Ⅰ.单句语法填空
1．The boy didn’t pass the entrance examination，so his parents were ________ (happy) about the result.
答案： unhappy
2．He had________(read) a road sign and taken the wrong way.
答案： misread
3．It is hoped that________(nature) resources will be found on Mars.
答案： natural
4．He was one of the greatest________(think) and had a great effect on Chinese culture.
答案： thinkers
5．(2017·全国卷Ⅲ) It is________(certain) fun but the lifestyle is a little unreal.
答案： certainly
6．On New Year’s Day，we visited every neighbor in the village and were greeted ________ (warm) at each house.
答案： warmly
