课件50张PPT。Meeting your ancestorsUnit 5 The Zhoukoudian Beijing Man Site is one of the most important world heritage(遗产) sites in China. Since the discovery was made in the 1920s, Zhoukoudian has become an important place for archaeologists from all over the world. At the site in the southwest suburb(郊区) of Beijing, there is, for example, the earliest evidence of the use of fire by humans. It has also been proved that people lived there continuously between 500,000 and 10,000 years ago.Today, however, Zhoukoudian is in serious danger. Parts of the caves have been badly affected by rain and exposure to the air. Some areas are almost completely covered in weeds, causing serious damage. Pollution from nearby cement(水泥) factories has also contributed to the problem.
The site is extremely expensive to maintain(维持) and it will cost between three and five million yuan to repair it. At the moment, visitors are not allowed to visit the caves.
Zhoukoudian is on the World Cultural Heritage List, organized by UNESCO, the United Nations Educational, Scientific and Cultural Organization. The list is constantly checked. Any site which is seriously damaged or which is not properly protected is an endangered heritage, and UNESCO is very quick to do something about situations like this. They have recommended that the site be closed and repaired. If nothing is done to repair it, it could be removed from the list.This is a very serious matter and the Chinese Academy of Sciences is trying to raise public awareness about it.
Dr. Zhu Ming of the Academy said, “We have requested that the government get involved, but we also need assistance from ordinary people. They can help by contributing to the cost of repairing the caves. They are a precious part of our cultural heritage — it is of great importance that we do something. If not, it will be a catastrophe.”Section Ⅰ Warming Up and Reading 栏目导航Ⅰ.Scan the text and choose the best answer according to the text.
1.Where do the caves lie?
A.In the forest. B.On the seaside.
C.At the foot of the hill. D.Higher up the hill.
答案：D
2.Which of the following material did the earliest people in the caves used to make clothes according to the conversation?
A.leavesB.wools
C.animal skinsD.cotton
答案：C
3.From the conversation we can infer that the earliest people in the caves probably____.
A.were good at building boats
B.mainly depended on sea for a life
C.travelled to the sea
D.didn't care about their appearance
答案：C4.Which of the following is the correct order about how early people made clothes?
a.clean the fat and meat from the skin
b.cut up the animals
c.rub salt inside the skin
d.remove the skin
e.sew the pieces together
A.b—d—c—a—e B.b—d—a—c—e
C.b—a—d—c—e D.b—a—c—d—e
答案：BⅡ.Read the conversation again.Write down the three topics of the archaeologist's part of the dialogue.
Topic 1:Life in the cave
Topic 2:What we can learn from a needle
Topic 3:What we can learn from a necklaceⅢ.Complete the following passage with the words in brackets in their proper forms or the words from the text.
A group of students from England has come to the Zhoukoudian caves 1. _____ a visit. 2. ____ archaeologist is showing them round. The archaeologists 3.___________________(excavate) here for many years. After 4.________(find) human and animal bones in those caves higher up the hill as well as tools and other objects, they think 5.___is reasonable to assume they lived in these caves, regardless of the cold. They discovered fireplaces in the centre of the caves 6.______ they made fires. Some evidence suggests that our ancestors did wear clothes 7._______ (make) from animal skins. The archaeologist also shows the students a primitive necklace 8.__________(preserve) quite well. forAnhave been excavatingfindingitwheremadepreservedIndeed, as the botanical analyses have shown us, all the fields around here 9.______(use) to be part of a large shallow lake. Perhaps there was trade between early peoples 10.____ they travelled to the seaside on their journeys. usedorPoint ? alternative n.［C］可能的选择
adj.供选择的；其他的考点一 单词点击①Can you think of the alternatives we would use today?（教材P37）
你能想出今天我们使用的替代品吗？an alternative to………的替代品
have the alternative of doing sth.有做……的选择；可以做……
There is no alternative………别无选择
have no alternative but to do sth.除了做某事别无选择②We can take a boat to Florida, and as an alternative, we can fly.
我们可以乘船去佛罗里达，另一个选择是乘飞机。
③I had no money, so I had no alternative but to stay at home.
我身无分文，只能待在家里，别无选择。单句语法填空。
（1）Now we have no alternative but ________（cancel） this contract.
单句改错。
（2）You have the alternative of speaking and keeping silent.④I have no alternative but to give up the plan.
=I have no choice but to give up the plan.
