Think1UnitSummary
Unit7SmartLife知识清单
Vocabulary
1.Gadgets
2.Expressionswithlike
3.Housework
Grammar
haveto/don’thaveto
Rule
Weusehavetotosay‘thisisnecessary’,andusedon’thavetotosay‘thisisn’tnecessary’.
Examples
Tostoptrachoma,peopledon’thavetotakeexpensivemedication.
Theyhavetowashtheirfaceswithcleanwater.
Positiveandnegative
Subject
haveto
baseform
I/You/We/They
haveto
don’thaveto
take
ashower.
She/He/It
hasto
doesn’thaveto
Question
Do/does
Subject
haveto
baseform
Do
I/you/we/they
haveto
take
ashower?
Does
she/he/it
ShortAnswer
Yes/No
Subject
do/does
Yes/No
I/you/we/they
do/don’t.
she/he/it
does/doesn’t.
should/shouldnt
Rule
Weuseshouldtosay‘It’sagoodidea.’andshouldn’ttosay‘It’snotagoodidea.’
Examples
Youshouldtakesomemedicine.
Youshouldn’teatanymorecake.
Positiveandnegative
Subject
should
baseform
I/You/We/They/She/He
should
shouldn’t
take
somemedicine.
Question
Should
Subject
baseform
Should
I/you/we/they/she/he/it
take
somemedicine?
ShortAnswer
Yes/No
Subject
should
Yes
I/you/we/they/she/he/it
should
No
shouldn’t.
must/mustn’t
Rule
Weusemusttosaythatweneedtodosomething.
Weusemustnttosaythatitisnecessarynottodosomething.
Weusedon’thavetodosaythatitisnotnecessarytodosomething.
Examples
Imveryhungry.Imusteatsomething.
Youmustntbelate
Youdonthavetotellyourfriends.
Positiveandnegative
Subject
must
baseform
I/You/We/They/She/He
must
wash
handsbeforedinner.
mustn’t
touch
thepictureinthelibrary.
Question
Must
Subject
baseform
Must
I/you/we/they/she/he/it
finish
thehomeworktoday?
Yes/No
Subject
Yes
I/you/we/they/she/he/it
must.
No
don’thaveto.
DevelopingSpeaking
Phrasesforfluency
Translation
Phrasesforfluency
Translation
Nochance.
没有机会，没戏
Absolutely.
（强调同意或允许）当然，
...andstuff.
等等，诸如此类（口语）
So,…?
那么
Nevermind.
没关系，不要紧
Allright…?
好啦s
Function
Askingforrepetitionandclarification
Askingforrep