Bài 1:

Cho tam giác ABC vuông tại A, đường trung tuyến AM. Trên tia đối của tia MA lấy điểm D sao cho MD = MA.

a) Tính số đo của góc ABD

b) Chứng minh: tam giác ABC= tam giác BAD

c) So sánh độ dài AM và BC

Bài 2: Cho tam giác ABC có BM và CN là hai đường trung tuyến cắt nhau tại G. Trên tia đối của tia MB lấy điểm E sao cho ME = MG. Trên tia đối của tia NC lấy điểm F sao cho NF = NG.

a) Chứng minh: EF = BC

b) Chứng minh: tam giác FAE= tam giác BGC 

Bài 3: Cho tam giác ABC cân tại A, có AB = AC = 10cm; BC = 8cm. Gọi G là trọng tâm của tam giác ABC. Tính AG, BG, CG. 

I. What do you say in these situations? Complete each sentence with a relative clause.

0. Your friend lost some keys. You want to know if he has found them.

You say:Have you found ....................the key you   lost..................................?

1. A friend is wearing a dress. You like it.

You tell her:I like the dress.............................................................. .

2. A friend is going to see a film. You want to know the name of the film.

You say:What’s the name of the film...............................................................?3. You wanted to visit a museum. It was shut when you got there.

You tell a friend:The museum ......................................................... was shut when we got there.

4. You invited some people to your party. Some of them couldn’t come.

You tell someone:Some of the people......................... couldn’t come.

5. Your friend had to do some work. You want to know if she has finished.

You say:Have you finished the work ..........................?

6. You rented a car. It broke down after a few miles.

You tell a friend:The car ..........................................broke down after a few miles.

II. Look at the statements below about the history of computer games. Read the text below to decide ifeach statement is correct or incorrect. If it is correct, write A. If it is incorrect, write B.

7. The first video games were used to make defence systems. ................

.8. Most homes contained a mainframe computer in the 70s. .................

9. Students developed mainframe games to earn money. .................

10. The first arcade games were black and white. .................

11. Pac-Man is an arcade game. .................

12. Arcade games were most popular in the late 70s. .................

13. Arcade games became less popular as consoles improved. .................

14. Modern game equipment is getting smaller. .................

15. Online games are always played alone. .................

16. You can try out an old-fashioned arcade game at George’s Games. ................. 

THE HISTORY OF COMPUTER GAMESbrought to you by George’s Games 

Early ideas

The origin of video games lies in early missile detente systems in the late 1940s. These were later adapted intosimple games during the 1950s. Eventually video games diverged into different types: mainframe, arcade,console, personal computer and later handheld games.

Mainframe Games

Game development blossomed in the early 70s, using huge University mainframe computers. There is littlerecord of these games, as they were not marketed, or available to the public. The students creating them oftendid so illicitly by making questionable use of very expensive computing resources, and so kept their work secret.

Rise of the Video Arcade

The arcade game industry entered its Golden Age in 1978 with the release o' Space Invaders by Taito, a successthat inspired dozens of manufacturers to enter the market.Colour arcade games became more popular in 1979 and 1980 with the arrival of titles such as PacMan. TheGolden Age of video arcade games reached its zenith in the 1980s.

The Game Console and Home Computer

With improvements to consoles in the 90s, home video games began to approach the level of graphics seen inarcade games. An increasing number of players would wait for popular arcade games to be adapted for consolesrather than going out. Home computers also became cheaper, more widespread and gained gaming abilities.

Today and Tomorrow

Today’s technology is changing rapidly. The newest developments include hand-held and mobile phonegaming, huge online games with many players, alternate reality games such as Second Life, and games, such asFarmville that are linked to social networks.For more information, the latest games products, and to play a selection of authentic vintage arcade games, visitus at George’s Games conveniently located at the Central Entertainment Complex on Derby Road.OPENING HOURS: 4-10pm, Sunday-Thursday 12 noon – 12 midnight, Friday and Saturday

