新概念英語(三) lesson4(2)倍數表示法及be worth句法分析等補充語法
1. He will be earning only half as much as he used to, but he feels that his rise in status is well worth the loss of money.他將來掙的錢只有他現在的一半。不過他覺得，地位升高了，損失點兒錢也值得。
(1)) earning only half as much as he used to,掙的錢只有他現在的一半
half / a quarter / twice / three times + as...as... 表示倍數
-- I won't marry a man who is twice as old as me.
-- We got three times as many people as we expected.
-- This room is about three times as large as that one.
(2) 是...的幾倍：...as +形容詞或副詞原形+ as...
(3) 比...多幾倍：...times +形容詞或副詞比較級+ than…
-- This road is four times longer than that one. 這條路是那條路的5倍長。
= This road is five times as long as that one.
常見常考類似的與“倍數”表達法有關的表還有：
【1】"A + be + 倍數 + the + 計量名詞 + of + B "。 例如：
A friend of mine was making twice the salary of college instructors during her first year in that company.我的朋友在那個公司工作的第一年掙的錢就已經是大學教師薪水的兩倍了。
The aeroplane will travel at twice the speed of sound. 這架飛機的速度將是音速的兩倍。
That man is twice my weight. 那個男子的體重比我重一倍。
One month later, we will receive an order for the same product, but three times the quantity. 但一個月後，我們又接到同樣的訂單，而且要原來三倍的量。
Our school is four times the size of yours. 我們學校有你們學校的四倍大。
【2】"The + 計量名詞 + of + A + be + 倍數 + that + of + B " 。 例如：
In tight turns , the force it can pull is ten times that of gravity. 在急轉彎時，它的拉力能達到重力的10倍。
【3】表示增長的倍數比較關係可以用“動詞 + by + 數詞/百分比/倍數”來表達。例如：
six times the size（height，length，width，speed, output, weight, number, amount, quantity）
Indian’s population has been growing by 2.2 percent a year.印度的人口一直在以每年2.2%的速度增長。
【4】…times+what+從句
The production is now three times what it was ten years ago.現在的產量是10年前的三倍。
The output is now six times what it was before liberation.現在的產量是解放前的六倍。
【高頻語法難點把握】
2. his rise in status is well worth the loss of money.地位升高了，損失點兒錢也值得。
=What he obtained is well worth the loss of time. 他的所得是值得花時間的。
well 副詞用來加強語氣, 修飾形容詞worth
worth的五個用法要點
要點一：(be) worth後接動詞時，必須要用動名詞形式，不可用不定式。這類結構在現代英語中也可改用形式主語it，
犯不上跟他們生氣。
✘They are not worth to get angry with.
✔They are not worth getting angry with.
析：如上面的誤句也可改為：
It isn’t worth getting angry with her.
再如：The film is worth seeing. / It is worth seeing the film.(這部電影值得看)。
要點二：(be) worth 後接動名詞時必須用主動形式，即使該動名詞與主語是動賓關係，具有被動意義，也不能按中文思維，想當然的用被動式。
這部影片很不錯，值得再看一次。
✘The film is excellent.It’s worth reading a second time.
✔The film is excellent. It’s worth being read a second time.
要點三：worth 後接動詞時要用動名詞，但是注意這類結構有兩個特點：
這家圖書館值得你去看看。
✘You are worth visiting the library.
✔It is worth your while visiting [to visit] the library.
例句分析：
①句子主語通常就是其後動名詞的邏輯賓語；
②若句子主語不是其後動名詞的邏輯賓語，那麼其主語就應是形式主語 it。
另外注意：與 worth 後接動詞必須用動名詞不一樣，worth (one’s) while 後接動詞時可用動名詞也可用不定式(且這類句型的主語通常是形式主語 it）。
要點四：要加強worth的語氣，習慣上不用 very，而通常用 well。
他們上個月簽下的這個項目很值得一試。
✘The program they made last month is very worth a try.
✔The program they made last month is well worth a try.
要點五：表示價值時，value＝價值(是名詞)，和valuable＝有價值的(是形容詞)，兩者均不能後接 what從句，只可以用be worth句式。
這部日本造的手機不值你付的那些錢。
✘The mobile phone made in Japan is not value [valuable] what you paid.
