分类：教育/科学-升学入学-高考
问题：选择题，最好分析清楚！！Thesungivesofflighta 
The sun gives off light and heat，______mas it possible for plants to grow。A.  thatB.  asC.  whatD.  which_____Good morning。Can I help you?_____I’d like to have this package______，mamam。A.  be weighedB.  weighC.  to weighD.  weighedThe guide ______theyThe sun gives off light and heat，______mas it possible for plants to grow。A.  thatB.  asC.  whatD.  which_____Good morning。Can I help you?_____I’d like to have this package______，mamam。A.  be weighedB.  weighC.  to weighD.  weighedThe guide ______they climbed the mountain was a patient man。A.  with whom helpB.  with whose helpC.  whose helpD.  the help of whomWhat we have seen is different from_______。A.  we heardB.  we have heardC.  what we heard D.  what we have heard
回答：1.D。此句型为非限制性定语从句。答案which指代"the sun gives off  light and heat".2.D。 sth和 ne是平常练习经常遇到的两个考点。" sth."意思是让sb.做sth.例如:Theteacherhadthestudentsrecethelongpassages." ne"意思是sb.让别人(不是sb.)处理sth.例如:HebrokenmyCDplayercarefullessly,soIhadtohaveitrepaired.。因此第二题中第二句要表达的意思是“我打算让你帮我称以下这个包裹”。3.B。先分析以下正确答案B。with one's help 或with the help of sb.是“在某人的帮助下”的正确表达。其次因为要作the guaid的后置定语，因此用了whose。在来看一下其他各选项。A项若去掉 help也是对的；C项4若加上 with 也是对的；D项好象不能套用这个词组。4.D。选项D中what引导的名词性短语在这个句中做介词from的宾语。具体分析如下：首先，from为介词，其后应该接名词或名词性短语。因此可知AB项错误。其次，hear在see之前，既然see已经用了现在完成时，那么hear也应该用现在完成,因此C项也是错误的。答案非D莫属。不知我的分析是否令你感到满意？