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(共17张PPT)
UNIT 1　RELATIONSHIPS
单元典型句式结构讲解及对应练习
1.[教材原句] Sometimes I think,if only I could call him and ask for his opinion!
If only...
归纳
点津 only if表示“只有,只要”,引导条件状语从句,不用虚拟语气;若其引导的从句置于句首,且与主句之间没用逗号隔开,则主句要用倒装语序。
随堂练习
单句语法填空
①If only I 　　　　　　　　　　　(study) harder in my youth,I would have more opportunities and a better future now.
②My favorite singer will come to our city and hold a concert next Sunday.If only I 　　　　　　　__________(take) photos with her then.
had studied
could/would take
随堂练习
[写美]句式升级·背诵
③Without doubt,many endangered species can be saved only if people stop cutting down forests.(写作话题之环境保护)
→Only if people stop cutting down forests___________________________　　　　　　　without doubt.(用倒装结构改写)
can many endangered species be saved
2.[教材原句]...not once did she lift her head to enjoy the view outside her window.
否定词在句首引起的部分倒装结构
归纳
(1)句中否定短语not once放在句首,句子使用了部分倒装语序。
(2)not,no等构成的短语表示否定意义,它们放在句首时句子应用部分倒装语序,如in no case,under no circumstances,in no way,on no account,by no means等。
随堂练习
①Mom is always mild to us,and not once 　　　　　　　she punish us strictly.
②In the last two years,under no circumstances 　　　　　Betty delayed handing in her homework late.

does
has
随堂练习
[写美]句式升级·背诵
③Even today I can still remember the days when you taught us.In my memory you became impatient not once however simple the question I asked was.(应用文之感谢信)
→Even today I can still remember the days when you taught us.Not once in my memory 　　　　　　　　　　　　　　however simple the question I asked was.(用倒装结构改写)
did you become impatient
3.[教材原句] As you may know,we are running a school-wide public speaking competition,and the final will take place at the lecture hall on 10 May (9 am-12 pm).
as引导的非限制性定语从句
归纳
随堂练习
单句语法填空
①Our environment,　　　　　　 you know,is facing severe threats,and it is our collective responsibility to preserve it for future generations.
②　　　　　 is mentioned above,reading plays a vital role in expanding one’s knowledge and imagination.
as
As
随堂练习
[写美]一句多译·背诵
众所周知,水是生命之源,所以我们必须节约用水。(写作话题之环境保护)
→③　　　　　　　　　,water is the source of life,so we must save water.
→④　　　　　　　　　　　　　　 water is the source of life,so we must save water.(主语从句)
→⑤　　　　　　　　　　　　　 water is the source of life,so we must save water.(it作形式主语)
As we all know
What we all know is that
It’s known to us all that
4.[教材原句]But he's also never felt more alone．
never...more...
归纳
句中never...more...为比较级的否定形式表示最高级含义。比较级表最高级含义的表达法通常有以下几种：
否定词＋形容词/副词比较级(＋than)
否定词＋so/as ＋形容词/副词原级＋as
比较级＋ than＋the other＋名词复数/any other＋名词单数/any of the other＋名词复数/anyone else
随堂练习
①I couldn't agree with you ______ (much)．
②No other book has had a _______ (great) effect on my life．
李洋在班里学习最努力。
①Li Yang studies harder than __________________ in his class．(the other)
②Li Yang studies harder than _________________ in his class．(any other)
③Li Yang studies harder than _________________________ in his class．(any of the other)
④Li Yang studies harder than ___________ in his class．(anyone),句中never...more...
more
greater
the other students
any other student
any of the other students
anyone else
谢谢

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