2022年高考英語二輪總復(fù)習(xí) 第11講 名詞性從句學(xué)案
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2022年高考英語二輪總復(fù)習(xí) 第11講 名詞性從句學(xué)案
2022年高考英語二輪總復(fù)習(xí) 第11講 名詞性從句學(xué)案1. It is uncertain _ side effect the medicine will bring about, although about two thousand patients have taken it. (xx浙江卷) A. that B. what C. how D. whether 【答案及解析】1. B考查主語從句引導(dǎo)詞。句意:這種藥將會帶來什么樣的副作用還不確定,雖然已有大約兩千人在吃這種藥。it為形式主語,_ side effect the medicine will bring about為真正的主語。還原句子: the medicine will bring about_ side effect,side effect前缺少一個修飾詞,故用what。2. Is there any possibility _ you could pick me up at the airport? No problem. (xx浙江卷) A. when B. that C. whether D. what【答案及解析】2. B考查同位語從句的引導(dǎo)詞。句意為:“你有可能到機場來接我嗎?”“沒問題。”you could pick me up at the airport是possibility的具體內(nèi)容,故是同位語。又因這個從句不缺任何句子成分,故用that引導(dǎo)。引導(dǎo)名詞性從句的連接詞 名詞性從句相當(dāng)于名詞,可分別作主句的主語、表語、賓語和同位語。因此,名詞性從句分為主語從句、表語從句、賓語從句和同位從句。1連接代詞:who, whose, whom, what, which。有詞義,在從句中充當(dāng)成分,如主語、表語、賓語或定語等。2連接副詞:when, where, why, how。有詞義,在從句中充當(dāng)成分,作狀語。3連接詞:that, whether, if, as if。that 無詞義,在從句中不充當(dāng)成分,有時可省略;if (whether), as if雖有詞義,但在從句中不充當(dāng)成分。注意:名詞性從句的語序陳述語序他是怎么成功的仍然是個謎。How was he successful is still a puzzle. (×)How he was successful is still a puzzle. ()主語從句的用法1主語從句在復(fù)合句中作主語。如:Who_will_go is not important. 2用it作形式主語,主語從句放在句末。如:It doesn't matter so much whether_you_will_e_or_not. 3that引導(dǎo)主語從句時,不能省略。如: That_he_suddenly_fell_ill_last_week made us surprised. 表語從句的用法1表語從句在復(fù)合句中作表語,位于系動詞之后。如:The question was who_could_go_there. 2引導(dǎo)表語從句的連接詞that有時可省去。My idea is (that)_we_can_get_more_rades_to_help_in_the_work. 賓語從句的用法 1賓語從句在復(fù)合句中作賓語。引導(dǎo)賓語從句的連詞that一般可省略。如:I hope (that) everything is all right. 2介詞之后的賓語從句,不可用which或if連接,要分別用what或 whether。如:I'm interested in whether you've finished the work. 同位語從句的用法同位語從句在句中作某些抽象名詞的同位語,說明該名詞的具體內(nèi)容。這類抽象名詞有:I have no idea when he will be back. The fact that he had not said anything surprised everybody. 易錯易混點1whether與if的區(qū)別 (1)只能用if的情況 賓語從句是否定句時,只用if,不用whether。 如: I wonder if it doesn't rain. 引導(dǎo)條件從句時,只能用if,而不能用whether。如: Please e to see me if_you_have_time. (2)只能用whether的情況 用if 會引起誤解,就要用whether。如: Please let me know whether you want to go. (此句如果把whether改成if,容易當(dāng)成條件句理解) 賓語從句中的whether 與or not直接連用,就不能換成if;不直接連用,可換。如: I don't know whether_or_not the report is true. I don't know whether/_if the report is true or not. 介詞后的賓語從句要用whether引導(dǎo)。whether 可與不定式連用。whether也可引導(dǎo)主語從句、表語從句、同位語從句,還可引導(dǎo)讓步狀語從句,以上均不能換成if。如: It depends on_whether we have enough time. They don't know whether_to_go there. 2名詞性從句中主句和從句的主謂一致 (1)主語從句作主語相當(dāng)于單數(shù)第三人稱作主語,謂語動詞用單數(shù)。 (2)如果由and 連接兩個或兩個以上的主語從句作主語時,謂語動詞用復(fù)數(shù)。 (3)由兩個或多個連接詞引導(dǎo)一個主語從句,謂語動詞用單數(shù)。 When_they_will_start_and_where_they_go have not been decided yet. When_and_where the party will be held has not been decided yet. 3. 疑問詞 ever 和 no matter 疑問詞的區(qū)別 (1)疑問詞 ever可引導(dǎo)名詞性從句,在主從句中要充當(dāng)一定的成分。如: Whoever breaks the rule must be punished. (作主語) (2)疑問詞 ever還可引導(dǎo)讓步狀語從句。如: Whoever breaks the rule, he must be punished. (3)no matter 疑問詞只能引導(dǎo)讓步狀語從句。 No_matter_who breaks the rule, he must be punished. 4. 同位語從句和定語從句的區(qū)別 定語從句是先行詞的修飾語,它不涉及先行詞的具體內(nèi)容。定語從句中that起連接作用,且充當(dāng)句子成分,作賓語時可省略。 同位語從句表明中心詞的具體內(nèi)容。that在同位語從句中不作任何成分,只起連接作用,無具體含義,且不可省略。如: We expressed the hope that_they_had_expressed. (定語從句) We expressed the hope that_they_would_e_toChina_again. (同位語從句)5. it作形式主語的常用句型 It is possible/important/necessary/clear/true that很可能/重要的是/必要的是/很清楚/很對 It is said/ reported/believed that據(jù)說/據(jù)報道 It has been announced/declared that已經(jīng)通知/宣布 It seems/appears/happensthat似乎/顯然、明顯/碰巧 It is no wonder that并不奇怪/無疑 It's a pity/a shame/a good idea/a fact/mon knowledge (眾所周知)/a mon saying (俗話說)