高中2019屆英語語法專題講義 冠詞
13--26. you know he is not going to let us leave early if we ___ get the work done. （上海春）a. can't b. may not c. shouldn't d. mustn't 14-30. --–may i smoke here ?--- if you ____, choose a seat in the smoking section. （山東）a. should b. could c. may d. must 15-11. we have proved great adventurers, but we have done the greatest march ever made in the past ten years. （天津）a. needn’t b. may not c. shouldn’t d. mustn’t第九講 句子成分一、知識要點（一）句子成分的定義：構成句子的各個部分叫做句子成分。句子成分有主要成分和次要成分；主要成分有主語和謂語；次要成分有表語、賓語、定語、狀語、補足語和同位語。（二）主語：主語是一個句子所敘述的主體，一般位于句首。但在there be結構、疑問句（當主語不疑問詞時）和倒裝句中，主語位于謂語、助動詞或情態動詞后面。主語可由名詞、代詞、數詞、不定式、動名詞、名詞化的形容詞和主語從句等表示。例如： during the 1990s, american country music has become more and more popular.（名詞） we often speak english in class.（代詞） one-third of the students in this class are girls.（數詞） to swim in the river is a great pleasure.（不定式） smoking does harm to the health.（動名詞） the rich should help the poor.（名詞化的形容詞） when we are going to have an english test has not been decided.（主語從句） it is necessary to master a foreign language.（it作形式主語，真正的主語為后面的不定式）
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