(astonish).

　　2．Barbecue is a favourite way of __entertaining__ (entertain) friends.

　　3．We should never be __contented__ (content)with book knowledge only.

　　4．Some __performers__ (perform) are giving a wonderful __performance__ (perform) on the stage.

　　5．What was the cause of his __failure__ (fail) ？

　　6．His __convincing__ (convince) argument made people present __convinced__ (convince).

　　7．He set about helping __homeless__ (home) women and children to place of safety.

　　8．__Fortunately__ (fortunate) the train was late so we did not miss it.

　　9．She went off in the opposite __direction__ (direct).

　　10．We were amused by his __humorous__ (humor) gesture.

　　Ⅳ.单句改错

　　1．We shouldn't complain about poverty since many families are much badly off than we are.(badly→worse)

　　2．We found that meaningful that we get together to have fun once in a while.(meaningful前加so)

　　3．With so many people attend the party，the hall became crowded.(attend→attending)

　　4．Which is known to us all，the earth travels around the sun.(Which→As)

　　5．The bread winner left home without a word，having left the family in a poorer situation.(having left→leaving)