New Words：

adult ['ædʌlt]
n.成人；成年人；成年动物
adj.成年的；成熟的；理智的；成人的

Sample Sentences：

He'd spent all his adult life in the army.
We should do our best to develop the adult education.

Children and adult shall have equal rights.
Anyone over eighteen years of age counts as adult.

New Words：

appoint [əˈpɔɪnt] v. 任命；委任；安排；约定(时间、地点)

Sample Sentences：

We must appoint a day to meet again.
They have appointed a new head teacher at my son's school.
Maybe we can appoint Simpson instead of Jackson to do that job.

New Words：

homeless ['həumlis]
adj.无家可归的
n.无家可归的人；流浪汉

Sample Sentences：

It is so generous of him to give money to the homeless.
London is full of homeless people begging in the streets.
Floods in that country made thousands of people homeless.

New Words：

penny ['peni]n. 分；便士
pence [pens] penny的复数
pennies ['peniz] penny的复数

Sample Sentences：

A hundred pence make one pound.
There are one hundred pennies in every dollar.
We spent every last penny we had on the house.
He arrived in this country six years ago without a penny.

New Words：

mayor [ˈmeɪər] n. 市长；镇长

Sample Sentences：

He was appointed mayor of the city.
The mayor made a speech at the opening.
If you are the mayor of a city, what will you do for the street kids and the homeless people?

appoint [əˈpɔɪnt] v. 任命；委任