=I have nothing to do but give up the plan.
除了放弃那个计划我别无选择。to cancelorPoint ? interrupt vi.打断……讲话；打岔；阻碍；中断；插嘴
vt.暂时中断或中止①I'm sorry to interrupt you but how could they live here?(教材P38)
对不起，打断了你的讲话。不过，他们怎么能够住在这儿的?
②One person should describe his or her side, and the other person should listen without interrupting.
一个人应描述他或她的状况，而另外一个人应该倾听而不能打断。interrupt…with 用……打断
be interrupted by 被……打断③It is not polite to interrupt a speaker with frequent questions.
不断提问打断演讲者是不礼貌的。
④They were interrupted by a sudden and urgent knock at the door.
他们被突然而急促的敲门声打断了。
interruption n.阻断物；中断，打断；打扰
without interruption 不间断地；不受打扰地⑤She has kept up physical training for several years without interruption.
她坚持锻炼，多年从未间断。
interrupt, disturb
interrupt 突然中断、打断他人的言语或行为，使其不能继续，侧重打断
disturb 较正式的用词，多用被动语态。指“扰乱”，使人不能平静或妨碍别人工作、思维或正常秩序，是程度较深的打扰
选词填空（interrupt, disturb）。
（1）She tried to explain what had happened but he kept ___________ her.
（2）If you get up early, try not to ________ anyone else.
单句语法填空。
（3）The calm of the afternoon _________________(interrupt) by a loud bang.interruptingdisturbwas interruptedPoint ? assume v.假定；设想；承担；采取；呈现assume…to be…认为……是……，假定……是……
It is assumed that………被认为①So we think it is reasonable to assume they lived in these caves, regardless of the cold.(教材P38)
所以我们有理由认为他们不顾严寒，就住在这些洞穴里。②We assumed him to be the best writer of our time.
我们认为他是我们这个时代最好的作家。
③It is generally assumed that stress is caused by too much work.
普遍认为，紧张是工作过重所致。
(1)assuming(that)…假定……(作状语)
(2)assumption n. 设想；假定；承担
make an assumption (about) (对……)作出假设/推测；
假定/认为……
on the assumption that 假定④Assuming that the advice is accepted, when are we going to get the money?
假定这个建议被采纳，我们什么时候能拿到钱？
⑤People make a lot of assumptions about her family background.
人们对她的家庭背景做出种种推测。
【点拨】assuming以及suppose/supposing/providing/provided后可接从句，相当于if, on condition that引导的条件状语从句。单句改错。
(1)Assume that it is true, what should we do now?
(2)We are working in the assumption that the rate of inflation will not increase next year.AssumingonPoint ? sharpen vi.& vt.(使)锋利；尖锐；清晰；(使)强烈①We continue discovering tools that were sharpened for other tools.(教材P38)
我们不断发现一些磨削其他工具用的工具。
②My pencil is blunt, so could you lend me a knife to sharpen it?
我的铅笔钝了，你能借我把刀子削一削吗？
③The soldiers sharpened up their knives.
战士们把刀磨得锋利。④Generations of urban living sharpened their wits.
世代居住在城市里使他们磨炼了才智。
⑤The tone of his letters has sharpened （is becoming less friendly） recently.
他最近来信的口气变得刻薄起来。
sharp adj.锋利的,尖锐的;急转的,陡峭;突然的,急剧的⑥a sharp turn急转弯
⑦a sharp increase 急剧增加单句语法填空。
(1)Coffee became popular with scholars as it _________(sharpen) the mind rather than dulled it like alcohol.
解析：句意：咖啡在学者中间开始流行，因为它能使思维变得敏锐，而不是像酒精那样让它迟钝。
(2)Language is not only knowledge; it is a skill which needs ______________________(sharpen) by using in the real world.
解析：句意：语言不仅仅是一种知识，它是一种需要在真实世界中打磨的技能。sharpenedto be sharpened/sharpeningPoint ? regardless of 不管；不顾；不理会考点二 短语诠释①So we think it is reasonable to assume they live in these caves, regardless of the cold.(教材P38)
因此，我们有理由认为他们不顾严寒，就住在这些洞穴里。
②He stood for freedom of speech for everyone regardless of color,race or creed.
他主张不分肤色、种族或信仰，人人都有言论自由。
③The fields give high and stable yields regardless of clamatic circumstances.
