vào gôn hả??????????????????????

Bài 1: Finish the second sentences so that it has the same meaning as the first one:

1. Lan's brother gave her a story for her birthday

=> Lan was given a story by her brother for her birthday

2. It was such a bad news that Mai burst into tears

=> The news was so bad that Mai burst into tears

3. If Hong doesn't study harder, she'll fail the exam

=> Unless Hong studies harder, she'll fail the exam

4. I'd like to visit England more than any other country in the world

=> England is the country i'd like to visit the most in the world

5. The flight to HCM city lasted one hour and a half

=> It took us one hour and a half to fly to HCM city

6. Computers are used to design new models

=> People use computers to design new models

7. When did you start working in that factory?
=> How long have you worked in that factory

8. It isn't necessary for students to wear uniforms today

=> Students don't have to wear uniforms today

UCLN(360 ; 756) = 2².3²

Có (2+1)(2+1) = 9 ước chung 

Viết câu tương đương

1.Where does she live?

What is her address?

2.What do you do?

What is your job?

3.How old is your sister ?

What is the age of your sister?

4.Nam works more hours than Lan

Lan works fewer hours than Nam

5.Spring has more flowers

There are more flowers in spring

6.Would you like to play games ?

Will you play games?

unit 1:

1. do you have many friends?

yes, i do

2. who is your best friends?

Mai, Thu is my best friends

what does he/she look like?

They're both nice

what is he/she like?

Mai is helpful and clever, Thu is pretty and intelligent

3. what do you and your friends often do on the weekend?

We often go to the park on the weekend

unit 2:

1. do you have a phone number?

yes, i do

2. who do you ofter phone?

i often phone my mother

what are you going to do on the weekend ?

i am going to sleep in until 9a.m

3. how ofter do you go out with your friends?

once a week

unit 3:

1. what do you ofter school?

i go home and help my mother with the housework

2. do you ofter do the housework?

yes, i do

3. do you ofter help your mom with the housework?

yes, i do

unit 4:

1. what did you use to do last year?

i used to wake up late last year

2. do you like reading traditional stories?

yes, i do

3. which stories did you use to read when you were young?

i used to read folk tales when i was young

4. which story do you like best?

Tam Cam

unit 5:

1. do you like learning English?

yes, i do

2. do you ofter practice speaking English with your friends?

yes, i do

3. what do you do to improve your English?

I listen to English music , watch English films, read books in English

unit 6:

1. what do you do in your free time?

i surf the internet in my free time

2. do you often help the old people?

yes, i do

3. what do you ofter do to help them?

i often help them cross the streets

unit 7:

1. where do you live?

I live in Ha Noi

2. do you like your neighborhood?

Yes, i do

3. what are there in your neighborhood?

there is a shopping mall, a bakery, a bookstore, a restaurant and a hospital in my neighborhood

unit 8:

1. do you like to live in the country or in the city? why?

I like to live in the city because i enjoy the noisy atmosphere of the city

2. how long have you lived there?

i've lived there for 13 years

1. You can sail and enjoy a (health)healthy oudoor life.

2. She preferred to (social)socialize with her friends.

3. Durring the shadow puppet shows, people can listen to and enjoy (trdition)traditional music.

4. Those chilren are all(excite)excited about going on an excursion to Hong Linh mountain next week.

5. You'll become a famous (music)musician one day.

6. The noise of the train kept Peter (awake)awake.

7. Oh, you look more (attract)attractive in that new dress.

8. My father enjoys watching news because it"s very (imform)informative.

9. Catching the common cold is very (please)unpleasant for everyone.

10. My (teen)teenagers like to take partin outdoor activities.

a)  0,a * 0,b * a,b = 0,bbb

          a * 0,1 * b * 0,1 * a,b * 0,1 = bbb * 0,001

          a * b * ab * ( 0,1 * 0,1* 0,1) = bbb * 0,001

          a * b * ab * 0,001               = bbb * 0,001 ( bạn gạch 2 số 0,001 của 2 vế nha )

          a * b * ab                          = b * 111 ( vì sau khi gạch 0,001 thì chỉ còn bbb mà bbb = b * 111 , gạch hộ lun b nha )

          a * ab                               = 111

suy ra : a= 3 ( a = 1 , 2 hoặc lớn hơn 3 thì a *ab < 111 hoặc a *ab > 111 )

Thay vào a = 3:

  3* 3b = 111

      3b = 111 : 3 

      3b = 37

suy ra : b = 7

Vậy phép tính đúng là : .............

Ta có a phải bé nhất và a>91

a-5 chia hết 7 nên a+14-5 chia hết cho 7 nên a+9 chia hết cho 7

a-4 chia hết 13 nên a+13-4 chia hết cho 13 nên a+9 chia hết cho 13

(Lưu ý:khi viết ra vở :nên=suy ra(viết dấu);chia cho viết dấu)

Vậy a+9 thuộc BC(13;7)

Vì (13;7)=1

Suy ra BCNN(13;7)=13.7=91

Suy ra a+9 thuộc {0;91;182;273;364;...}

Suy ra a thuộc {82;173;264;355;...}

(Lưu ý :Suy ra viết dấu;thuộc viết dấu)

Để a nhỏ nhất và >9

Thì a=173

Vậy a chia 91 có số dư là 82.

Tasj 3.Complete the second so that it has a similar meaning to the first sentence

1.They last cleaned up the street two weeks ago

->They haven't cleaned up the street for two weeks

2.This is the first time I've painted a mural over graffiti

->I have never painted a mural over graffiti before

3.This apple tree looks healthier than that one

->That apple tree tree doesn't look as healthy as this one

4.My house is as as high as his

->My house is the (đề sai)

Các bạn làm sai hết rồi.

Bạn của hiệp sĩ là kẻ lừa dối và bạn của kẻ lừa dối là hiệp sĩ nên:

=>kẻ lừa dối chỉ có một mình 1hiệp sĩ là bạn và ko phải bạn của những kẻ lừa dối khác.

=>1hiệp sĩ là bạn của tất cả 30-1=29 (kẻ lừa dối khác)

Ta có:

-15 người ngồi ở vị trí lẻ sẽ là 1hiệp sĩ+14 kẻ nói dối vì họ sẽ ngồi xen kẽ với 15 người ngồi ở vị trí chẵn=15 kẻ nói dối và 1hiệp sĩ+14 kẻ nói dối đều nói ''Đúng''.Hiệp sĩ nói ''đúng'' vì bên cạnh anh ta là kẻ nói dối và anh ta chuyên nói thật nên anh ta nói ''đúng''.14 kẻ nói dối ngồi ở vị trí lẻ nói đúng vì họ chuyên nói dối và không thể ngồi với anh hiệp sĩ kia (1,2,3,4,5,6,7,8,... / nếu bạn không hiểu thì đây là cách vắn tắt / 1 không thể ngồi với 3,3 không thể ngồi với 5,.../cứ thế ta sẽ biết được)

-15 người ngồi ở vị trí chẵn sẽ là 13 kẻ nói dối và 2 kẻ nói dối ngồi cùng hiệp sĩ.13 kẻ nói dối ko ngồi với hiệp sĩ sẽ nói ''đúng''vì họ chuyên nói dối.Và 2 kẻ nói dối ngồi cùng hiệp sĩ sẽ nói ''Sai'' vì họ chuyên nói dối và vì họ cũng ngồi với hiệp sĩ.

Vậy sẽ có 13 người nói Đúng ngồi ở vị trí chẵn.

SAI nhớ nói để tớ sửa.

TICK NHÉ BẠN THÂN UZUMAKI NARUTO