时间:2019-01-03 作者:英语课 分类:2018年VOA慢速英语(十)月


英语课

 


Many languages shorten 1 words in everyday speech. In English, we shorten a lot of words.


One way we do this is with contractions 3: two words joined with a special mark called an “apostrophe.” The apostrophe shows the reader where letters have been removed. For example, the words “is” and “not” can be combined to form the contraction 2 “isn’t.” There is a letter missing between the letters “n” and “t.”


Contractions are one of the most feared subjects for English learners. They usually do not enjoy writing or reading them. Many are unsure how to say them and often can't understand native English speakers when they use them.


This fear probably comes from questions about them. Learners are unsure of what the words mean, which letters were removed, how to spell them and where to put the apostrophe.


Some English learners are even unsure whether contractions are correct English. They hear them in films and songs and may think they are not grammatical 4.


In this Everyday Grammar program, we’ll try to answer those questions. (You may also remember an earlier program that shared some of the sounds of contractions.)


When and why use them?


We use contractions in speaking, informal writing and even some kinds of formal writing. They are, indeed, grammatical .


You might even see contractions in newspapers, such as The Washington Post, or on television. Yet we do not use contractions in very formal writing, such as in a college paper or a business letter.


Native speakers almost always speak with contractions unless they purposely choose not to in order to emphasize something . Compare these sentences:


I’m not tired.


I am not tired.


The first sentence seems to be a simple, factual statement. But if a native speaker uses the second one, they are likely emphasizing they are not tired. It makes a stronger statement.


Using contractions makes your English sound more natural, but English learners are not required to use them.


Getting to know contractions


But, since contractions are so widely used, it’s a good idea to know their mechanics 5. This will help reduce misunderstandings – and hopefully fear.


Number 1: Most contractions are some form of noun + verb.


The first word in a contraction is usually a pronoun and the second is usually an auxiliary 6 verb. Contractions combine these parts of speech:


pronoun + verb (as in “he’ll” meaning “he will” and “she’d” meaning “she would”)


noun + verb (as in “The book’s on the table”)


name + verb (as in “Anna’s going to a baseball game”)


verb + not (as in “aren’t” meaning “are not” and “shouldn’t” meaning “should not”) and


question word + verb (as in “Where’s the beef?” and “What’s that?)


Notice that most of these involve some form of noun + verb.


We can also make contractions with the words “this,” “that,” “here” and “there,” as in “This’ll only take a minute” and “There’s my phone!”


Number 2. Most verbs in contractions are auxiliary verbs.


You may recall from earlier programs that auxiliary verbs are helping 7 verbs. They help to give meaning or purpose to main verbs.


In the sentence “She’s leaving today,” the word “is” acts as an auxiliary verb and is part of the present continuous verb tense. The main verb is “leaving.”


Auxiliary verbs also include modal verbs (sometimes called “modal auxiliaries”), such as “should,” “can,” “could,” “must,” “will” and “would.”


Number 3. The verbs “be” and “have” act as auxiliary verbs in some contractions. In others, they act as main verbs.


In a statement like “She’s a teacher,” the word “is” in “She’s” is a main verb. But, in “She’s leaving today,” the verb “is” is an auxiliary verb and part of a verb tense.


Number 4. Affirmative contractions are never used at the end of a sentence. And affirmative contraction is a contraction that confirms a piece of information. Let’s hear an example:


A: Are you in the library?


B: Yes, I am.


The correct way to answer is, “Yes, I am,” not “Yes, I’m.”


Number 5. We do end statements with negative contractions. Listen to an example of someone answering a yes or no question:


A: Have you been to the new café yet?


B: No, I haven’t.


Number 6. Contractions with the verb be + negative can be made in two ways. To better understand this, let’s hear examples:


A: They’re not at the meeting place.


In this sentence, the contraction is they + are.


B: They aren’t at the meeting place.


In this sentence, the contraction is are + not.


The first way is more common than the second.


Number 7. Do not make “have” into a contraction when it is the main verb.


As I said earlier, the verb “have” can be either an auxiliary verb or main verb in contractions. But when a sentence uses “have” as the main verb, we do not shorten it.


