New Words：

policy ['pɔləsi] n. 政策；方针
presidential [ˌprezɪˈdenʃl] adj. 总统的

Sample Sentences：

No smoking is a company policy.
One of the new government's policies is to cut taxes.
He is one of the front runners in the presidential election.

New Words：

environ [in'vaiərən]
v.包围；环绕
n.附近，近郊

environment [in'vaiərənmənt] n. 环境

Sample Sentences：

This is a town environ by/with forests.
They used to live in the environs of Paris.

An unhappy home environment can affect a child's behaviour.
They plant trees in the desert area to keep the sand and protect the environment.

New Words：

general ['dʒenərəl]
n.将军
adj.一般的；总的；普遍的；大致的；大概的

Sample Sentences：

I have a general idea of how a car works.
In general boys like sports more than girls.
The general ordered the soldier stood straight.
They fired in the general direction of the enemy.

New Words：

elect [i'lekt] v. 选举
election [i'lekʃən] n. 选举

Sample Sentences：

We elected him (to be) monitor.
Like men, woman have the right to elect and to be elected.
We elect politicians based on their views - for example on the environment, on education, on foreign policy.

In America, presidential elections are held every four years.
It's impossible to tell who will win the next election.

environment [in'vaiərənmənt] n. 环境
policy ['pɔləsi] n. 政策；方针
presidential [ˌprezɪˈdenʃl] adj. 总统的

New Words：

rectangle ['rektæŋgl] n. 长方形；矩形
scaffold ['skæfəld] 脚手架；建筑架；断头台；绞刑架

Sample Sentences：

He handed me a little rectangle of white paper.
Can you draw a rectangle with one hand and a circle with the other?

The worker fell down from the scaffold.
She went to the scaffold when she was 19.