人教版B8 Unit 5 Meeting your ancestors Learning about language课件43张

课件43张PPT。Unit 5 Meeting your ancestors Learning about language1 Complete the passage using the
correct form of the words and phrase. Discovering useful words and expressions alternative sharpen identify
regardless of aware excavation
assume ample primitive due Davidson Black was a Canadian doctor who
organized the ____________ that led to the
discovery of the bones in the Zhoukoudian
caves near Beijing. He was a specialist in the
study of bones and it was his ambition to find
and ________ bones of early humans. His
university was ______ of the significance of
his work. excavationidentifyawareAt first they gave him ______ time to do this
research, but later they realized he was
prepared to pursue it ______________ his
students’ needs and his teaching career, so
they forbade him to travel there any more.
It was his assistant, Pei Wenzhong, who made
the discovery of these ________ bones and
_________ stone tools. ampleregardless ofprimitivesharpenedSomehow he cycled thirty miles to Dr Black
because there was no __________ means of
transport. Dr Black ________ this discovery
would change the way academics thought
about early people in China. He knew that his
success was almost entirely ____ to his
assistant’s systematic hard work. due alternativeassumedon behalf of in spite of regardless of
ahead of because of instead of 2 Complete these sentences using the
correct form of the phrases below. 1. Nobody has the right to spit in the
street _____________ their social
position or age. regardless of2. _________ the song’s popularity, the band
deleted it from their new album as they failed
to find one who could sing it well enough.
3. Sophie got a bad scratch from her cat
__________ her carelessness while playing
with it. In spite ofbecause of4. Sam made a tentative guess that six months
of his flying course lay ________ him.
5. The vice president gave a welcome speech
____________ the Academy of Arts at the
exhibition.
6. The guest waited patiently at the
receptionist’s desk ___________ interrupting
the meeting. instead of ahead ofon behalf of starvationanalysisacute3 Complete these sentences with words or phrases from the text. Make sure to use the correct form. Since the famine broke out, the number of people dying of __________ has been increasing.
The doctor’s ________ stated that she has suffered from ______ anxiety for a long time.3. This is really a ______ bookshelf and I
think you should organize it well and
put the books in __________.
4. Do you know the best way to stop
crying when _________ onions?
5. I will pay just 120 yuan for the quilt
________ because I only have that much
in my wallet.
6. This table mat is ten square ___________,
and you can get a dozen for only one dollar. at mostcentimetresmessycategoriescutting up现在完成进行时现在完成进行时表示动作从过去某一时间
一直延续到现在或离现在不远的时间。
其动作是否延续下去, 则由上下文而定。
现在完成进行时多用持续性动词如live, learn,
lie, stay, wait, stand, rest, study等, 常和all
the time, this week, this month, all night, all
the morning, recently等状语以及since和for
引导的时间状语或从句连用。May 20 0:10May 20 11:00My younger brother has been accessing the net.nowThe baby has been sleeping for 1 hour.nowThey have been playing basketball all the day.NowNowThe boy has been reading a book for almost 4 hours. He has been talking with his friend.nowThe telephone has been ringing for
almost a minute. The sound has continued
about one minute.The telephone is ringing.2010-5-20 11:002010-5-20 13:00The young boy has been watching TV.nowTV10-5-19The two robots have been dancing and singing since they have been made.Nowin the morningI don’t know why the pig has been running.nowrunThey has been playing games in the school.nowPlay gamesOh, you have come at last! I have been waiting
for you for two long hours.
(我等了你足足两个小时)13:0015:00 I’m sorry!You have been crying. (你一直在哭)You are here! I have been looking for
you long. (我找了你老半天)我一直都在这现在完成进行时1. 构成形式: hashave been doing2. 用法
1) 叙述某一动作从过去开始一直继续到现在
仍在继续之中或刚刚停止。经常与for,
since, all morning/day/week用在一起。You have been studying for four straight hours.
Why don’t you take a break?
The telephone has been ringing for almost
a minute. Why doesn’t someone answer it?2) 叙述“最近”一直从事的工作或活动。 lately, recentlyWhat’s the matter? Your eyes are red and
puffy. Have you been crying?
你是不是一直在哭?3) 表示重复动作。有时现在完成进行时所
表示的动作并不是在一直不停地进行, 而是
在断断续续地重复。
I have been knocking. I don’t think anybody’s
in. 我一直在敲门, 我想没人在里面。
You’ve been saying you can succeed for
five years. 5年来你一直在说你能成功。
I have been writing letters since breakfast.
