Unit 3 单元重点语法Grammar 非谓语动词之动词ing和动词不定式做主语-2022-2023学年高二英语选择性必修第一册单元重难点易错题精练（外研版2019）

Unit 3 单元重点语法专项练习 非谓语动词之动词ing和动词不定式做主语 一、单项选择 1．It is proved that the latest scientific equipment allows the sportsmen to get the best out of their training. A．using B．used C．to use D．use 2．It’s necessary to be prepared for a job interview. _____ the answer ready will be of great help. A．To have had B．Having had C．Have D．Having 3．____________ in these conditions is not a pleasure but a suffer. A．Work B．Works C．Worked D．Working 4．--What made Rodger so upset? --______three tickets for the football match. A．Lost B．Losing C．Because of losing D．Since he lost 5．It has been warned that to the surroundings with people infected by Covid-19 without any protection can lead to a severe result. A．being exposed B．exposed C．having exposed D．to expose 6．---What made he upset?    ---______. A．Because of losing her key B．Because she lost her key C．Losing her key D．Having lost her key 7．— Henry doesn’t seem to be what he was. — No. _______ so much in the war has made him more thoughtful. A．Se