不管天气条件如何，这块地总是保持稳产高产。
（1）regardless of “不管；不顾”，常接名词短语。
（2）although/though“虽然，尽管”，常接从句。
（3）however/no matter how“无论……”，常接从句。
（4）in spite of/despite “虽然，尽管”，常接名词短语；有时也用于in spite of/despite the fact that…结构。【注意】regardless of强调“不认为……重要”，从而不加以重视或考虑，而despite和in spite of有“尽管……但是……”之意，一般情况下可互换使用。体会：不管费用多少，我们必须采取一切措施抢救这位老人。
④Regardless of expense,we must take every measure to save the old man's life.
⑤In spite of/Despite the fact that how much it will cost,we must take every measure to save the old man's life.
⑥No matter how/However much it will cost,we must take every measure to save the old man's life.
⑦Although it costs too much,we must take every measure to save the old man's life.单句改错。
(1)He continued speaking, regardless about my feelings on the matter.
(2)They remain friends despite of all their differences.
解析：despite+名词，尽管……。of Point ? at most=at the most至多；不超过①It's at most three centimetres long.(教材P38)
这东西最多三厘米长。
②He'll be back in five minutes,ten minutes at most.
他会在五分钟后回来，最多十分钟。
③Perhaps you cycle to school or to work ,or maybe at most a short cycling trip with friends?
或许你骑自行车去上学或去上班，或者最多与朋友一起骑自行车旅行？
at least=at the least至少
at any price/rate 无论如何；不惜任何代价
at full/great length 极详细地；全身平伸地
at large 逍遥法外的
at (the) best 最多，充其量
at (the) worst 在最坏的情况下④It is better to get to the airport in advance of at least an hour.
最好提前至少一小时到达机场。
⑤If she really wanted him back that badly,at least she would have called him,but she didn't.
如果她真那么想让他回来，至少可以给他打个电话啊，但她根本没打。选用以上短语的适当形式填空。
(1)The thieves are still _______, and because of the lack of evidence， it is unlikely that they will ever be brought to justice.
解析：句意：这群窃贼仍然逍遥法外，并且由于证据不足的缘故很可能无法定罪。
(2)I've spoken _________________ about the importance of owning your own time.
解析：句意：我已经详细地讲过拥有自己时间的重要性。
at largeat great/full length(3)Although he is poor, ________ he is honest.
解析：句意：虽然他穷，但他至少是诚实的。
(4)Don't expect much of him; he is _______ a student.
解析：句意：不要对他期望过多；他充其量是个学生。at leastat bestPoint ? cut up切碎；使伤心；严厉批评①It seems that they used the sharpened stone tools to cut up animals and remove their skin.（教材P38）
看样子他们是用磨尖的石器切割野兽并剥皮。
②This piece of material may be cut up to make a pair of trousers.
这块布料可以裁成一条裤子。
③The article was severely cut up by some critics.
那篇文章曾受到一些评论家严厉的抨击。
④I cut up the cake and gave each child one piece.
我把蛋糕切开，给每个孩子各一份。
cut off 切断；剪掉
cut down 砍伐；削减
cut in 打断
cut out 剪去，删去;略去
cut into pieces 切成碎片⑤She was much cut up about his brother's accident.
弟弟出事了，这让她很伤心。选用以上短语的适当形式填空。
（1）Let's ________ the chicken and make some soup.
（2）The floods have _______ our supplies.
（3）Don't try to ________ while others are talking.
（4）The coal industry was ________ to half of its former size.cut upcut offcut incut down考点三 句型归纳Point ? must的“推测”功能You must be aware that it's here that we found evidence of some of the earliest people who lived in this part of the world.（教材P38）
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。
点拨：本句中的must用于对肯定或有把握的事情或情况表示推测，意思是“必定，准是”。常用于以下四种结构中：（1）must+do表示对现在情况的推测。
①—He entered the room just now.He must be here.
——他刚刚进屋，他一定在这里。
—I'm sorry he isn't here.He must have left already.
——抱歉，他不在这儿。他准是走了。
（2）must+have done表示对过去情况的推测。
②He must have stayed up last night,for he is a little tired in the morning.
他昨晚一定熬夜了，因为他早晨就有点疲惫。（3）must+be doing表示对正在发生的动作或将要发生的动作的推测。
③There will be an English test tomorrow.He must be preparing for it now.
