1.Eat less food ______ you want to put on weight.

1.Eat less food ______ you want to put on weight.
A.if B.unless C.until D.as soon as
2.Guilin is the most beautiful place ______ people all over the world want to visit.
A.where B.which C.what D.that

（B）1.Eat less food __unless____ you want to put on weight.
A.if （如果） B.unless（除非） C.until（直到,直至） D.as soon as（一...就）
根据句意,前后意思相反,所以选unless.
翻译：除非你想增肥,否则少吃点东西.
（D）2.Guilin is the most beautiful place __that____ people all over the world want to visit.
A.where（用于地点状语从句） B.which（用于定语从句） C.what（用于宾语从句） D.that（用于定语从句,与最高级为固定搭配）
翻译：桂林是全世界人们都想游览的美丽之地.