做非谓语动词的题时,我总是由于出现一个分句而多了个and或者“,”时判断是否少谓语动词而犯错.我们老师总说不要夸大逗号的作用,大家是怎么理解这句话的呢现打出我的错题：①Thecountry

Question

做非谓语动词的题时,我总是由于出现一个分句而多了个and或者“,”时判断是否少谓语动词而犯错.
我们老师总说不要夸大逗号的作用,大家是怎么理解这句话的呢
现打出我的错题：
①The country has already sent up three unmanned spacecraft,the most recent _ at the end of last March.
A.has been launched B.having been launched C.being launched D.to be launched
此题选B,我错选A.求分析.（'',''无法连接两个句子,故不能再次出现谓语动词?）
②It is worth considering what makes''convenience''foods so popular,and _ better ones of your own.
A.introduces B.to introduce D.introducing D.introduced
此题选C,我错选A.求分析.（and并列了worth后的两个动名词?）
③_ the website of the Fire Department in your city,and you will learn a lot about firefighting.
A.Having searched B.To search C.Searching D.Search
此题选D,我错选D.求分析.
④Pressed from his parents.and _ that he has wasted too much time,the boy is determined to stop playing video games.
A.realizing B.realized C.to realize D.being realized
此题选A.求分析（and并列两个状从）
高考还有184天,英语是我硬伤,
依旧等待解决ing.2013年12月8日 23:27:29

Answer 1

①The country has already sent up three unmanned spacecraft, the most recent _ at the end of last March.
A.has been launched B.having been launched C.being launched D.to be launched
此题选B,我错选A.求分析.（'',''无法连接两个句子,故不能再次出现谓语动词?）
权威英语语法答案解析：
分句（1） The country has already sent up three unmanned spacecraft
这个国家已经发射了3个无人驾驶的宇宙飞船
分句（2）the most recent ____ at the end of last march
分句（1）与分句（2）从间,即没有并列连词,也没有从属连词,那么分句（2）一定是做分句（1）的状语,即非谓语做状语的用法了,因此不能选择答案A 啊,故答案为B ,用现在分词的完成时形式表达.由于是被动语态,因此需要用having been done , 而不是having done
②It is worth considering what makes''convenience''foods so popular,and _ better ones of your own.
A.introduces B.to introduce D.introducing D.introduced
此题选C,我错选A.求分析. （and并列了worth后的两个动名词?）
③_ the website of the Fire Department in your city,and you will learn a lot about firefighting.
A.Having searched B.To search C.Searching D.Search
此题选D,我错选D.求分析.
④Pressed from his parents.and _ that he has wasted too much time,the boy is determined to stop playing video games.
A.realizing B.realized C.to realize D.being realized
此题选A.求分析（and并列两个状从）

高考还有184天,求各位大师详细分析下!英语是我硬伤,谢谢了!