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(共22张PPT)
UNIT 5　HUMANS AND NATURE
单元典型句式结构讲解及对应练习
1.[教材原句] That was the day when it took only six hours to break my body and soul.
It takes (sb) some time to do sth句型
归纳(1)It takes (sb) some time to do sth表示“花(某人)多久去做某事”,其中It为形式主语,后面的动词不定式为真正的主语。
(2)该句型可以用spend句型进行改写,spend常用句式为:sb spends some time on sth/(in) doing sth。另外,spend也可用以表示花钱。
佳句If you want to become a doctor,the most effective approach is to engage in a conversation with a doctor and discuss what it takes to become one.(应用文之建议信)
如果你想成为一名医生,最有效的方法是去见一名医生并与他讨论要成为一名医生需要做些什么。
随堂练习
单句语法填空
①It took Dad a considerable amount of time,around three months,
　　　　　　　(research) and write a comprehensive academic paper.
②　　　 took the athlete several years of intense training and strict diet control to reach the level of performance required to compete in international sports competitions.
to research
It
随堂练习
一句多译·背诵
我们花了将近半年的时间来策划和组织一场大型的慈善活动,协调了众多的赞助商和志愿者。
→③　　　　　　　　　　　　　　　　　　　　　　 a large-scale charity event,involving coordinating with numerous sponsors and volunteers.
→④　　　　　　　　　　　　　　　　　　　　　　　　 a large-scale charity event,involving coordinating with numerous sponsors and volunteers.(写作话题之社会实践)

It took us nearly half a year to plan and organize　
We spent nearly half a year planning and organizing
2.[教材原句] I felt sick,as if I was falling from a mountain top in a dream.
as if 表示“好像”句型
归纳(1)as if表示“好像”,等同于as though,引导方式状语从句或表语从句。
(2)当主句为一般将来时态时,as if/though引导的让步状语从句应用一般现在时态。
(3)as if/though引导的从句中,若主语和主句主语相同,且从句谓语含有be动词时,可省略从句主语和be动词。
(4)在as if/though引导的从句中,如果从句内容和事实相符用真实语气,和事实不符则应用虚拟语气。
佳句My mother looked at me deeply,as if she were trying to take every bit of energy,love and strength in her body and pass it on to me.(读后续写之母爱的伟大)
我妈妈深深地望着我,仿佛正试着把她身体里的每一点能量、爱和力量都传递给我。
随堂练习
单句语法填空
①I who am blind can give one hint to those who see:Use your eyes as if tomorrow you 　　　　　　　　　　　　(strike) blind.
②There stood an old temple quite hidden;it seemed as if it
　　　　　　　　　　　　(forget) entirely.
would be stricken　
had been forgotten　
随堂练习
句式升级·背诵
③Seeing the old woman walking back and forth as if she was looking for something,David walked to her,landing her a hand.
→Seeing the old woman walking back and forth_________________ 　 　　　 something,
David walked to her,landing her a hand.(用省略句改写)
④Tony stood under the tree with his head bent as if he was criticized by his mother.
→Tony stood under the tree with his head bent 　　　　　　　　　　.
(用省略句改写)
as if looking for
as if criticized by his mother
3.[教材原句] But what if I’m trapped
What if... 句型
归纳(1)What if... 常用以提出假设,表示“如果……怎么办 ”“要是……会怎么样 ”。
(2)what if后的句子可用陈述语气,也可用虚拟语气,针对现在和将来情况常用过去时态,针对过去情况常用过去完成时态。
佳句What if no one believes me What if Mom catches me What if I let everyone down again She couldn’t quiet her thoughts.(读后续写之心理描写)
要是没人相信我怎么办 要是妈妈抓到我怎么办 如果我又让大家失望了怎么办 她无法使她的思绪平静下来。
随堂练习
[练会]微写作
①假若下起雨来,我们又没处避雨可怎么办
　　　　　　　　　　　　 when we can’t get under shelter
②如果你的老师没有给你提出那些十分有效的建议呢
　　　　　　　　　　　　　　　　　 those really effective suggestions
③如果你决定走一条完全不同的职业道路,追求你对艺术的热情怎么样呢
　　　　　　　　　　　　　 to take a completely different career path and pursued your passion for art
What if it rains
What if your teacher hadn’t given you
What if you decided
随堂练习
同义句转换·背诵
④What will happen if we all make a conscious effort to reduce our carbon footprint by minimizing the use of single-use plastics (应用文之倡议信)
→

What if we all make a conscious effort to reduce our carbon footprint by minimizing the use of single-use plastics
4.[教材原句] The next to go was Captain Oates,who was having great difficulty walking.
have difficulty (in) doing句型
归纳(1)have great difficulty walking“走路都很困难”,have difficulty (in) doing sth句型表示“做某事有困难”。
(2)该句型也可用have problems/trouble (in) doing sth,当后面跟名词时则需要用句型have difficulty/problems/trouble with sth。
佳句Every day Mrs Green carried her 15-year-old daughter who had difficulty walking to the library,where her daughter read a lot,contributing her later success.(读后续写之学校生活)
每天,格林夫人都带着她走路有困难的15岁女儿去图书馆,她的女儿在那里读了很多书,这为她后来的成功做出了贡献。
随堂练习
单句语法填空
①Despite attending regular classes and reading extensively,John still has difficulty 　　　　　　understanding these complex concepts.
②On our mountain climbing expedition,we had problems_________ 　　　　　altitude sickness,which affected several climbers and slowed down our progress.
③Whatever difficulty you have 　　　　　　(write) the report,don’t hesitate to ask your manager for advice.
in
with
writing
随堂练习
[写美]翻译句子·背诵
④我与外国人交流几乎没有什么困难,这使得我很适合做志愿者。
______________________________________________________________ (应用文之申请信)
I have little difficulty (in) communicating with foreigners,which makes me fit for a volunteer.
5.[教材原句]The first，the larger the bodies were，the more rapidly they fell...
“the＋比较级(＋主语＋谓语)，the＋比较级(＋主语＋谓语)”意为“越……，就越……”。
“比较级＋and＋比较级”意为“越来越……”，表示本身程度的变化。
“the more...，the less...”意为“越……，越不……”。
一，物体越大，下降速度越快……
随堂练习
①The longer he waited outside the operating room，the ____________ (anxious) he became．
②The more roads and parking lots we pave，the ____ (little) water can flow into the ground to become groundwater．
③The more we do for the people，the _______ (happy) we will feel．
④他面临的困难越复杂，他就越冷静、越勇敢。
____________________the difficulties he faces，the calmer and braver he is．
more anxious
less
happier
The more complicated
6.[教材原句]If people hadn't taken the meat，the wolves would have left the farmers' sheep alone．
对过去情况的虚拟，if从句用had done形式，主句用would/should/might/could have done形式。
对现在情况的虚拟，条件句用一般过去时，主句谓语用“would/should/might/could＋动词原形”。
对将来情况的虚拟，条件句中谓语动词可用should do，were to do或动词的过去式三种形式，主句谓语用“would/should/might/could＋动词原形”。
随堂练习
①If I ____ (be) you，I would choose to work in a small town．
②If it __________________ (snow) tomorrow，our plan would be postponed．
③If I _________ (know) you were coming，I would have met you at the airport．
④如果我不是亲眼所见，我是不会相信的。
If I ___________ it with my own eyes，I ______________________ it．
⑤要是我现在没有这么多事情要去应付，我一定会参加你的婚礼的。
If I ___________ so many things to deal with now，I ________ definitely attend your wedding．
were
snowed/should snow
had known
hadn't seen
wouldn't have believed
didn't have
would
谢谢

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