明天要考英语，他现在一定在准备考试。
（4）must have been doing表示对过去某个时候或某段时间正在发生的动作的推测。
④I must have been sleeping when you telephoned me last night.
当你昨晚给我打电话的时候我一定正在睡觉。
can/could,may/might 的推测功能：
（1）can/could 通常用于疑问句和否定句中表示推测。
That can't be our class teacher.He has gone to Beijing.
那一定不是我们的班主任，他已经去北京了。
（2）may/might用于肯定句和否定句中表示推测。
（3）在肯定句中表示推测时must的语气比may/might强。
（4）在否定句中表示推测时can/could的语气比may/might强。
（5）情态动词can/could，must和may/might表示推测时，其反义疑问句不能用情态动词，必须去掉情态动词之后在句子本来意义的基础上进行反问。⑤He must have seen the film.可以理解为He has seen the film，所以反义疑问句用hasn't he？
⑥He must have seen the film yesterday.可以理解为He saw the film yesterday，所以反义疑问句用didn't he？单句语法填空。
(1)I have lost one of my gloves. I ___________________(drop) it somewhere in the library this afternoon.
(2)The light is still on in our teacher's office; he _________________(mark) our exam papers now.must have droppedmust be marking Point ? as引导的非限制性定语从句Yes,indeed,as the botanical analyses have shown us,all the fields around here used to be part of a large shallow lake.（教材P39）
确实,正如植物学分析显示给我们的那样,附近所有的土地都曾是大型浅湖的一部分。
点拨：此处as引导的是非限制性定语从句，译作“正如……那样”。 as引导非限制性定语从句时，位置比较灵活，除了常置于句首外，还可以位于句中或句末。①As the proverb goes,“The enemy in disguise is just like the wolf in sheep's clothing.”
正如谚语所说的那样,伪装的敌人就像是披着羊皮的狼。（句首）
②Mike，as we expected，attended the meeting.
像我们所期望的那样，迈克参加了会议。（句中）
③He wasn't unconscious，as could be judged from his eyes.
他并未失去知觉，这从他的眼神可以判断出来。（句尾）
as 与which 引导非限制性定语从句的区别：
（1）相同点：
既可指代某一先行词，也可指代整个主句的内容，译作“这一点”，有时可互换。
④He is quite pleased， as／which can be seen from his face.
他非常高兴，从他的表情可以看出来。
（2）不同点：
1）位置不同：as引导的非限定性定语从句可以放在句首、句中，而which引导的非限定性定语从句不能放在句首。
2）意义不同：as引导的非限定性定语从句时，还可译为“正如……一样；就如……一样”，具有方式意味；而which不能；as引导的非限定性定语从句表示说话的依据、态度、解释或评论等，常用于as we all know（=as it is known to us all）,as is said（reported,mentioned,etc.） above,as it is等。which引导的非限定性定语从句表示某事的状态或结果。
3）逻辑关系不同： 当主、从句在意义上构成因果关系时，常用which代替as。如：
⑤Helen was much kinder to her youngest son than to the others, which, of course, made the others envy him.
海伦对自己最小的儿子比其他孩子都要好，这一点使其他孩子很嫉妒。单句改错。
(1)The number of smokers, it is reported, has dropped by 17 percent in just one year.
(2)Which we have stressed many times, “serve the people” is our first policy.asAs课件10张PPT。Meeting your ancestorsUnit 5 Section Ⅱ Learning about Language栏目导航考点 语法细解现在完成进行时
一、现在完成进行时的定义
现在完成进行时表示某动作从过去某个时间开始，一直延续到现在，并且还有可能持续下去。如：
We have been waiting for him for two hours.
我们等他等了两个小时。
二、现在完成进行时的结构
现在完成进行时由“have/has been + 现在分词”构成。三、现在完成进行时的应用
1.表示动作从过去某一时刻开始，一直持续到现在并有可能延续下去，常与for，since引出的时间状语连用。
①I have been teaching English for almost twenty years.
我教英语将近有20年了。
2.表示动作刚刚结束。
②Where have you been? I have been waiting for you in the rain two hours.
你去哪了?我在雨中等了你两个小时。(动作刚结束)3.表示动作的重复(指断断续续，而非一直不停)。
③They have been discussing the matter several times this year.
他们今年已经数次讨论那件事了。(动作重复)
4.表示某种感彩。
④I have been telling you not to make trouble.
