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số vô tỉ: incommensurable number
số hữu tỉ: rational number
số hữu hạn: finite number
số vô hạn tuần hoàn: infinite number of circulating.
số nguyên : interger
số tự nhiên: natural number
số thực: real number
you're a life saver!Don't try Google translate...because it don't true!
Nội quy chuyên mục giúp tôi giải toán
1.Không đăng câu hỏi linh tinh lên diễn đàn,chỉ đưa ra các bài mà mình không biết hoặc những câu hỏi hay lên diễn đàn.
2.Không trả lời linh tinh,không phù hợp với nội dung câu hỏi trên diễn đàn.
3.Không k đúng vào các câu trả lời linh tinh nhằm gian lận điểm hỏi đáp
Các bạn vi phạm 3 điều trên sẽ bị giáo viên Online Math trừ hết điểm hỏi đáp, có thể bị khóa tài khoản hoặc bị cấm vĩnh viễn đăng nhập vào trang web
MATH: Among many subjects student learns in school, I math the most. This is one of the compulsory subjects from primary to high school and even university. Math teaches students about numbers and operation. Being good at math brings us several advantages. Doing math exercise improves one’s brain and its brainstorm. Moreover, people learning math can think more logically and make up one mind. There are many subjects we can apply mathemas to solve the problem: economics, engineering and even business. Math is said to originate from ancient Greece and develop completely as today. In VN it’s an increasing number of mathemaal genius such as Ngo Bao Chau. Therefore, Vietnamese are very proud of it. In my opinion, every student should be good at math or at least learn it. Since human gain lots of achievement related to math, specifically in modern society.
LITERATURE: When going to school, there are many subjects; however I still literature the most. First, literature plays an important role in both education and daily life. Literature is not limit to a subject to be learnt at school. Furthermore, this subject teaches human about several aspects of life. From the very first step, student learns to write, read as well as describe things and people. Moreover, literature teaches one to be a responsible citizen and able personality. Literature is more than a subject, it’s an art and it can be applied directly into life such as: journalism, writing skill. People are not born to learn this unique subject, it needs long time to exercise to master. Besides, when learning literature people not only know more works of art but also understand culture, tradition of each country. Literature is the mirror reflecting human and their lifestyle. Studying literature means learning the way to love and live a true life. All in all, with great benefits of literature, it is necessary for each society especially developing countries.
When going to school, there are many subjects; however I still literature the most. First, literature plays an important role in both education and daily life. Literature is not limit to a subject to be learnt at school. Furthermore, this subject teaches human about several aspects of life. From the very first step, student learns to write, read as well as describe things and people. Moreover, literature teaches one to be a responsible citizen and able personality. Literature is more than a subject, it’s an art and it can be applied directly into life such as: journalism, writing skill. People are not born to learn this unique subject, it needs long time to exercise to master. Besides, when learning literature people not only know more works of art but also understand culture, tradition of each country. Literature is the mirror reflecting human and their lifestyle. Studying literature means learning the way to love and live a true life. All in all, with great benefits of literature, it is necessary for each society especially developing countries.
TBM CN môn này em được 8,1. Nếu các môn khác không khống chế thì em được danh hiệu HSG nha!
rồi. Nhưng mình học Tiếng anh đề án, đề khác lớp thường , được không?
mình ko ở Quận trong hà nội mà mình đang ở bình dương bạn ạ
I. Nội qui tham gia "Giúp tôi giải toán"
1. Không đưa câu hỏi linh tinh lên diễn đàn, chỉ đưa các bài mà mình không giải được hoặc các câu hỏi hay lên diễn đàn;
2. Không trả lời linh tinh, không phù hợp với nội dung câu hỏi trên diễn đàn.
3. Không "Đúng" vào các câu trả lời linh tinh nhằm gian lận điểm hỏi đáp.
Các bạn vi phạm 3 điều trên sẽ bị giáo viên của Online Math trừ hết điểm hỏi đáp, có thể bị khóa tài khoản hoặc bị cấm vĩnh viễn không đăng nhập vào trang web.
