高中英語詞法專題定語從句精品教案
英語詞法專題講座十八:定語從句一、定語從句(一):1. 定語從句的概念: 在復合句中,修飾某一名詞或代詞的從句叫定語從句。2. 先行詞: 被定語從句修飾的名詞或代詞叫先行詞。3. 關系詞: 引導定語從句的連詞叫關系詞。如that、which、who、whom、whose、where、when等。4.由that、which、who、whom、whose引導的定語從句。關系詞指代在定語從句中的作用that既指人也指物作主語、賓語which指物作主語、賓語who指人作主語whom指人作賓語whose既指人也指物作定語二、定語從句(二)1. 先行詞是物時,一般情況既可用that也可用which. 但下列情況下,只能用that不用which。1). 當先行詞為指物的不定代詞,如all、everything、something、anything、nothing、none、the one等時,只能用that。there is nothing ______ i can do for you.2). 當先行詞被the only、the very、the last、all、no、little等詞修飾時,只能用that。this is the very book ______ i’m looking for.3). 先行詞被序數詞修飾時,只能用that。this is the first nextbook ______ i studied in the middle school.4). 先行詞為最高級或被最高級修飾時,只能用that。this is the most beautiful mountain ______ i have ever seen.=i have _____ seen _____ a beautiful mountian.5). 先行詞既有人也有物時,只能that。he told us many interesting things and persons _______ we had.2. 先行詞是物時,一般情況既可用that也可用which. 但下列情況下,只能用which不用that。1). 關系代詞前有介詞時,關系詞只能用which。this is the building in ______ he lives.2). 先行詞本身是that時,關系詞只能用which。the clock is that _____ tells the time.3). 引導非限定性的定語從句(先行詞是物且先行詞與關系詞用逗號隔開),關系詞用which。his book, ______ was lost last week, has been found now.3. 先行詞是人時,一般情況下既可用who 也可用that 。但以下情況下,只能用who。1). 當先行詞為those、one、ones、anyone且作主語時,一般用who。those ______ are singing are all my classmates.2). 在there be 句型中,先行詞指人時,只能用who。指物時用that。there is a girl ______ expects to see you.3). 當先行詞是i、you、he、they等時,只能用who。he ______ plays with fire gets burned.三、定語從句(三)。 由關系副詞when、where、why引導的定語從句。where = in / at +which when = in / on / at +which why = for + which 1. 由where引導的定語從句。1). 先行詞是表示地點的名詞 2). 在定語從句中作地點狀語is this the house ______ you lived? = is this the house _____ _____ you lived?= is this the house _____ you lived in?2. 由when引導的定語從句。1). 先行詞是表示時間的名詞 2). 在定語從句中作時間狀語i will never forget the days ______ i met him.