本单元还是继续名词性从句中的同位语从句，小伙伴需要将之与定语从句进行辨析。下面跟着橙子妈妈一起进行回顾和总结吧！
Step1单元词汇总结复习
01
课内高频词汇
1．differ(vi.) 不同；相异→difference(n.) 不同；差异→different(adj.) 不同的
2．exact(adj.) 精确的；准确的→exactly(adv.) 精确地；准确地
3．undertake(vt.) 着手；从事；承担→undertook(过去式)→undertaken (过去分词)→undertaking (n.) 任务；项目；事业
4．regulation(n .) 规则；规章；法规→regular(adj.) 规则的；有规律的
5．cast(vt.) 扔；投；掷→cast(过去式/过去分词)
6．altogether(adv.) 总共；完全地
7．object(vi.) 反对；不赞成→objection(n.) 不赞成；反对；异议
8．moral(adj.) 道德(上)的；伦理的→morally(adv.) 道德上地；伦理上地
9．accumulate(vt. & vi.) 积累；聚积→accumulation(n.) 积累；聚积
10．assumption(n.) 假定；设想→assume(vt.) 假定；设想
11．shortly(adv.) 立刻；不久
12．retire(vi.) 退休；离开→retirement(n.) 退休，退职；退役→retired(adj.) 退休的；离职的
13．bother(vt.) 打扰(vi.) 操心(n.) 烦扰
14．resist(vt.) 抵抗；对抗→resistance(n.) 抵抗力；反抗→resistant(adj.) 有抵抗力的；耐……的
15．obtain(vt.) 获得；赢得→obtainable(adj.) 可获得的；可得到的
16．reason(n.) 理由；原因→reasonable(adj.) 合情理的；讲道理的；公道的→unreasonable(adj.) (反义词)不合情理的
17．fair(adj.) 公平的；适当的；合理的→fairness(
n.) 公平→fairly(adv.) 公平地；相当地02
重点短语
1．pay_off 得到好结果；取得成功；偿清
2．cast_down 沮丧；不愉快
3．have_a_great_impact_on 对……有重大影响
4．object_to 反对
5．in_favor_of 赞成；支持
6．owe..._to_ 把……归功于……
7．(be)_bound_to_(do) 一定或注定(做)……
8．strike...into_one's_heart 使……刻骨铭心
9．from_time_to_time 不时；偶尔
10．bring...back_to_life 使复生；使复活
11．in_vain 白费力气；枉费心机
12．in_good/poor_condition 状况很好(坏)；情况很好(坏)
03
课内重点句型汇总
1．while表对比关系，“然而；可是”
Cloning plants is straightforward while(然而)cloning animals is very complicated.
2．当now，then位于句首，谓语是come，appear等时，主句完全倒装。（小伙伴们记得去回顾一下必修五的倒装句）that引导同位语从句
Then_came(传来)the disturbing news that Dolly had become seriously ill.
3．Theadvantage is that...“其优点是……”，that引导表语从句
The_advantage_is_that(优点是)if there is a new illness some of these animals may die, but others willsurvive and pass on the ability to resist that disease to the next generation.
4．based on...“建立在……的基础之上”，过去分词作状语
Based_on(建立在……基础之上)what we know now, you can not clone animals that have been extinct longer than10,000 years.
Step2 针对性练习
1
语法填空
1. Jack ________(differ) from Eric in many aspects though they aretwins.
2. This new plant is ________(exact) what I am searching for.
3. The DNA needed to clone dinosaurs is difficult ________(obtain).
4. The government of Guangzhou _______(forbid) smoking in the publicplace a couple of years ago.
5. We find it necessary ___________(accumulate) vocabulary whenlearning English.
6. _________(short) after he graduated from university, he found ajob in a big company.
7. The _________(assume) that the earliest settlers arrived by meansof a land bridge is reasonable.
8. Dodo birds are so fat and heavy that they are_________(able) tofly.
9. I appreciate my best friend, Sophoe, who _________(bother) to helpme out when I was in trouble.
10. The idea of cloning human beings raised a storm of_________(object) and had a great impact _________the media.
11. T-shirt is inappropriate ________ such a formal occasion.
12. The scientists _________(undertake) research _______ renewable energy sources formany years.
13. The experts are still discussing about the question _______ theycan do to resist bird flu.
14. Do you have any idea ________ country will win the 2012 Europeancup.
15. Word came _______ the experiment ended in failure.
16. Cindy has a talent for drawing _______ her sister is good atsports.
17. Students are required to observe school rules and_________(regulate).
2
句子考查
1. When spring comes, everything_______ ______ ______ ______ ______(复苏).
2. Illegal organ deals ______ fear_______ ______ _______(使人们…刻骨铭心).
3. You ______ ______ _______(一定) succeed as long as you stick to it.
4. My efforts ____ ______ (得到回报) when I made rapid progress in English.
5. Every means has been tried to settle the problem but _____ _____ (白费力气)
6. We gather together to have fun now and then.
We gather together to have fun_____ _____ ______ ______.
7. I approve of your decision that the meeting should be delayed.
I ______ ____ ______ ______ your decision that the meeting shouldbe delayed.
8. I was disappointed to be informed that our team lost the game.
I _____ _____ _____to be informed that our team lost the game.
9. My breakthrough in chemistry was due to my teacher’s help.
I _____ my breakthrough in chemistry ______ my teacher’s help.
10. Can the man attain his ambition eventually? I have no idea.(用同位语从句改写)
______________________________________________________________
11. Who is the right person to replace Lucas? We are discussing aboutthe question.(用同位语从句改写)
______________________________________________________________
12. We have drawn a conclusion. The conclusion is that those who arecalm make less mistakes in exams.（用同位语从句改写 )
______________________________________________________________
Step3 单元语法
复习同位语
1
概念
同位语是句子成分的一种，位于名词、代词后面，说明它们的性质和情况，它可以由名词、代词、名词性短语或从句充当。
The program is attractive. The program is WhereAre We Going, Dad.
→The program, Where Are We Going, Dad, is attractive.
同位语的表现形式
同位语除可以直接位于所修饰的名词、代词后外，也可以用“suchas, that is, of, or”等词引导。
The freezing temperature is the temperature at which water freezes under ordinary pressure. Freezing point is that too.
→The freezing temperature, or freezing point,is the temperature at which water freezes under ordinary pressure.
2
同位语从句
概念：一个句子在复合句中起到同位语的作用，对前面的名词进行解释说明。这个句子被称为同位语从句。
He told me the news—he would come home from abroad soon.
→He told me the news
that he would come home from abroad soon.3
用法：同位语从句一般位于“fact,news, idea, truth, hope, belief, thought, doubt, question, promise,information”等抽象名词后，解释前面名词的具体含义。
When will he come back? I have no idea.
→I've no idea when he will come back.
4
同位语从句连接词有“that,whether, who, which, what, when, where, why, how”等。
Should we continue to do the experiment？The problem has not been solved.
→The problem whether we should continue to do the experiment has not been solved.
5
同位语从句与定语从句的区分：同位语从句所修饰的名词在从句中不作成分；定语从句所修饰的名词在从句中充当句子成分。
①Thenhe raised the question.
Wherewere they to get the machine needed?
→Thenhe raised the question where they wereto get the machine needed.(同位语从句)
②Doyou know the place? He was born in the place.
→Doyou know the place where he was born？(定语从句)
高考词汇是基础，所以我们需要按部就班地积累每个单元的重点词汇;高中英语名词性从句是我们学习的重点，大家需要多巩固练习噢~
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