only cares about money.

Sort these eggs by size.
If you help me sort out the things upstairs, I'll breakfast you tomorrow.

New Words：

devote [di'vəut] vt. 致力于；奉献给；献(身)；投入(时间、精力等)；
physicist ['fizisist] n. 物理学家

Sample Sentences：

He devoted himself entirely to music.
He wanted to be a physicist and devote himself to research.
He started to study physics and decided to devote his whole life to the science.

New Words：

scientific [.saiən'tifik] adj. 科学的

Sample Sentences：

We all support his scientific research.
She devoted all her life to scientific work.
He is proud of his great success in scientific researches.

devote [di'vəut] vt. 致力于；奉献给；致力于；献(身)；投入(时间、精力等)；

New Words：

undiscovered ['ʌndis'kʌvəd] adj. 未被发现的
discovery [dis'kʌvəri] n. 发现；发觉

Sample Sentences：

New scientific discoveries are being made everyday.
I spent most of my time searching for undiscovered treasures.
The drug is not a new discovery ─ it's been known about for years.
The discovery of a child's body in the river has shocked the village.

scientific [.saiən'tifik] adj. 科学的

New Words：

discover [dis'kʌvər] v. 找到；查明；（第一个）发现；了解到
rediscover [.ri:dis'kʌvər] v. 重新发现；重新找到

Sample Sentences：

Who first discovered America?
It is time to stop and rediscover the "good life.
Columbus is said to have discovered America in 1492.
We discovered this beach while we were sailing around the island.