For example, Americans would not say, “I’ve a cat,” to mean “I have a cat.” The British, however, do use this kind of contraction, although it is not as common as them saying, “I’ve got a cat” (which is not correct in American English).


To use or not…?


If you’d like to communicate more fluently and better understand the writing and speech of native speakers, it’s a good idea to understand contractions. We hope this program has helped reduce your fears. But practicing is the best thing you can do.


And remember: Don’t be afraid to make mistakes!


I’m Alice Bryant.


Words in This Story


emphasize - v. to give special attention to (something)


auxiliary - adj. available to provide help when it is needed


negative - adj. expressing denial 8 or refusal


practice - v. to do something again and again in order to become better at it



vt.弄短,缩小,减少
  • Minor accidents can shorten the life of a car.小事故会缩短汽车寿命。
  • My dress is too long I must shorten it.我的连衣裙太长了,我得把它截短些。
n.缩略词,缩写式,害病
  • The contraction of this muscle raises the lower arm.肌肉的收缩使前臂抬起。
  • The forces of expansion are balanced by forces of contraction.扩张力和收缩力相互平衡。
n.收缩( contraction的名词复数 );缩减;缩略词;(分娩时)子宫收缩
  • Contractions are much more common in speech than in writing. 缩略词在口语里比在书写中常见得多。 来自《简明英汉词典》
  • Muscle contractions are powered by the chemical adenosine triphosphate(ATP ). 肌肉收缩是由化学物质三磷酸腺苷(ATP)提供动力的。 来自辞典例句
adj.语法的,符合语法规则的
  • His composition is excellent except for some grammatical mistakes.他的作文写得很好,只有几处语法错误。
  • He can barely form a grammatical sentence.他几乎造不出合乎语法的句子。
n.力学,机械学;结构
  • The mechanics of fixing a car are very long.修理一部汽车的过程很长。
  • The mechanics of the machine are very old.这台机器的机件非常老。
adj.辅助的,备用的
  • I work in an auxiliary unit.我在一家附属单位工作。
  • The hospital has an auxiliary power system in case of blackout.这家医院装有备用发电系统以防灯火管制。
n.食物的一份&adj.帮助人的,辅助的
  • The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
n.否认;拒绝,拒绝给予
  • The newspaper printed a denial of the untrue story.报社刊登了否认不实消息的声明。
  • Her denial of my advice hurts me.她拒绝我的忠告伤害了我。
学英语单词
0917
access concentrator
always open
andis
angereb wenz
antilubricant
avarices
born-again Christian
by-fleke
C-suites
calcified sebaceous cyst of scrotum
canvas connecting strip
champale
change the original setence
circinella simplex
coal mine engineering exploration
conductive body
congenital adrenal hyperplasia (cah)
cornucoquimba miifeyi
counter cycle
crystal paradox
Decemberist
delayed response effect
desunt
development site
electric blasting
electrical operation
electron beam single crystal furnace
ergocalciferols
ethyl cyclohexane
ethylene propylene rubber
eudialytes
export technique
frohnmayers
gasteropod
general relativity theories
genus hydnocarpuss
give sb a trial
good visibility
Gothic sextant
granuloma pouch
have a night out
hayrigs
high pressure pipe lines
horse-litter
hybrid gravity type platform
hydraulic pile head splitter
impeller of booster
inter-correlations
interlending
interprimary frame
jason biggs
kary-
littoraria brevicula
mathemeg
medullo-
memory match
microcode memory
modulus of direct elasticity
monotungsten disilicide
morel's ear
multiple indirect addressing
multiple inductive shunt
multiple-pontoon landing stage
neighborhood grammar
nerello
nonallergen
nonfusibility
nonsymmetrizable
oil filter valve
optimality principle
phoning me
polarization potential
polyolefins
privileged procedure
program evalution and review technique
prostatic ducts
psdi
quadratic hypersurface
real cause
Recessus membranae tympanicae anterior
refractory pebbles
slept together
spencer tracies
spherical bend union
super-charged
systematics
Thorstein Bunde Veblen
thumb head
thuot
TOS us
treeifying
truck-mounted drill rig
tucetona auriflua
tundrite
unit normal variate
uroleucon (uromelan) lactucicola
vertical prestress
waily
white caps
winning posts
zanthoxylum planispinum s.et z.