Unit 15 : vocabulary - grammar

UNIT 15: SPACE CONQUEST
VOCABULARY:
Fill in the blanks: success, historic, weightless, achievement, tragic, approximately, tension,
failures, crash, cosmonaut, space, lifted off
1. Our recent _____ in medicine is the development of laser in treating cancer.
2. Before Gagarin’s _____ flight, there were still enormous uncertainties
3. Although his flight lasted only 108 minutes, its _____ made him a national hero.
4. Yuri Gagarin is a Soviet _________.
5. _____ 60,000 people filled the stadium.
6. Laughter can be a great release of _____.
7. If there were a technical _____, he might be fired.
8. On 12
th
April, 1961, Gagarin __________ into space aboard the Vostok 1.
9. He died in a plane ______ on a routine training flight in March 1968.
10. Astronauts work in ______ conditions.
11. Many spacemen could never get back to the Earth because of _____ accidents
12. ____ is the empty area outside the Earth's atmosphere, where the planets and the stars are.
GRAMMAR:
1) COULD, WAS/WERE ABLE TO (có thể, có khả năng)
1.1. Could: được dùng để chỉ khả năng nói chung hoặc được phép làm điều gì trong _________
Ex: My grandfather was very clever. He ________ speak five languages.
1.2. Was/were able to: bên cạnh chỉ khả năng COULD, còn được được dùng để chỉ khả năng xảy ra
ở một tình huống cụ thể trong ________.
Ex: A girl fell into the river, but luckily we were able to rescue her.
*CHÚ Ý: đối với câu phủ đònh, có thể dùng COULD NOT hoặc WAS/WERE NOT ABLE TO.
Ex: My father couldn’t swim. (=My father wasn’t able to swim.)
TÓM TẮT: COULD WAS/WERE ABLE TO
Khả năng nói chung Khả năng cụ thể
Underline the correct or more natural answer. If both answers are possible, underline them both.
1. Valuables can / are able to be left in the hotel safe. Please ask at the reception desk.

2. We could / were able to finish the football match before it started snowing too heavy.
3. The rebels could / were able to draw on the support of over 20,000 soldiers.
4. Could you / Were you able to understand Professor Larsen's lecture? I found it really difficult.
5. 'Do you want a game?' 'Sorry, I can't / 'm not able to play chess.
6. Look at me, I can / 'm able to ride my bike without any help.
7. When the fire officers arrived they could / were able to put out the flames in a couple of minutes.
8. The air was so polluted in the city center, I could hardly / was hardly able to breathe.
9. I knew John had been smoking. I could / was able to smell the cigarettes when I came into the room.
10. Can you / Are you able to drive without your glasses?
11. No changes can / are able to be made to this rail ticket after purchase.
12. He could / was able to untie the ropes without the guards noticing.
13. She looked all over the house, but couldn't / wasn't able to find her keys anywhere.
14. I was very busy at work; but I could / was able to have a couple of days off last week.
15. She swam strongly and could / was able to cross the river easily, even though it was swollen by the
heavy rain.
2) TAG QUESTIONS (caâu hoûi ñuoâi): THE STATEMENT (A), TAG ENDING (B)?
Nếu A là câu Khẳng Định, B sẽ là câu _________, và ngược lại nếu A là câu Phủ Định,
thì B sẽ là câu __________: She’s gone, hasn’t she? She hasn’t gone, has she?
Ex1: You are a student, _______________ ?
Ex2: The film wasn’t very interesting, ________________?
Ex3: Mary does a lot of homework every day, ____________________?
Ex4: John didn’t go to school yesterday, ____________________?
Ex5: We have seen this film twice, ____________________?
Ex5: They can swim very fast, ____________________?
Reminder: Am I not? is formal; Aren’t I? is informal
Ex6: I am a student, am I not ? = I am a student, aren’t I ?
Add question tags to the following statements
1 You’ve never been in Hawaii, __________________?
2 She’s not going to have to take another course, ___________?
3 She shouldn’t smoke, _____________________________?

4 He’s had many different kinds of jobs, _______________?
5 He’s an engineer for a government agency, _____________?
6 Bob and Mary have to go home now, ____________________?
7 Bill and Henry have gone, ________________________?
8 She’s recently been ill, ________________________?
9 There’s something cooking on the stove, ___________?
10 You had a good time at the game, ________________?
11 It’ll be cold tomorrow, ____________________?
13 He’s never on time to work, __________________?
14 There were a lot of people at the concert, _________?
15 I’m going to be with you tomorrow night, __________?
16 Mary had to cook dinner, ________________________?
17 John has had several operations this year, _____________?
18 We’ve studied a lot of things so far, ______________?
19 You weren’t at the last meeting, ___________________?
20 They’ve never had a child, ________________________?
22 You can type well, _____________________?
23 I’m not pronouncing your name correctly, _______________?
24 She hasn’t been enjoying herself lately, ____________?
25 He hurt himself in the accident, ____________________?
26 It never works very well, ________?
27. Neither of them offered to help you, ________?
28. Let's go out for dinner tonight, ________?
29. That isn't Bill driving, ________?
30. Nothing went wrong, ________?
31. Not a very good film, _________?
32. They think he's funny, ___________?
33. Do it right now, ______?
34. He seldom goes to the library, ______?
NOTE: ______________________________________________________________

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