我从早餐起就一直在写信。4) 表示“刚才、近来”发生的动作, 一般不再继续。
此时一般通过上下文的语境进行判断。
My hands are dirty. I’ve been painting the door.
我的手很脏, 我一直在漆门。
What have you been eating to get as fat as this?
你都吃什么啦, 怎么这么胖？5) 叙述从过去某时开始一直继续到现在, 但不再
继续下去的事情。带有浓厚的感彩, 强调
持续了“那么久”或做得“那么辛苦”。
I have been wanting to meet you for a
long time. 和你见面是我盼望已久的事了。
Too much has been happening today.
今天真是一个多事的日子。
Oh, you have come at last! I have been waiting for
you for two long hours. 我等了你足足两个小时。
You are here! I have been looking for you long.
我找了你老半天。现在完成进行时与现在完成时的区别现在完成时表示结果, 其动作发生在过去，
但对现在有影响; 而且现在完成时也可
表示动作的持续。而现在完成时表示比较
长久的动作和状态, 而现在完成进行时
表示较短暂的动作和状态, 而且强调
持续性或未暂停性。He hasn’t worked for years.
他多年来一直没有工作。
I haven’t been working very well recently.
我最近工作不太顺利。
They have built several bridges so far.
到目前为止, 他们已建了好几座桥。
They have been building bridges so far.
到目前为止, 他们一直在建桥。1. China sent up Shenzhou V manned
spaceship into space successfully, which
shows science and technology ________
rapidly in China.
A. have been developing B. develops
C. is developing D. had developedPractice解析:答案A。该题考查现在完成进行时,
表示动作的持续。A 2. Mrs. White became a teacher in 1985. She
______ for twenty years by next summer.
A. will teach
B. would have taught
C. has been teaching
D. will have been teaching解析:答案D。该题考查将来完成进行时。D 3. --Hi, Tracy, you look tired.
--I am tired. I _________ the living
room all day.
A. painted B. had painted
C. have been painting D. have painted解析: 答案C。该题考查现在完成进行时。C 4. The two friends ________ on the Internet
for three hours, and they would go on till
the next morning.
A. had been chatting B. had chatted
C. were chatting D. have been chatting解析: 答案D。该题考查现在完成进行时。D 5. Now that she is out of a job, Lucy ________
going back to school, but she hasn’t decided yet.
A. had considered B. has been considering
C. Considered D. is going to consider解析: 答案B。题意为既然已经不上班了, 露西一直
在考虑重新回到学校, 不过她还没有决定。has
been considering 为现在完成进行时, 主要表现在
以前这一段时间里一直在进行的一个动作, 这动作
仍然在进行, 也可能停止了一会。B 6. ----How long _________ in the factory?
----Since 1990.
A. were you working
B. have you been working
C. had you been working
D. will you work解析:答案B。该题考查现在完成进行时。B 7. The first use of atomic weapons was in 1945,
and their power _______ increased
enormously ever since.
A. is B. was
C. has been D. had been解析: 答案C。该题考查现在完成时。现在
完成时表示到现在为止完成了; 现在完成
进行时表示从过去持续到现在, 而且将来
继续进行。C 8. ----Hi, Alan, I have’t seen you for weeks.
What _________ recently?
----Studying.
A. have you been doing
B. have you done
C. were you doing
D. did you do解析: 答案A。该题考查现在完成进行时。A 9. ----Hi! We have not seen each other for
almost two years.
----I _______ in a company as a secretary.
A. had worked B. have worked
C. worked D. have been working解析: 答案D。该题考查现在完成进行时。D I _______ letters this morning and _____
for four hours so far.
A. will write; wrote
B. have written; have written
C. was writing; wrote
D. have been writing; have written解析: 答案D。该题考查现在完成进行时和
现在完成时。题意为我今天早上一直在写信，
到目前为止已经写了4个小时。D 11. — I have got a headache.
— No wonder. You ______ in front of
that computer too long. (江西2009)
A. work B. are working
C. have been working D. worked
12. Cathy is taking notes of the grammatical
rules in class at Sunshine School, where
she _____ English for a year. (湖南2010)
A. studies B. studied
C. is studying D. has been studyingC D HomeworkReview the usage of present
perfect continuous tense.