Lesson4 Dream Houses-grammar學案
2. 若介詞放在關系代詞前,關系代詞指人時用whom,不可用who或者that;指物時用which,不能用that;關系代詞是所有格時用whose.3. “介詞+關系代詞”前可有some, any, none, both, all, neither, most, each, few等代詞或者(四)判斷關系代詞與關系副詞 方法一: 用關系代詞,還是關系副詞完全取決于從句中的謂語動詞。不及物動詞后面無賓語,就必須要求用關系副詞或者是介詞加關系代詞;而及物動詞后接賓語,則要求用關系代詞。方法二: 準確判斷先行詞在定語從句中的成分(主、謂、賓、定、狀),也能正確選擇出關系代詞/關系副詞。(五)關系代詞that 的用法(1)不用that的情況 (a) 在引導非限定性定語從句時。(錯)the tree, that is four hundred years old, is very famous here. (b) 介詞后不能用。 we depend on the land from which we get our food. we depend on the land that/which we get our food from.(2) 只能用that作為定語從句的關系代詞的情況 (a) 在there be 句型中,只用that,不用which。 (b) 在不定代詞,如:anything, nothing, the one, all, much, few, any, little等作先行詞時,只用that,不用which。 (c) 先行詞有the only, the very,the same,the last,just修飾時,只用that。(d) 先行詞為序數詞、數詞、形容詞最高級時,只用that。. (e) 先行詞既有人,又有物時。(f) 先行詞指物,在主句中作表語時.(g) 為了避免重復.(h)先行詞是the way時(六)as,which引導的非限定性定語從句 由as, which 引導的非限定性定語從句,as和which可代整個主句,相當于and this或and that。as一般放在句首,which在句中。 1)as we know, smoking is harmful to one's health. 2)the sun heats the earth, which is very important to us.