时间:2018-12-19 作者:英语课 分类:2018年VOA慢速英语(十一)月


英语课

 


If you can write or speak even just a little English, you have surely used prepositions 2 -- words like "to," "in," "on," "at" and "by." A preposition 1 is a word or group of words that shows direction, location or time. Today on Ask a Teacher, we have a question about one such word.


Question:


Hi, I'm Frank 3 John from Tanzania. I don’t how know to use "by" in a sentence. –Frank John, Tanzania


Answer:


Hello Frank!


It sounds like you know the meaning of “by” but are unsure of how to use it with other words. Let me try to help!


“By” is usually a preposition but sometimes acts as an adverb. It can be used in many ways, but today we will talk about four uses as a preposition and show you where it is placed in a sentence.


Close to / Next to


Let's start with using “by” to show place or location. When we use "by" this way, it means "close to" "next to" or "beside." Here are two examples. Note that “by” comes before the place.


Meet me at the show! I’ll be seated by the door.


The university is by the sea.


Past a place


Now for the second use. When “by” is placed after motion-related verbs -- like "run," "drive," and "walk" -- it often shows movement past a place. Let’s listen:


I walked by the river on Sunday. It was a beautiful day!


Did you drive by my building today? I thought I saw you.


Not later than


Another way we use “by” is to talk about time on a clock. When we use it this way, it means “not later than.” The word “by” comes before the time. Have a listen:


Your appointment is at 1:00. Please arrive by 12:45.


We should leave by 7:00 to beat the crowds.


Alone / Without help


The last use we will consider today is about doing something alone or without any help. We make this meaning with “by” followed with a reflexive pronoun 4, such as "myself" or "yourself."


Here are two examples:


He moved the heavy table all by himself.


I’m sorry, I couldn’t go. Did you go by yourself?


And that’s Ask a Teacher.


I’m Alice Bryant.


Words in This Story


location – n. a position or place


adverb – n. a word that is often used to show time, manner, place, or degree


reflexive – adj. showing that the action in a sentence happens to the person or thing that does the action



1 preposition
n.介词
  • You should cancel this preposition in the sentence.你应该删去句子中的这个介词。
  • We use different preposition to talk about time,days,months and seasons.我们用不动的介词来谈论时间,日,月和季节等。
2 prepositions
n.介词( preposition的名词复数 )
  • She lays a lot of emphasis on the usage of prepositions. 她把重点放在介词的使用上。 来自《简明英汉词典》
  • Prepositions and conjunctions are particles. 介词和连词是小品词。 来自《简明英汉词典》
3 frank
adj.坦白的,直率的,真诚的
  • A frank discussion can help to clear the air.坦率的谈论有助于消除隔阂。
  • She is frank and outgoing.她很爽朗。
4 pronoun
n.代词
  • The relative pronoun is often dropped if it is the subject.关系代名词做受词时常被省略。
  • Here you should use plural pronoun.这里你应该用复数代词。
学英语单词
absolute aerodynamic ceiling
administration system
alienation test
alphameric field
autosmia
Balabalangan, Kep.
Bantingize
benzoyltrifluoroacetone
blendeth
breadth molder
brick-tea
brothelling
castellites
close-slots combination
combined ratio
community sentence
contracts-out
Corydalis rheinbabeniana
cosmetic dermatitis
decibel above reference noise
diastematorrhinia
drafting tables
dry path
educational counseling
emergency coupling screw
emerys
endostome
fatty alcohol sulfonate
ferrosilicons briquets
flat deposit
folcinis
foothill problem
genus alsophilas
haul round
hemangioma cutis
hesperiid
hexagonal hemihedralholoaxial class
hot heat
injury severity score
insidon
interval series
Knrunegala ulcer
koettlitz gl.
lamprophyllite
laraki
laser correlation spectroscopy
matrix element in beta decay
medicae
membranous atresia of anus
mezzanomycin
microlepia krameri
monoclon
muscalmon
mythologizable
oil tank wagon
packaged rotary drum dryer
parapsoriasis retiformis
Pauldopia
periprocedural
pilot-parachute
pneumatic operation
post-mortuary
postconventional
potassium magnesium bicarbonate
preparation-ointment
proman
punchdrunk
radar cross-section (rcs)
rate of circulation
Rauland
re-key
read, burst
right wing gear
Rugby School
sealing force
service hoisting
shit-house
sinker drill
slow lemur
Spp1
steel-lined
step-vein
stockroom
store-space
surface waviness recording instrument
tfac
thermochronological
three-stage rocket
tie-and-dye
travel limit switch
tsars
two-way analysis of variance
umbrella gingham
vapor-liquid separator
volumetrical filling machine
wapps
water-proof wire
water-rug
weighs
who laughs last laughs best
wired-in
Zu-Zu