Unit 9 Wheels Lesson 3 Clean Machines 北师大版
Lesson 3 Clean Machines
Name Hongqi Made in China
Made in Germany
Made in Germany
Made in America
Made in Germany
Made in France
Honda Made in Japan
The car has an important effect on
our life. Can you talk about it? Including its disadvantages. In your opinion, how should we improve the car?
Why do scientists develop the kind of car?
What’s this? Where do the cars get their power from? Solar Car
Scientists have been making solar cars for over twenty years. They have made cars that go up to 80 k. p. h.!
What do you want to know anything
else about solar cars?
Read the passage and circle the best answers.
1. If the weather is bad, there is no sun A. you can’t use solar car. B. you have to use petrol in solar car. C. you can use solar car. D. you must slow down the speed at 40 k.p.h.
2. It can be inferred from this text that: A. there is no doubt that solar cars have been more and more popular. B. you can take a long trip by solar car. C. solar cars are cheap, clean and safe.
D. Marie Logan is a professor from
3. All the facts are mentioned except for _____. A. solar cars will not pollute the environment. B. a lot of people haven’t realized the potential of solar cars. C. solar cars speed is becoming faster. D. solar cars shapes are special.
Read the interview about solar cars.
Are these statements true or false? 1. Marie Logan began designing cars when she was a student.
T 2. She has won most of her races. F 3. The team has nearly finished
building a solar car. F
4. Marie has written a book about F 5. Solar cars can work even in solar cars.
cloudy weather. T
1. be worried about 为某事担心, 焦虑
The whole family were worried about his safety.
What are you worried about?
2. so far 到现在为止
They have so far failed to get in touch with the company.
So far this month we have covered ten lessons in our grammar book.
3. persuade…of 使……信服某事 She was not persuaded of the truth of his statement.
He managed to persuade us of the workability of the plan; now we had to persuade the boss.
persuade sb. to do sth. 劝说某人做某事
The salesman persuaded us to buy his products.
4. reach 达成, 达到
The cost of the war reached billions
No agreement was reached between the two nations.
The woods reach as far as the river.
Can you reach the top shelf?
We use the Present Perfect to talk
about a finished activity (achievement)
and the Present Perfect Continuous to
talk about an unfinished activity.
I’ve read Hamlet. I’ve finished reading it. I’ve been reading hamlet.
I haven’t finished reading
We use the Present Perfect to focus
on a result of an activity, especially
when we give a number or quantity. We use the Present Perfect Continuous to focus on the activity itself, especially to explain visible consequences of it.
He has run three miles. focus on the result: He has covered the distance of three miles. He has been running for an hour. focus on the activity and its consequences: This is what he has been doing for the last hour and why he is exhausted now.
Which sentence, a or b fits each
1. You want to find out why someone is late. a) What have you been doing? b) What have you done?
2. You want to talk about your success in your golf training programme. a) I’ve been running today.
b) I’ve played for six hours today.
3. You want to complain about your garage. a) They’ve been repairing my car for over a week. b) They’ve repaired my car.
Put the verbs in brackets in the Present Perfect or Present Perfect Continuous.
Mike: At last! Where ____________ have you been
(be)? I have been waiting (wait) ________________
for an hour.
Helen: Sorry, I ’ve been _____________ (talk) talking haven’t to an old friend. I ___________
seen (not see) her for years. And
imagine, we met in the middle
of the street, just like that.
Mike: What ___ she __________(do) been doing has
since you last saw her?
Helen: She ’s been ______________ (work) as a telephone operator in a hotel working but she wants to change her job. She ___________________ (not hasn’t been getting get on ) well with her boss on
Mike: Our company is looking for an
operator. (8) ___________ Has she had
(have) any interesting offers
Helen: I don’t think so. She hasn’t been __________ _______ (not look) looking for a long time. She just has just started
Mike: Then tell her about this offer.
She’ll appreciate it.
1. More patients ____ in hospital this year than last year.
C. has been
B. had been treated
D. have been treated
2. 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
3. She has set a new record, that is, the sales of her latest book ___ 50 million. A. have reached B. has reached C. are reaching D. had reached 4. How can you possibly miss the news? It ____ on TV all day long. A. has been B. had been C. was D. will be
5. --- __ David and Vicky __ married? --- For about three years. A. How long were; being
B. How long have; got
C. How long have; been D. How long did; get
6. ---- 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
Finish Exercises on P41.
Thanks for attending!!