PART A: PHONES (2pts)
Section I: Choose the word which has the underlined part pronounced differently from the others.(1pt)
1. A. school B. chair C. chemistry D. character
2. A. serious B. symptom C. sugar D. sauce
3. A. order B. novel C. portable D. score
4. A. coop B. cartoon C. stool D. indoors
Section II. Choose the word that has different stress from others.(1pt)
1. A. complete B. detective C. gather D. event
2. A. mixture B. allow C. affect D. disease
3. A. exit B. cushion C. turtle D. improve
4. A. museum B. useful C. cavity D. wedding
PART B: VOCABULARY AND GRAMMAR.(10pts)
Section I: Choose the best answer from A,B,C or D to fill in the gaps.(2pts)
1. She is staying................................her uncle and aunt's house.
A. at B. in C. with D. on
2. Their trip to Da Lat ....................wonderful.
A. was B. were C. are D. is
3. There is............................meat in the box.
A. any B. a few C. a little D. many
4. Don't forget .....................your teeth before going to bed.
A. brush B. to brush C. brushing D. not to brush
5 You ............................stay at home when you are sick.
A. had better B. should C. mustn't D. A and B
6. He doesn't candy. I.................
A. don't too B. don't, either C. don't neither D. do so
7. I divided the sweets.....................several boys.
A. during B. between C. into D. among
8. He was only ten, but he ate........................his father did.
A. as much as B. more that C. much than D. as much than
Section II: Supply the correct tense for the verbs in brackets.(2pts)
1. My mother often (go)..............to the market every morning but she ( not go)....................there this morning.
=> .........................................................................................................
2. When (you/ have).........................the last medical check-up?
=> .........................................................................................................
3. Why ( you/ not take) ..................part in the picnic last Sunday?
=> .........................................................................................................
4. Where ( your teacher/ be)....................?
- He (explain)......................a new lesson in that class.
=> .........................................................................................................
=> .........................................................................................................
5. I (pick)...............you up at your hotel in half an hour.
=> .........................................................................................................
6. We can't go out now because it (rain) .
=> ................................................................................................
Section III: Give the correct form of the words in brackets.(2pts)
1. The noise in the city kept Hoa...................at night. (Wake)
2. In................to that, my bike tires was flat. (Add)
3. Mr. Tan has a very...............................tooth. (Pain)
4. Then, Thanh.................a pan and stir-fried the beef. (Hot)
5. Sugar is not an......................food because we need it to live. (Health)
6. Catching the common cold is..................for every body. (Please)
7. Don't worry! Your cold will last for a few days and then................ (Appear)
8. I have.................time to play than my friend. (Little)
Section IV: Finish each of the following sentences in such a way that it is as similar as possible in meaning to the sentence printed before it.(2pts)
1 Listening to music is more interesting than watching TV.
=> I prefer........................................................................................................
2. It isn't important for you to finish the work today.
=> You don't......................................................................................................
3. How much is this dictionary?
=> What ........................................................................................................?
4. How heavy is the chicken?
=> What...........................................................................................................?
5. Mr. Trung and Mrs. Trung type quickly .
=> Mr. Trung and Mrs. Trung..................................................................................
6. I got to work in half an hour yesterday.
=> It took ..........................................................................................................
7. My mother doesn't coffee and tea.
=> My mother s neither....................................................................................
8. You shouldn't eat too much candy.
=> You'd...........................................................................................................
Section V: There is a mistake in each of these sentences. Underline the mistake and then correct it. (2pts)
1. The dirt on vegetables can cause you sick .
=> ..................................................................................................................
2. Scientists say that the life started in the ocean .
=> .................................................................................................................
3. He gave up to smoke 2 years ago.
=> ...................................................................................................................
