是can never还是never can?傻傻分不清楚
频率副词告诉我们某件事在以前,现在以及未来发生的频率,比如always、often、usually,这些都是频率副词,那么该怎么用呢?
always:
Peter is always getting into trouble.
彼得总是遇到麻烦。
usually:
They usually get their work done on time.
他们通常按时完成工作。
frequently:
My sister frequently goes shopping in Seattle.
我妹妹经常去西雅图购物。
rarely:
They rarely ask questions about the homework.
关于家庭作业他们很少提问。
频率由高到低:
always:总是
He always does his homework.
他总是完成作业。
usually:通常
They usually complete the work on time.
他们通常按时完成工作。
often:经常
I often watch movies online.
我经常在网上看电影。
sometimes:有时候
Jack sometimes comes over for dinner.
杰克有时会过来吃饭。
occasionally:偶尔
She occasionally asks a question.
她偶尔会问一个问题。
rarely:很少
They rarely have any homework.
他们很少有作业要做。
never:从不
I never complain at work.
我在工作中从不抱怨。
那么,频率副词在句中应该放在什么位置呢?我们来看看下面的规则:
如果句子中有一个动词(例如没有助动词),我们通常将副词放在句子的中间,即在主语之后,动词之前:
subject / adverb / verb / predicate
主语/副词/动词/ 谓语
Tom usually goes to work by car.
汤姆经常开车去上班。
Mary often asks me for help.
玛丽经常请我帮忙。
频率副词通常放在“be”动词之后:
subject /be verb / adverb / predicate
主语/be动词/副词/谓语
Tom is often late.
汤姆经常迟到。
Anne isn't usually sick.
安妮通常不怎么生病。
Peter isn't always right.
彼得并不总是对的。
如果我们将频率副词放在句子的开头或结尾表示强调,则情况并非如此。而且此规则也不适用于简短回答:
Is she usually on time?
她通常准时吗?
Tell her not to be late.
告诉她不要迟到。
Yes, she usually is.
是的,她通常是。
She never is.
她从来不。
如果句子中有多个动词(例如助动词),我们通常将频率副词放在第一个动词之后:
subject / helping verb or modal / adverb / main verb / predicate
主语/助动词或情态动词/副词/主动词/谓语
I can never forget his name.
我从来都不会忘记他的名字。
Anne doesn't usually smoke.
安妮通常不抽烟。
The children have often complained about the playground facilities.
孩子们经常抱怨游乐场的设施。
例外:
在含有“have to”的句子中,频率副词位于所有动词之前:
subject / adverb / have to / main verb / predicate
主语/副词/have to/主动词/谓语
We often have to wait for the bus.
我们经常要等公共汽车。
She never has to do any housework.
她从不做任何家务。
为了表示强调,我们可以将频率副词放在句子的开头或结尾。
首先,把它放在最后是很少见的。我们通常只在我们忘记把它放在开头时才把它放在结尾。
adverb / subject / main verb / predicate
副词/主语/主动词/谓语
Sometimes we go to school by bus.
有时候我们乘公共汽车上学。
Often he waits for her after class.
他经常在课后等她。
subject / main verb / predicate / adverb
主语/主动词/谓语/副词
We go to school by bus sometimes.
我们有时乘公共汽车去学校。
They like to watch TV often.
他们经常喜欢看电视。
例外情况:
“Always” 不能放在句子的开头或结尾。
“Never”,“seldom”,“rarely”不能放在句子结尾。他们只用于“陈述”的句子开头。然后他们必须遵循疑问句的词序:
Never has there been a better time to overcome our differences.
从未有过比这更好的时机来克服我们的分歧。
Rarely do we have an opportunity like this.
我们很少有这样的机会。
在疑问句中使用频率副词时,请将副词放在主动词之前:
auxiliary verb / subject / adverb / main verb / predicate
助动词/主语/副词/主动词/谓语
Do you often go to the cinema?
你常去电影院吗?
Do they usually come late to class?
他们经常上课迟到吗?
例外:
“Never”,“seldom”,“rarely”以及带有否定含义的其他频率副词通常不会在疑问句中使用。
当在否定句中使用频率副词时,请将频率副词放在主动词之前:
Subject / helping verb / adverb / main verb / predicate
主语/助动词/副词/主动词/谓语
They don't often go to the cinema.
他们不经常去电影院。
Peter doesn't normally want to come with us.
彼得通常不想和我们一起来。
你用错过频率副词吗?