I. Choose the correct answer.
0. Can you tell me what time the bus leave / does the bus leave?
1. Excuse me. There’s / Is there a supermarket near here?
2. Do you know when will be Mr Jones / Mr Jones will be at home?
3. Could you tell me do you have this sweater / if you have this sweater in green?
4. Has the bank closed / The bank has closed for the day?
5. How much do these shoes cost / these shoes cost?
6. Can you tell me how long does it take / it takes to get to Oxford?
7. Is the station / The station is far from here?
8. Do you know if is there / there is a Bureau de Change near here?
II. These people are looking for a holiday. Look at the descriptions of eight holidays (A-H). Decide which holiday (A-H) would be most suitable for each person (9-13).
9. Jackie is 18 and wants to go on holiday with her best friend Sarah. They are both starting university in
September to study archaeology. They went to relax and swim a lot but also want to go on some
excursions. They don’t have much money.
10. John is retired. He loves birdwatching. He and his wife would like to go somewhere beautiful and
peaceful. They don’t want to have to cook on holiday and they would prefer to stay in a place that is not
noisy in the evenings.
11. Stephen is very sporty and easily gets bored. He doesn't enjoy sitting on the beach all day. He likes
meeting new people on holiday and enjoy lively, late nights out. He’d prefer accommodation without
meals included.
12. Sandra and Dave have two young children aged six end eight. They like to go to places where there
are facilities for children and adults. Dave quite enjoys water sports but Sandra prefers to play on the
beach with the children.
13. Mary is 68. She is a widow. She likes to visit interesting pieces and is very interested m history, art and
culture. She doesn't want to cook on holiday and likes to meet new people She enjoys being in warm
countries.

HOLIDAY CHOICES

A. Oceanview Village
Our beautify holiday village offers self-catering
accommodation in beautiful surroundings close to
the beach There is evening entertainment every
night and an afternoon kids’ club which is run by our
team of trained staff. Excursions are available three
times a week. ............

B. Oaktree Park Hotel
Situated in beautiful grounds in the countryside,
Oaktree Park offers first-class accommodation with
delicious menu offered by our award-winning chef.
The landscaped grounds include a stunning lake and
nature reserve. A beautiful retreat for anyone who
wants to get away from it all for a while. ............
C. Kidsland Adventure Park
A child’s heaven, Kidsland caters for children aged
11 to 18. Accommodation is in ten-bed chalets with
adult supervision. We offer sport, art and craft,
computer technology, music, cookery lessons and
lots more. Leave your children with us for a week or
two and they will make friends for life. All meals
included and entertainment provided every night.
................

D. Bob’s Diving Centre
We offer courses for both beginners and more
advanced divers. Also on offer are various
watersport activities including jetskis, surfing and
water volleyball. Self-catering accommodation at
affordable prices with a handy shop on-site for alt
your supplies. Evening entertainment arranged
every night plus a weekly barbecue. ................

E. Sandybeach Hotel
Situated in a small but lively resort. Sandybeach
hotel is only a two-minute walk from a glorious
beach. There are plenty of bars and restaurants
nearby and a nightclub where you can dance until
the early hours of the morning. Breakfast and
evening meal are included in the remarkably cheap
price and best of all, two day trips to local places of
interest and historical sights are included in the
package, too. ................

F. Desert Walking Holidays
Give yourself a challenge this year and cross a
desert. Organised trips (camels included to carry
your bags). Professional guides will lead you
through the sand. Campfire cooking and fantastic
landscapes. Trek all day and enjoy quiet nights
round the campfire under starry skies. ................

G. Scandinavian Cruises
Experience the beauty of the north. Watch the
amazing Northern Lights in the Scandinavian sky.
Double or single cabins available with full-board
catering. Don’t forget to bring your winter coat for
those romantic moonlit walks on deck in the snow!
................

H. Woodside House
A beautiful hotel in the heart of the city but
surrounded by lovely gardens. Come and enjoy a
relaxing holiday in luxury. Within easy walking
distance of the main sights and places of culture. We
also offer art classes and lectures on cultural issues.
Learn to make a ceramic pot or improve your
painting or photography skills. Sorry, no children
allowed. ................

G

I. Complete each sentence using TWO TO FIVE words, including the word in bold.
1. I’m afraid of water. That’s why I never swim in the sea. which
→ I’m afraid of water, .......................................................................................................swim in the sea.
2. The boy broke the window. He said he was sorry. who
→ The boy ..................................................................................................................... said he was sorry.
3. He lent me some money. That was very kind of him. which
→ He lent me some money ............................................................................................................ of him.
4. Michael lives next door to me. He is an architect. who
→ Michael ............................................................................................................... to me, is an architect.
5. This is the suit. I bought it last week. It doesn’t fit me. which
→ This suit ......................................................................................................................... doesn’t fit me.
6. She interviewed a man. He is my father. whom
→ The man ............................................................................................................................ is my father.