外研版九年級英語上冊Module 12同步教案
如果這類名詞前用了a pair of等量詞,則謂語動詞的單復數形式往往取決于pair的單復數形式。例如:
here are some new pairs of shoes.
my new pair of socks is on the bed.
2. 意義一致的原則
(1)表時間、距離、價格、度量衡等的名詞作主語時,謂語動詞通常用單數。例如:
twenty years is not a long time.
ten dollars is too dear.
(2)有些集合名詞,如family, team,class等作主語時,如作為一個整體看待,謂語動詞用單數;如指其中的每一個成員,則謂語動詞用復數。例如:
my family is a big one.
my family are watching tv.
(3)由不定代詞all, most, more, some, any, none等作主語時,也要依照這些不定代詞所表示的意義來決定謂語動詞的單復數形式。如果不定代詞代表復數可數名詞,則謂語動詞用復數;如果所代詞代表單數可數名詞或不可數名詞,則謂語動詞用單數。例如:
all of the work has been finished.
all of the people have gone.
(4)“分數或百分數+of+名詞”構成的短語作主語時,其謂語動詞要以of后的名詞而定——名詞是復數,謂語動詞用復數;名詞是單數,謂語動詞用單數。例如:
it is said that 35 per cent of the doctors are women.
three –fourths of the surface of the earth is sea.
(5)half, the rest等表示不定數量的名詞作主語時,如果所指內容為復數意義,謂語動詞用復數;如果所指內容為單數意義,謂語動詞用單數。例如:
i have read a large part of the book, the rest is more difficult.
only ten students attended the class because all the rest were off sick.
(6)由what 引導的主語從句作主語時,謂語動詞通常用單數。例如:
what she said is correct.
(7)凡以“定冠詞+形容詞(或分詞)”作主語時,往往根據意義一致的原則決定謂語動詞的單復數形式。如果這種主語指的是一類人,則謂語動詞用復數;如果這種主語指的是一個人或抽象概念,則謂語動詞用單數。例如:
the sick have been cured and the lost have been found.
the dead is a famous person.
3. 鄰近一致的原則
(1)由連詞or, either…or, neither…nor, not only…but also等連接的并列主語,如果一個是單數,一個是復數,則謂語動詞的單復數形式按鄰近一致的原則決定,即與最靠近它的主語一致。例如:
either you or i am right.
neither the children nor the teacher knows anything about it.
(2)在“there be” 句型中,謂語動詞的單復數形式和最靠近其的主語一致。
there are two apples and one egg in it.
(3)以here開頭的句子,其謂語動詞的單復數形式和最靠近其的主語一致。
here is a letter and some books for you.
【考題鏈接】how time flies! ten years ________ passed.
a. have b. has c. is d. are
答案:b
解題思路:該題考查主謂一致。ten years通常被看作是一個時間整體,故謂語動詞用單數形式,選b。
[即學即練]
1. —two months _______ quite a long time.
—yes. i’m afraid that he will miss a lot of lessons.
a. is b. are c. was d. were