我一直劝你不要找麻烦。(表示一种情绪)
点拨：
（1）有些动词不能用于现在完成进行时，但可用于现在完成时：
状态动词be, have, exist；
情感动词like, love, hate, detest；感官动词see, hear, know, feel, sound；
短暂性动词finish, marry, get up, come, go等。
⑤They have gone to Shanghai.
他们已经去上海了。
⑥They have been to Shanghai.
他们曾去过上海。
⑦We have already finished the work.
我们已经完成了工作。(2)现在完成进行时常用的时间状语有：this month/week/year, these days, recently/lately, in the past few+时间段，since+时间点，for+时间段。如：
⑧They have been building the bridge for two months.
两个月来他们一直在修桥。
⑨They have been planting trees this month.
这个月来他们一直在植树。四、现在完成进行时与现在完成时的区别
1.现在完成时强调过去的动作对现在的影响或产生的结果，而现在完成进行时则更强调动作的延续性。
①We have been cleaning the classroom.
我们一直在打扫教室。
②We have cleaned the classroom.
我们已打扫了教室。
2.如果要明确表示现在的动作要进行下去，就得用现在完成进行时，而不能用现在完成时。③The rescue team has been working for two hours, but they still haven't found the missing boy.
救援队一直工作了两个小时，但仍然没有找到那个失踪的男孩儿。
现在完成进行时与现在完成时相比，更强调动作从过去到现在一直持续或者反复进行。
3.表示状态、感觉和心理状态的静态动词一般不会用于现在完成进行时。如果要表示状态延续到现在，可用现在完成时。
④I have known him since 1994.
我从1994年就认识他了。
不能说：I have been knowing him since 1994.4.有些延续性动词(如keep, learn, live, stay, study, work等)，用于现在完成时或现在完成进行时的区别不大。如：
⑤I have lived here for many years.
=I have been living here for many years.
我在这儿住了多年了。课件38张PPT。Meeting your ancestorsUnit 5 Section Ⅲ Using Language栏目导航Ⅰ.Read the text and match the main idea with each paragraph.
Para.1:（ ） A.The description of Dahu.
Para.2:（ ） B.How did Dahu make tools.
Para.3:（ ） C.Lala and her families made preparations for the feast.
Para.4:（ ） D.Lala worried about the preparations for the
feast and she hoped the feast could be as good as the one last year.DCABⅡ.Scan the text and choose the best answer according to the text.
1.What is the main idea of the passage?
A.The marriage life of Lala and Dahu.
B.The separate responsibilities of men and women.
C.The differences between early life and modern life.
D.The preparations for a feast.
答案：D
2.Why did Lala accelerate her walk?
A.Because she sensed wild animals following behind her.
B.Because she feared her husband would get angry for her delay.
C.Because she had to prepare the feast.
D.Because she wanted to have more time for her preparation job.
答案：A3.From the first paragraph,we can learn that the family groups lived on_____.
A.fishing B.trading C.farming D.hunting
答案：D
4.What's the best title of the text?
A.The marriage of Lala and Dahu.
B.The collection of foods.
C.The preparations for the feast.
D.The separate responsibilities.
答案：C
5.According to the text, what was Lala's attitude towards her marriage?
A.She felt so shy.
B.She felt so worried.
C.She felt very satisfied.
D.She felt sorrowful.
答案：CⅢ.Translate the following sentences from English into Chinese.
1.It was the custom of family groups to separate and then gather again at different sites for reunions as they followed the animal herds across the grasslands.
答案：由于在草原上放牧，家族成员先分散开，然后再在不同的地方相聚，这是他们的一个习俗。
2.Lala accelerated her walk up the path to the caves fearing that there might be wild beasts lying in wait for her.
答案：拉拉沿着回洞穴的路走着，她的步伐加快了，担心会有野兽在等着她。3.He had a large, square face, with strongly pronounced eyebrows and cheekbones.
答案：他的脸盘很大，方形脸，浓眉大眼，颧骨凸出。
4.They were in a pile with other sharp arrowheads and stone axe-heads.
答案：这些工具同其他一些锐利的箭头和石斧头堆在一起。Point ? significance n.意义;意思；重要性；重要意义考点一 单词点击be of significance=be significant 有意义，有重要性
be of no significance 无意义/不重要
be of great/little significance 非常/不太重要
attach (great) significance to 认为……重要，引起……的重视①His university was aware of the significance of his work.(教材P40)
他的大学意识到了他工作的重要性。
②The encouragement from a teacher is really of great significance to his/her students, especially when the students have trouble with study.
