高中英语

2022-04-28 13:05

127.Sugar____of carbon, hydrogen and oxygen.A.consist B.consists C.consisted D.is consistcd请详细解析谢谢！

2022-04-28 15:57

B consists
consit of主动表被动

consist of = be made up of 由。组成，因此用主动形式；句子陈述客观事实，用一般现在时；主语为第三人称单数，动词加s

B,sugar为不可数名词，做主语时用单数。本题考查固定短语，consist of = be made up of,通常不用于被动。