Unit 5 Meeting your ancestors语言点课件（21张）

课件21张PPT。Unit 5Meeting your ancestors语言点 短语检测:1.带某人四处参观
2.不管，不顾
3.御寒，驱寒
4.由骨头做成
5.至多
6.切碎
7.受够了
8.在乎外表
9. 看起来好像show sb. aroundregardless ofkeep out the coldbe made of boneat mostcut upbe fed up withcare about one’s appearancelook like知识探究 1. alternative (n.)替换物，可能的选择 (adj.)供选择的，其他的
[即学即练]①有几种方案可以代替我们的计划。
________________________to our plan.
②他别无选择，只好一个人去那儿。
He ________________ but to go there alone.There are some alternativeshad no alternative2. You must be aware that it’s here that we’ve found evidence of some of the earliest people who lived in this part of the world. 想必你们知道，正是在这儿我们找到了居住在世界这个部分最早人类的证据。
It’s here that we’ve …是强调句。
[即学即练]①我是在街上碰到你母亲的。
___________________________________
②我在街上碰到的是你的母亲。
___________________________________
③错的是她。
___________________________________It was in the street that I met your mother.It was your mother whom I met in the street．It was she who was wrong.[归纳] be aware of sth.
be aware that + 从句 ｝意识到……
①我们应该清楚地认识到许多动物正濒临灭绝。
We __________________a lot of animals are becoming endangered.
②尽管大多数烟民都知道吸烟的危害，可他们还是不愿戒掉。
Though most smokers________________,
__________________ they won’t give it up.should be aware that are aware of
the danger of smoking 归纳: must(情态动词,表示肯定推测) “一 定, 肯定”
must be+形容词 （肯定是…）
must be doing（肯定正在做…）(对正在发生或进行的事进行推测 )
must have done(肯定已经做…)（对过去的事进行推测）
[即学即练]①走了很长的路, 你一定很饿。
___________________after a long walk．
②灯亮着, 他一定正在做作业。The light ______. _________________________________.
③地是湿的, 昨晚一定下过雨了。The ground
_______. ___________________last night. You must be hungryis onHe must be doing his homework nowis wetIt must have rained3. interrupt (vt. & vi.) 打断…讲话；打岔；中断 ___________n. 中断；打扰
[归纳] be interrupted by…被……打断
interrupt sb.打断某人讲话或正在做的事
without interruption不间断地
①别打扰他，他还没完成呢。
________________, for he hasn’t finished yet.
②他的学习由于战争而中断。
His study_________________________.
③ _________________(不要打扰我) while I’m busy.interruptionDon’t interrupt himwas interrupted by the warDon’t interrupt me4. assume (vt.)假定；设想
[归纳] assume sth. 假定/设想某事
assume that+宾语从句 （假定/设想……）
[即学即练]①别总往最坏处想。
____________________________
②科学家们设想月球上没有动物。
________________________________
________________________________Don’t always assume the worst.The scientists assume that
there are no animals on the moon.5. regardless of… 不顾，不管… regardless (adj.) 不注意的，不重视的[即学即练]①不管有多危险，他还是爬上了大厦。He climbed the building ________________________②不管什么样的肤色，每个人都有权利住在这里。___________________________________, every man has the right to live here.③他不注意自己的外表。_____________________________________.regardless of the danger .Regardless of the color of his skinHe is regardless of his appearance6. We have been excavating layers of ash almost six metres thick, which suggests that they might have kept the fire burning all winter. 我们一直在挖掘一层层的积灰，几乎有六米厚，这说明他们可能整个冬季都在烧火。
[归纳] suggest (vt.) 表明,暗示 （后面跟的宾语从句用陈述语气）
suggest doing sth建议做某事
suggest (that) sb (should) do sth建议某人做某事[即学即练]
①他的脸色表明他现在很开心。
His face __________________________.
②我建议马上回家。
_____________________________.
③我建议她马上回家。
______________________________
______________________________suggests that he is happy nowI suggested going home at onceI suggested (that) she (should)
go home at once.[归纳] 现在完成进行时: have been doing (表示一个由过去某一时间开始一直延续到现在的动作，这动作有可能刚刚结束，也可能还要进行下去。)它通常和“for+时间段”或“since+时间点”连用。
[即学即练]
①我已经找了三天我的英语书, 但还没找到
I ___________________ my English book _____________ , but I haven’t found it yet.have been looking forfor three days②我一直在等我父母的来信。I ______________________a letter from my parents.　
③雨已经下了三个小时了。
_____________________________.　
have been waiting forIt has been raining for three hours7. at most 至多; 最多
________至少; 最少
[即学即练] ①它最多有五米长。
It’s ______________________.
②每组志愿最多只能选报三所大学。
You can ___________________
__________ in every group of volunteers.at leastat most five meters long choose at most three
universities8. cut up 切碎
[归纳]
cut down砍倒 cut in插话 cut off切断
[即学即练] 选词填空：
①The farmer _________the tall tree and then ____it ____into pieces.
②It’s not polite to _______when we are talking.
③Our water supply has been________.cut downcutupcut incut off9. ample adj.足够的；充足的；丰裕的 ________adv. 充足地；丰厚地
ample opportunity / evidence / space 充分的机会/足够的证据/宽敞的空间
[即学即练]
①________________________(宽敞的免费停车场) is available in this area.
②His efforts were ________________.
(得到了丰厚回报). amplyAn ample free parking lotamply rewarded10.be fed up with...受够了，饱受，厌烦
[即学即练]
①我等她等烦了。
____________________________.
②人们厌烦了交通堵塞。
_______________________________.
③我们受够了他的长篇大论。
We ______________his long speech.I’m fed up with waiting for herPeople are fed up with the traffic jamare fed up with写作训练：请你介绍北京猿人。[写作内容]1.北京人生活在70万年--20万年前，而北京猿人的化石(fossil)首次发现于1927年
2.北京猿人能够制造和使用劳动工具
3.能用天然火取暖、熟食和吓退野兽 。
4.生活艰苦，寿命比较短暂。
5.他们群居在洞穴中，以狩猎为生。[写作要求]
1.用60个词表达全部内容;
2.介绍必须包括所有要点。Writing写作词语：北京猿人
化石
劳动工具
天然火
（被）发现
能够
取暖
生活艰苦
吓退野兽Beijing ape-man
fossil
labor tools
natural fire
be discovered
be able to
keep warm
live a hard life
scare beasts away Beijing ape-man lived about 700 ,000 - 200 ,000 years ago, whose fossils were first discovered in 1927. They were able to make and use labor tools .They lived a hard life in caves in groups by hunting. They used natural fire to keep warm, cook food and scare beasts away. They lived a short life.Beijing ape-man