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但是有些主語(yǔ)由于本身具有單數(shù)和復(fù)數(shù)兩種可能, 它的謂語(yǔ)到底用單數(shù)還是復(fù)數(shù), 要看具體的語(yǔ)境(多數(shù)情況是看其后面詞語(yǔ)的單復(fù)數(shù))：

1. a. Who is your brother? 誰(shuí)是你的兄弟?

b. Who are your brothers? 哪些是你的兄弟?

2. a. What he said is quite correct. 他所說(shuō)的完全 正確。

b. What he left me are only a few old books. 他 給我留下的只是幾本舊書(shū)。

4. 集合名詞作主語(yǔ), 謂語(yǔ)的數(shù)如何確定

1. His family ______ a small one.

2. His family ______ fat and short.

A. is, is                    B. are, are               C. is, are                  D. are, is

此題應(yīng)選C。family 是一個(gè)集合名詞, 具有單數(shù)(側(cè)重指整體)和復(fù)數(shù)(側(cè)重指?jìng)�(gè)體)兩種可能。 類(lèi)似這種用法的詞主要的有：team(隊(duì), 隊(duì)員), class(班, 班上的全體學(xué)生), crowd(人群), government(政府), crew(乘務(wù)員), committee(委員會(huì), 委員們), audience(聽(tīng)眾)等：

1. a. This class consists of 45 students. Mr Green

teaches it. 這個(gè)班45個(gè)學(xué)生, 由格林先生教。

b. This class are all diligent. Mr Green teaches them. 這個(gè)班的學(xué)生都很用功, 由格林先生教。

2. a. The team is the best in the league. 這個(gè)隊(duì)在 聯(lián)賽中打得最好。

b. The football team are having baths. 足球隊(duì)隊(duì) 員們?cè)谙丛琛?/SPAN>

3. a. It was late, but the audience was increasing. 時(shí)間很遲了, 但聽(tīng)眾人數(shù)卻在增加。

b. The audience were all moved to tears. 聽(tīng)眾都 感動(dòng)得流了淚。

但是并不是所有的集合名詞都具有以上兩種用法：

1. 有的集合名詞總是用作單數(shù)(不可數(shù))：clothing 衣服, poetry 詩(shī)歌, baggage / luggage 行李, furniture 家俱, machinery 機(jī)械, scenery 景色, jewellery 珠寶 等

2. 有的集合名詞總是表示復(fù)數(shù)意義(但不用復(fù)數(shù)形式)：

people 人, police 警察, cattle 牲口等

5. 這類(lèi)結(jié)構(gòu)的謂語(yǔ)應(yīng)與哪個(gè)主語(yǔ)保持一致

A library wit five thousand books ______ to the nation as a gift.

A. is offered             B. has offered          C. are offered          D. have offered

此題應(yīng)選A。用連詞and連接的兩個(gè)并列主語(yǔ), 其謂語(yǔ)要用復(fù)數(shù), 但是若主語(yǔ)后跟有with, like, but, except, besides, including, together with, along with, as well as, morethan, no less than, rather than等連接的另一個(gè)名詞, 其謂通常要與前面一個(gè)主語(yǔ)保持一致：

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