Unit 1 Art Learning about language课时作业

Ⅰ.语法填空

　　1．If he wants to go to Hong Kong tonight, he has no alternative but __________ (go) by air.

　　[答案]　to go

　　2．The boss commanded that his workers __________ (not leave) their office before dark.

　　[答案]　(should) not leave

　　3．The man they arrested last night was charged __________ murder.

　　[答案]　with

　　4． It has changed who we are and continues to fuel our __________ (optimistic)．

　　[答案]　optimism

　　5． I had a learning __________ (disable) from an early age.

　　[答案]　disability

　　6．Teens and young adults may feel forced to use drugs, or join gangs that encourage __________ (crime) behavior.

　　[答案]　criminal

　　7．In a year he collected __________ (rely) information on 1,600 shoes.

　　[答案]　reliable

　　8．It's an investment that is very __________ (risk) but could yield great profits.

　　 [答案]　risky

Ⅱ.选词填空

1.