not
spend
,chatting(记住had
better
do
sth
或者had
better
not
do
sth
,spend
some
time
in
doing
sth
)preferred,(five
years
ago是过去的时间用过去式,prefer的过去要双写r再加ed
is
examining,(look表示正在进行,则用现在进行时be
+doing
go(记住why
not
后面加动词原形就是,不管动词是哪一个,原形就是对的)
ought
to(意思和should相同,并且ought
to
do
sth表示应该做某事
1
not
spend
(in)
chatting
had
better
(not)
do
sth.表最好做/不做某事;
spend
+money/time
(in)
doing
sth.表花费时间、金钱做某事。
2
preferred
结合句子的时态(five
years
ago),过去时。
3
is
examining
现在进行时,表正在发生的动作,“看,那医生正在检查学生的牙齿。”
4
go
why
not
do
sth==
why
don't
you
do
sth
表示提议、建议“为什么不。。。。呢?”
5
ought
to
应该