how相当于一个形容词,它是用来修饰句子中的动词的,句中的动词可以是及物动词也可以是不及物动词,但如果
是及物动词的话,其后要有名词;而what相当于一个代词,代指的是句中提问的名词,因此决定了句中的动词是一个及物动词。
简单说:
how
to
do
it
=
what
to do
一般呢,可以套用句型“how
to
do
it”“what
to
do”,也就是说如果是选择题或完型中,到底是选“what”还是“how”拿不准的话,那个“it”就是题眼,很关键了~记着这点,很管用的呢~
例如:I
don't
kown
what
to
do
noex.
I
don't
know
how
to
do
this.
希望你可以尽快区别开哦~
我不知道我该怎样帮助他=I
don't
know
how
to
help
him.
英语中how表示“怎样、如何”,常常用来提问表示状态、程度、方式等状语。
e.g.
1.
How
is
the
weather
today?-----It's
rainy
today.
(提问状态)
2.
How
do
you
go
to
school?
-----On
foot.
(提问方式)
3.
How
does
Liu
Xiang
ran?
----He
runs
very
fast.(提问动作的状态)
4.
How
often
do
you
have
PE?------Twice
a
week.
(提问频率)
英语中的what表示“什么”,常常用来对名词提问。
e.g.
1.
What
is
your
English
name?
2.
What
do
you
do
after
school?
3.
What
would
like
to
eat
this
evening?
how后面要加宾语
I
do
not
know
how
to
do
it
what后面不用
I
do
not
know
what
to
do