Module 1 Deep South Section Ⅲ Grammar-主语和动词语法图解探究发现①Antarctica is the coldest place on Earth.②They call it AntiArktikos, or Antarctica ...③98%of the surface is covered permanently in the ice cap.④To learn a foreign language well is not easy. ⑤Swimming is a good exercise.⑥Whether he will come is doubtful.⑦It is difficultto imagine a more inhospitable place.⑧I hope to see you soon.⑨Hecame in and satdown.⑩The student went pale when he saw the teacher.⑪I can easily tell my father's step.⑫We hadn'twalked far when we lost our way.[我的发现](1)①～⑥句中的黑体部分在句中均作主语。(2)由④⑤⑥句可知，不定式、动词ing 形式、从句作主语时谓语动词通常要用单数形式。(3)⑦ 句中用 it 作形式主语。(4)⑧～⑫句中，黑体部分均为动词，且⑧⑨句中的动词可直接作谓语，而⑩ ⑪⑫ 句中的黑体部分不能单独作谓语。一、主语1．主语的概念及构成主语是一个句子叙述的主体，是句子所要说明的人或事物，表示句子描述的是“谁”或“什么”。主语通常由名词、名词化的形容词、代词、数词、动词不定式(短语)、动名词(短语)或从句等担当。词类例句名词The news is exciting.名词化的形容词 The disabledare well cared for in our country.代词None of us believed what he said.数词Onethird of the work has been finished.不定式To decide is to act.(决定即行动)动名词Watching a film is a pleasure.从句Whether he will leave is unknown.[即时演练 1](1)用所给词的适当形式填空①The children (child) are playing on the swings in the park.②In my opinion, swimming (swim) is more difficult than anything else.③Each of us (we) is different. ④Three fourths (threefourth) of the surface of the earth is sea.⑤To_teach (teach) the three children is my job this afternoon.(2)完成句子①What_he_said_at_the_meeting (他在会议上说的话) left a deep impression on me.②Drinking_a_cup_of_wine (喝杯葡萄酒) can make me feel relaxed.③It is difficult to_learn...
