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
Acer oligocarpum
acid-resisting centrifugal pump
aerodynamic stea1thy technique
anomalous complex
antithrombus
bieste
born-
BP,B.P
bs7799 lead auditor
calibrater
carnalizing
cement grout
chocolate powder
Chroococcaceae
Chunskiy
comfortss
compitor
complexing power
cough lolly
crossover clamp
current selected switch
customize toolbox
dcf formatter
deboarding
decennial index
decontaminates
difference number
diffuse choroidal sclerosis
digitalis luteas
dm.
enthralldom
epidemiological surveillance
extent of decomposition
family Cuterebridae
full milk
full page
gas x-ray tube
geocoronas
Harlan County Lake
heart of gold
highbush blueberries
HKND
injury of medial collateral ligament of knee joint
integrated operations
intramedullary lipoma
Izembek National Wildlife Range
k-series
Komagvær
koomkie
leadbeaters
left linear grammar
liquidness
local clock
log-magnitude curve
long after
manats
mightna
mimic panel
model airport
multivalued function
neuroactivity
Ni-Al gyromagnetic ferrite
nonvillains
nullable
obliges
Oliver County
opacitas
overlapping area
oxymorphine
partial retraction
pistacia lentiscuss
population study
pulmonary stretch reflex
rate-payer
remco
rempare
retrievable
Rutinon
Schuermann cupola
semivariable overhead
shyobunone
single-circuit hydraulic transmission
skimmer shovel
slipping bar composite support
standard construction
status agreement
stress optic law
sub-set
superpol
synchronous construction
tanabus
thallium monoxide
total porosity
tungsten nickel
union blanket
United States Customs Court
ventri-dorsal
vitaminological biochemistry
widex
wortlore
xingsaoite
yellow wax