✔The mobile phone made in Japan is not worth what you paid.
一、 有關“倍數”表達法基礎演練:
1. 他的手有孩子手的四倍大小。
2. 他們的屋子大約是我們的三倍大小。
3. 資費一般是固定電話的2到4倍。
一、“倍數”練習基礎練習參考答案：
1. His hands, four times as large, reached out slowly and held them as though they were holding up two tiny birds.
2. Their house is about three times as big as ours.
3. The fee is typically two to four times as much as for calls made over fixed lines.
二、 有關“倍數”表達拔高演練:
1. 這個熱電站比那個熱電站大三倍。
2.鐵的重量幾乎是鋁的三倍。 3. 新擴建的廣場為以前的四倍大。
二、”練習基礎練習參考答案：
1. This thermal power plant is four times larger than that one.
2. Iron is almost three times as heavy as aluminum.
3. The newly broadened square is four times the size of the previous one.
三、有關“倍數”表達法基礎演練:
（ ）1.—Will your mother______ you if you______ the English exam?
—Of course not. Because I am trying my best.
A. be angry with, don't pass
B. be angry with, won't pass
C. be angry to, don't pass
D. be angry to, won't pass
（ ）2.Listen! Some of the girls __________ about Harry Potter . Let's join them!
A.are talking B. talk
C. will talk D. talked
（ ）3.Our teacher , Miss Chen, _______ English on the radio the day before yesterday.
A. teaches B. taught
C. will teach D. had taught
（ ）4.I don't think I __________ you in that dress before.
A. have seen B. was seeing
C. saw D. see
（ ）5. She will have a holiday as soon as she ___________ the work next week.
A. finishes B. doesn't finish
C. will finish D. won't finish
（ ）6.---Where is Mr Green now ? I haven't seen him for a few days.
---He ___________ to Hong Kong.
A. goes B. will go
C. is going D. has gone
（ ）7. When she was 22 years old, her dream to be a teacher ____________.
A. came true B. come true
C. came real D. come real
（ ）8.-I won't come to the party unless Sue ______, too.
-You mean if Sue comes you'll come?
A.will invite B. invites
C. invited D. is invited
（ ）9.-Do you still have a headache, Billy? -No, it's ______. I'm all right now, mum.
A .dropped B. run C. left D. gone
（ ）10.-What are on show in the museum? -Some photos ______ by African children.
A. are taken B. were taken
C. taken D. have been taken
（ ）11.A talk on Chinese history ___ in the school hall next week.
A. be given B. has been given
C. will be given D. will give
（ ）12. You may go fishing if your work ____________.
A. is done B. will be done
C. has done D. have done
（ ) 13. The Olympic Games, first celebrated in Athens in 1896, every four years _______so far this century, except during the two world wars.
A. are held B. were held
C. have been held D. had been held
參考答案：
時態綜合訓練
1.A be angry with 意思是"同------生氣"；含條件狀語從句的複合句中，主句是將來時，從句一般用現在時。
2.A "Listen!"表明動作正在進行。
3.B the day before yesterday是一般過去時態的標誌。
4.A 副詞before一般與完成時態連用。
5. A 含時間狀語從句的複合句中，主句是將來時，從句用現在時。
6. D has gone用於指"去某地了"（現在不在說話的地方）。
7. A come true意思是"成為現實"。主從句動詞時態應該一致。
8. D 根據上下文意思，邀請的人不是Sue，"Sue"和"I"都是被邀請的對象，所以要用被動語態。
9.D 說"病好了，症狀消失了"多用"be gone"。
10.C 根據句子結構，"Some photos"不是句子的主語，所以A、B、D三個用作謂語的動詞不能用在這裡。"taken"這裡是"過去分詞"，連同後面的詞，一起作"Some photos"的定語。
11.C 主語是"A talk"決定了動詞用被動語態，next week決定了要用將來時態。
12. A 主語是work, 又依語言環境用現在時。
13.A.奧運會作主語應用被動語態，敘述一般事實要用一般現在時。
閱讀更多 大嘴英 的文章