老师的鼓励的确很重要，尤其是当学生学习上出现了问题的时候。
③It is of no significance to fight for an unwinnable war.
在一场毫无胜算的战争中拼搏是毫无意义的。④We all know that the cost of heating our homes will continue to be a significant burden on the family budget.
大家都知道家庭取暖的费用将仍是家庭开支的一种巨大负担。
(1)significant adj.重要的
(2)significantly adv.显著地单句语法填空。
(1)Most students think it ___________(significance) to join the English corner, though a few haven't realized the ___________(significant) of it.
(2)Young people attach great significance to _________(become) famous.significantsignificancebecomingPoint ? somehow adv.以……方式；通过某种途径；不知怎么地；不知为什么①Somehow he cycled thirty miles to Dr. Black because there was no alternative means of transport.(教材P40)
他想办法骑车三十英里去向布莱克博士报告，因为在当时没有其他的交通工具。
②Somehow, I don't feel I can trust him.
不知什么缘故，我觉得不能信任他。
③He arrived in Beijing somehow, though I don't know how he did it.
反正他到了北京，虽然我不知道他是怎样去的。
anyhow=anyway adv. 不管怎样；无论如何；即使如此
somewhat adv.有点儿，有几分，稍微(sort of/kind of)
somehow or other 不知是什么原因；由于某种原因；以某种方式
④Somehow or other we became friends, I never knew just why it was.
不知何故我们成了好朋友，我一直不知道怎么会这样。
⑤It may be risky but we will chance it anyhow.
这可能有危险，但我们无论如何也要冒一冒险。
⑥The cake we made was somewhat of a failure.
我们做的蛋糕不太成功。
【温馨提示】 副词somehow在句中可置于句首、句中或句末。置于句首及句末时也可与主句之间用逗号隔开。选词填空（anyhow，somehow，somewhat）。
（1）We must get the work finished _________ or other by tomorrow morning.
（2）It may rain, but ________ I shall go out， I don't mind the rain.
（3）The price was __________ higher than I'd expected.somehowanyhowsomewhatPoint ? arrest vt.逮捕；吸引（注意力）；阻止
n.逮捕；拘留①She had almost reached her destination when a delicious smell arrested her progress and she stopped.(教材P43)
快到达目的地的时候，一阵香气扑鼻，她停下来，不往前走了。(1)arrest sb.for doing sth.因……逮捕/拘留某人
draw/arrest/catch/hold/attract one's attention
吸引某人的注意
get arrested 被逮捕
(2)be under arrest 在关押中
make an arrest 进行拘捕②You could get arrested for doing that.
你做那种事可能要遭到逮捕。
③An unusual noise arrested my attention.
一阵不寻常的嘈杂声引起了我的注意。
④The police made several arrests during the football match.
警方在足球赛时逮捕了一些人。单句语法填空。
(1)Don't litter in the street in Singapore, or you could ___________(arrest).
(2)He was arrested ____ drunken driving on his way to the football game.
(3)The 64-year-old Nobel laureate has spent nearly 14 of the last 20 years ______ arrest.be arrestedforunder考点二 短语诠释Point ? be/get fed up with 受够了；饱受；厌烦①Well, I'm fed up with all the attention and…(教材P41)
哦，我受够了所有的关注，还有……
get/be bored with 对……感到厌烦；对……烦闷
be/get tired of厌烦②People get fed up with anyone who brags all the time.
人们讨厌老是自吹自擂的人。
③I am fed up with his laziness and carelessness.
我受够了他的懒惰和粗心。
④We are fed up with his grumbling.
我们已经听厌了他的牢骚。
⑤I'm fed up with this weather. It's time we had some sunshine.
我对这种天气极其厌倦，我们该晒晒太阳了。
⑥Maybe you're bored with your current skills and want to learn some new skills.
也许你对自己目前掌握的技能感到厌倦，想要去学一些新技术。单句改错。
(1)—I am feeding up with endless examinations.
—Cheer up, David. Keep on until the college entrance examination ends.
解析：be fed up with厌烦。
(2)Mr. Smith was tired from the boring speech, and started to read a novel.
