certain people from gaining access to certain professions. They can also have too much debt to other nations to help out their own people or invest in resources to gain competitive economic ground. Many nations are in a state of civil war or war with a neighboring country. People in these countries dream of a place where they can live peacefully and feel safe. So they immigrate to America.

Some people have immigrated to the states to escape religious persecution. In the Middle East，Christians，Jews and Muslims are still fighting for the holy(神圣的)land which they believe belongs to them. Some immigrate to follow friends and family. Other people are brought here because a US family has adopted them from another place.

[知 识 梳 理]

Ⅰ. 核心单词

一、单词拼写

1．It was becoming ________(明显的) to me that she didn't like me.

2．The unemployment________(百分率)keeps rising in the recent financial crisis.

3．The________(大多数)of people interviewed prefer watching TV to listening to radio.

4．The most popular ________(方式)of transportation are bikes and buses.

5．Rising food prices caused great________(困苦)for most of the people.

答案　1. distinct　2. percentage　3. majority　4. means　5. hardship

二、单句语法填空

1．Her ________(elect)to the board of directors caused great surprise.

2．The government announced additional rules on ________(immigrate)．

3．People of different races have different ________(race) customs.

4．In addition，many people died of the diseases________(bring)by the Europeans.

5．California also has the distinction of being the most multicultural state in the USA，________(attract)people from all over the world.

答案　1. election　2. immigration　3. racial　4. brought　5. having attracted

Ⅱ. 重点短语

一、补全短语