Question

英语词性转换

give名词speak名词
know名词enter名词
operator动词
informa名词
invite名词decided名词
win名词live名词
widen形容词
care名词，形容词，副词
thank形容词use副词，形容词
youth形容词save名词sharpen名词
true名词dead名词，动词
happy名词
cloud形容词danger形容词
fun形容词

Answer 1

give - give/gift/giver
speak - speaker
know - knowledge
enter - entry
operator - operate
informal - informality
invite - invitation
decided - decision
win - winning
live - life
widen - widened / wide
care - care (n.) - careful /careless (adj.) - carefully/carelessly (adv.)
thank - thankful
use - useful ( adj.) - usefully
youth - young
save - save / saving
sharpen - sharpening
true - truth
dead - death ( n.) - die (v.)
happy - happiness
cloud - cloudy
danger - dangerous
fun - funny

Answer 2

prep = 介系词；前置词，preposition的缩写
pron = 代名词，pronoun的缩写
n = 名词，noun的缩写
v = 动词，兼指及物动词和不及物动词，verb的缩写
conj = 连接词 ，conjunction的缩写
s = 主词
sc = 主词补语
o = 受词
oc = 受词补语
vi = 不及物动词，intransitive verb的缩写
vt = 及物动词，transitive verb的缩写
aux.v = 助动词 ，auxiliary的缩写
a = 形容词，adjective的缩写
ad = 副词，adverb的缩写
art = 冠词，article的缩写
num = 数词，numeral的缩写
int = 感叹词，interjection的缩写
u = 不可数名词，uncountable noun的缩写
c = 可数名词，countable noun的缩写
pl = 复数，plural的缩写

Answer 3

give本身可作名词 speech
knowledge entrance
operate information
invitation decision
win life
wide
careness careful carefully
thankful usefully useful
young safe sharpness
truth death die
happiness
cloudy dangerous
funny

Answer 4

Bill_wouldn't
begin__(not
begin)to
do
his
homework
until
Mum__returned____(return)yesterday
evening。
2.I
can't
enter
my
room
because
I__have
lost____(lose)the
key.
3.Stella
said
that
she__understood____(understand)German
and
French.
4.Please__give____(give)the
note
to
Peter
as
soon
as
you___meet___(meet)him
this
afternoon.
5.You
should
wash
your
hands
before
and
after
you__have____(have)meals.
6.__Had____you__told____(tell)Miss
Quick
about
it
when
she__arrived____(arrive)this
evening?
7.I___liked___(like)stamps
when
I__was___(be)young.

Answer 5

1.
reconstruct
2.
insistence
3.
resistance
4.
willingness
5.
justice
6.
mental