解析：be tired of厌烦，be tired from因……而感到累。fedofPoint ? date back to=date from 追溯到……①All the objects can be dated back to between 3,000 and 5,000 years ago.(教材P44)
所有这些东西可被追溯到3千至5千年前。
②His interest in the art can date back to a little accident in his childhood.
他对美术的兴趣可以追溯到孩童时代的一件小事。
注意：date back to可以用date from来表示，它们都无进行时态。当谈论现在的一件物品时，虽然该物品产生于过去某一时间，但时态用现在时。单句语法填空。
(1)Graffiti(涂鸦) has existed since ancient times with examples ______(date)back to Ancient Greece and the Roman Empire.
单句改错。
(2)Whether the legend is true or not, the discovery of coffee dates back from 800 AD when Africans created a coffee?berry pulp.
解析：句意：不论这个传说是真是假，咖啡的发现要回溯到公元800年，那时非洲人制造出了一种咖啡浆果浆。datingtoPoint ? look ahead 向前看；为将来打算①If only she had looked ahead and planned better this year!(教材P43)
要是她今年早有预见，计划得更好些就好了！
②I like to look ahead in imagination to what the future may bring.
我喜欢幻想未来的样子。
③A match like this always helps you to look ahead.
这样一场比赛总让你展望将来。
look down upon/on 看不起，歧视
look forward to 盼望，期望
look into 调查，研究
look through 温习，仔细检查，浏览
look up 查阅；往上看
look up to 尊敬，敬仰用由look构成的短语的适当形式填空。
（1）The government has set up a working party to __________ the problem of drug abuse.
（2）It's very noble of you to__________my old grandmother when I was out for business.
（3）You should _________ the right pronunciation of this word in the dictionary. look intolook afterlook up考点三 句型归纳Point ? if only… 但愿；要是……就好了!If only it could be just like last year!（教材P43）
要是能像去年那样该有多好啊！
点拨：本句是if only引导的一个虚拟语气句子。if only后接一般过去时的句子，表示现在没有实现的愿望；if only后接过去完成时的句子，表示过去没有实现的愿望；if only后接过去将来时的句子表示将来不太可能实现的愿望。语气上常译为“要是……就好了”。①Life would be easier,if only her husband would swear off gambling.
只要她丈夫发誓戒掉赌博，生活就不会那么艰难了。（对将来时间的虚拟）
②If only I knew what you wanted.
要是我知道你需要什么就好了。（对现在情况的虚拟）
③If only he had lived up to his philosophy of life,they would not have minded his talking over their heads.
要是他真的实践了他的人生哲学，他们是不会计较他的高谈阔论的。（对过去时间的虚拟）
【注意】 only if表示“只有，只要”， 后接让步状语从句，当从句前置时，主句采用倒装句式。比较：
④The lawyer is paid only if he wins.
律师只有赢了官司才能拿钱。
⑤Only if you have finished your homework can you go swimming.
除非你把功课做完了,否则不准去游泳。单句语法填空。
(1)If only he __________(arrive) on time, he would not have been punished.
(2)I think: if only she ___________________(diagnose) earlier, if only I were not so far away. Then hope, not guilt, would be a visitor.
解析：句意：我觉得，如果再早一点诊断的话，如果我住在离她不那么远的地方，那可能还有希望，我感到的就不会是愧疚了。had arrivedhad been diagnosedPoint ? only to do…不料，结果却……Abruptly she sat down,only to be scooped up by her laughing,shouting sister,Luna.（教材P43）
她突然坐了下来，结果被爱吵闹的妹妹露娜一把抱了起来。
点拨：句中only to do 是不定式作结果状语，意为“不料，结果却”,表示出乎意料或令人失望的结果。①I hurried to the post office only to find it closed.
我匆匆地去邮局，却发现它已经关门了。
②They reached the company out of breath only to be told they were fired.
他们上气不接下气地赶到公司,不料却被告知他们被开除了。
不定式和现在分词作“结果”状语的区别
（1）不定式作结果状语时，表示其动作发生的结果在谓语动词之后，往往表示未曾预料到的或令人不快的结果，不定式前常加only；另外，还用于too…to,enough…to,never…to,so/such…as to等固定结构中。
③He hurried to the station, only to find that the train had left.
他匆忙地赶到车站，结果发现火车已经开走了。
④She wanted to do a good deed, only to be scolded by her teacher.
