专题技能突破(22)写作基础篇——句子成分之主语【技能讲解】 主语是句子的主体，是句子要说明的人或事物，表示句子描述的是谁或什么。主语通常由名词、代词、数词、名词化的形容词、动词不定式、动名词或从句等充当。典例剖析1.[2015·课标全国卷]The_“Foreign_Cultures”_section in our newspaper is very popular among us students.
[答案] The “Foreign Cultures” section(外国文化栏目)，名词作主语。句意：我校校报中的“外国文化”栏目在我们学生中颇受欢迎。
2．[2015·江苏高考]It is everybody's duty to_observe_the_rules to keep our society in order and going on the right track.
[答案] it作形式主语，动词不定式to observe the rules(遵守规则)作真正的主语。句意：为了使我们的社会井然有序，遵守规则是我们每个人的责任。
技能点拨 可以变化使用动词不定式、动名词或主语从句作主语，避免句子形式单一。如果主语只是一个名词，可以在名词前增加修饰、限定的形容词来为句子增添亮点，如fantastic scenery, effective method等。
技能演练
补全句子
1．____________________________(参加体育运动和户外活动) is really helpful to build up my body and enrich my school life.
答案：Taking part in sports and outdoor activities
2．It is common for one language_________________________ (从别的语言借词)．
答案：to borrow words from other languages
3．______________________________________________(我们最喜爱的)is the time we enjoy the full moon together.
答案：What we love most
4．________________________________________________(禁止我们学生走出校园)has raised a storm of objections.
答案：Forbidding us students to go out of the campus
5．It is no use ___________________________________(通过武力解决问题) .
答案：trying to solve the problem by force
6．________________________________________________(实现我们的目标)is always not easy, but if we have a strong will, we are sure to realize them.
答案：Achieving our goals