4. He is a fast runner. He runs fastly.
=> ...................................................................................................................
5. Can I lend your pencil? I'm sorry. I'm using it.
=> ...................................................................................................................
6. You should keep silently when they are working.
=> ..................................................................................................................
7. How many times in a day do you brush your teeth ?
=> ...................................................................................................................
8. Long is worried because he has see the dentist.
=> ...................................................................................................................
PART C: READING.( 4pts)
Section I: Read the following story and write true (T) or false (F). (1.5pts)
When Dave was young, he played a lot of games, and he was thin and strong, but when he was forty-five, he began to get fat and slow. He was not able to breathe as well as before, and when he walked rather fast, his heart beat painfully.
He did not do anything about this for a long time, but finally he became anxious and went to see a doctor, and the doctor sent him to a hospital. Another young doctor examined him there and said, " I don't want to mislead you, Mr. Dave. You are very ill, and I believe that you are unly to live much longer. Would you me to arrange for anybody to come and see you before you die?
Dave thought for a few seconds and then he answered, "I'd another doctor to come and see me".
Your answers:
1. Dave was fat and slow until he was forty five.
2. As soon as Dave had trouble in breathing and walking, he went to see a doctor.
3. Dave was afraid he was ill.
4. The young doctor thought Dave was going to die soon.
5. He wanted to see another doctor, first.
6. Dave did not trust the young doctor.
Section II: Read the passage and write ONE suitable word for each space. (2.5pts)
Many people nowadays have to wear false teeth when they was middle-aged.
Since the beginning of this century,(1)..................decay has greatly increased. The amount(2) ..................sugar in our food has also increased Doctors and dentists now know that(3)..........................is the chief cause of tooth(4) ................ Eskimos' teeth, for example, started to(5)..........when they began to eat sweet(6)..................
Long ago doctors did not (7).........treat people's teeth. Barbers and blacksmiths(8)................after people's teeth and pulled them(9)............ when they decayed. Some people thought(10)..................................was a punishment from the gods.
PART D: READING.( 4pts)
Section I: Using the givens words to write a passage. (2pts)
Dung/ go/ Nha Trang/ family/ vacation/ last month//. She/ stay/ hotel/ side/ beach//. In the early morning/ she/ go/ sea/ swim/an hour//. Then/ she/ breakfast/ food stall/ beach/ enjoy/ fresh a...
yes, because music and art help me relax after school, it is very interesting, too. the students will love it and they also need a talent to have a job easily.
I think the teachers should continue teaching Arts and Music because. The first, these subjects can help us relax after learning too much lessons such as: Maths, Physics,.... Secondly, we are kids now who are very naughty and creative so we should learn Music and Arts to let the creative power better. And the last important reason is that imagine if everybody doesn't know anything about Arts and Music, is it bad? Yes, it is. I think nobody will smile if music and art disappear in this world.
nếu có chỗ nào sai xin bạn nhiệt tình sửa giúp mk 
cs hả bn
Bôi bút xóa lên nhé bạn:)
xóa đc à bn
có đấy
- Sử dụng phần mềm chỉnh sửa PDF: Bạn có thể sử dụng các công cụ như Adobe Acrobat Pro hoặc các trang web chỉnh sửa PDF trực tuyến để che hoặc xóa các văn bản, hình ảnh có sẵn.
- Chụp ảnh và chỉnh sửa: Chụp ảnh tài liệu, sau đó sử dụng ứng dụng chỉnh sửa ảnh trên điện thoại hoặc máy tính để dùng tính năng "cọ xóa" (brush) hoặc "dán đè" màu trắng lên các nội dung cần ẩn.
- In và sử dụng bút xóa: Phương pháp truyền thống nhất là in tài liệu ra, dùng bút xóa (bút xóa nước hoặc băng xóa) để xóa trực tiếp trên giấy, sau đó có thể photo lại nếu cần bản sạch.
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