她想做件好事，不料反而受到老师的斥责。
（2）现在分词作结果状语时，表示伴随谓语动词的发生而产生的自然结果（同时发生），有时在前面加上thus/so/thereby/therefore，谓语动词与现在分词的动作是因果关系。
⑤Agriculture has developed rapidly, thus providing light industry with ample raw materials.
农业迅速发展，从而为轻工业提供了充足的原料。
⑥He dropped the glasses on the ground, bursting it into pieces.
他把眼镜掉到了地上，摔成了碎片。单句语法填空。
(1)With her encouragement, he applied for a job with Fuller Brush Co., only _____________(turn) down.
解析：句意：在她的鼓励之下，他向福勒牙刷公司申请了一份工作，结果却遭到拒绝。这里是不定式表意料之外的结果。
(2)At the end of the festival, the branches are thrown into the river, thus _______(take) bad luck away.
解析：句意：在庆典结束后，人们把树枝丢到河里让它们随波流走，这样会把厄运一起带走。现在分词作状语，表示自然的结果。 to be turnedtaking课件10张PPT。Meetings your ancestorsUnit 5 Section Ⅳ Guided Writing【写作技巧】
1.基本结构
介绍考古发现属于说明文的范畴，一般要从发现地点、古迹特点及其所带来的影响三个方面描述。
2.注意的问题
(1)要对考古所发现的古迹的形状、历史年代和作用进行描述；
(2)描述考古发现的地点，具体地点要求写清楚，以便让读者知道具体的位置；
如何写考古发现
(3)对于考古发现的介绍兼有记叙文和说明文的特点。人称应以第三人称为主，时态应以现在时为主；
(4)此类文章的语言要准确，词句要恰当，并尽可能多地使用结构稍复杂的句式来表达丰富的信息。同时要确保行文连贯，衔接或过渡自然，借以将有效的信息传达给读者。【常用句型】
①Perhaps there was…
②Is there any…on the…?
③It could be…because…
④It's at most four meters long/in length.
⑤I think it is almost six meters wide.
⑥Our evidence shows that…
⑦It could be made from…
⑧It seems that…
⑨What do you think of…?
⑩We think that…【典题示例】
下列图片反映了汕头“南澳一号”水下考古发掘情况。大约有300多名考古学家不顾危险参与了打捞，他们已经打捞上了2000多件远古瓷器。该船表明当时对外贸易的繁荣和当时中国造船技术非常发达。这对中国乃至全世界船舶业的研究有着重大意义。参考词汇：打捞salvage; 大船vessel; 瓷器porcelain
注意：1.词数：100左右
2.要适当发挥想象
3.尽可能运用本单元所学的词汇、句型和语法。Archaeologists have been excavating the ancient sunken vessel, Nan'ao One, in the South China Sea. Around 300 archaeologists participated in the underwater work regardless of the danger.
The sunken merchant vessel is in the South China Sea, near Nan'ao Island off the coast of Guangdong Province.The archaeologists also examine the remains of the ship itself. They have salvaged more than 2,000 porcelains. Archaeologists are excited at the discovery of some new types of porcelain.
Since its discovery in the South China Sea, the mystery of the ship has been getting the archaeologists and historians interested. The ship suggested that at that time China was a pioneering nation with skillful, advanced ship-building technology, which will be of great significance to the study of shipping industry at home and abroad.Ⅰ.审题谋篇
1.本文是有关考古发现的记叙文，用一般过去式和现在完成时。
2.写作要点：①考古学家一直发掘“南澳一号”；②沉船的位置；③打捞沉船；④反映古代中国贸易繁荣以及航海发达。
Ⅱ.写作要点
1.在中国南海，考古学家对古沉船“南澳一号”的发掘工作一直在继续。
①Archaeologists have been excavating the ancient sunken vessel, Nan'ao One, in the South China Sea.
②Excavation work has been continuing in the South China Sea on the ancient sunken vessel, Nan'ao One.2.由于是在中国南海发现的，该船的神秘一直让考古学家和历史学家非常感兴趣。
①Since its discovery in the South China Sea, the mystery of the ship has been getting the archaeologists and historians interested.
②Since it was discovered in the South China Sea, the mystery of the ship has kept the archaeologists and historians interested.
3.该船表明当时中国是造船技术非常有技巧及先进的国家。
①The ship suggested that at that time China was a pioneering nation with skillful, advanced ship-building technology.
②The ship showed that at that time China was a pioneering nation, whose ship-building technology was skillful and advanced.
