unit 15 vocabulary and grammar

Welcome to our class


- Orbit:
- Cosmonaut:
- Weightlessness:
- Gravity:
- ( to) lift off:
I. VOCABULARY:
Phóng lên
(n) quỹ đạo
(n) Phi hành gia = astronaut
(n) trọng lực
(n) trạng thái không trọng lực


 Extreme (adj) /iks'tri:m/: rất xa
 Psychological tension (n): sự căng thẳng về tâm lý
 Technical failure (n): lỗi kỹ thuật
 Venture (n) /'vent∫ə/: mạo hiểm
 Feat (n) /fi:t/: kỳ công, thành quả
 React (v) /ri:'ækt/: phản ứng trở lại, tác động trở lại
 Deal with (v): đối phó, giải quyết, xử lý
 Enormous (ajd) /i'nɔ:məs/ = huge: to lớn, khổng lồ

II. Grammar
1. could/ be able to:
Eg: - He was an athlete ,so he could run fast?
- His leg was hurt but he was able to run fast ?

Structures: S + could + V( bare inf)

S + was/ were able to + V (bare inf)
* uses: => Could: din t 1 kh nng chung trong quỏ kh.
=> was/ were able to: dùng để diễn tả một nỗ lực thành công
trong quá khứ.

2. Tag questions:
Eg: It’s a beautiful day, isn’t it?

You haven’t done your homework, have you?
=>
Structure: khẳng định, phủ định ?
phủ định, khẳng định ?


- Let’s + V(bare), shall we ?
- (Please +) V(bare) , will you ? (câu mệnh lệnh)
- I am ……, aren’t I ?
- This / That (is ……), (isn’t) it ?
- These / Those (are ……), (aren’t) they ?
- There is / are ……, isn’t / aren’t there ?
- Nobody / No one + V(khẳng định) …, auxi / modal (kh¼ng
®inh) they ?
- Everthing/something/anything , it?
- Everybody/ everyone/ someone/ , they?
- S + never / rarely / seldom / no longer…,VERB (khẳng
định(+) + S ?
Special Cases

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3

4
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1. do Exercise again .
2. Prepare for new lesson
IV. HOME WORK




Our school has many trees,………… ?
hasn’t it

The fire was spreading quickly but in
the end I could put it out
was able to

She didn’t able to find him
although she had gone every
where.
wasn’t

isn’t it

7. Use( could or was able to ) to fill in the
sentence ?
The bus was crowded with people but
finally I …………….find a seat.
was able to

8. Ha and Mai don’t want to
become doctors,……………?
do they