Hãy xét xem các khẳng định sau đúng hay sai? Vì sao?

a) ( − 12 ) . ( − 5 ) > ( − 12 ) . 2 ;           b) x 2 2 ≥ 0 ;  

c) − 4 5 .3 < 3. 5 4 ;

d) 13 + ( − 3 ) . 5 > 13 + ( − 5 ) . ( − 3 ) .

Cho đoạn thẳng AB = 42cm và điểm C thuộc đoạn thẳng đó sao cho C A C B = 2 5 .  Tính độ dài các đoạn CA, CB và khoảng cách từ C đến trung điểm O của AB

Cho x O y ^   =   120 ° . Vẽ các tia Oz và Ot nằm trong x O y ^  sao cho Oz vuông góc với Ox và Ot vuông góc với Oy.

a) Tính số đo góc zOt.

b) Gọi Om và On lần lượt là hai tia phân giác của hai góc x O t ^ và y O z ^ . Chứng minh tia O m ⊥ O n .

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 38 to 45.

  “They told me I could never walk again. But when I listened to music, I forgot all about the pain. I found the strength I didn’t know I had.”Ninety-two-year-old Tina Goodman, who regained her ability to walk, thanks to music.

  This is just one of the many stories in Fettaro’s book “The Healing Power of Music” . Fettaro tries to show just how important music is in our lives and how it can help us to be healthy and happy.

  According to Fettaro, music can make sick people again. In fact, his book comes with a CD of recordings, each one specially designed to help with a number of health problems.

  Fettaro, e well-known music therapist, promises that by reading his book, you will be able to develop the healing power of music in your life. He says this will help you fight headaches and back pain, as well as reduce stress, high blood pressure, and many other common illnesses.

  Certainly, I accept that listening to certain types of music can help with particular problems, such as stress. I am also comfortable with Fettaro’s claim that by reading his book, you’ll be able to create a peaceful enviroment to help you relax in your home. I found the relaxation and breathing techniques very useful. Similarly his claim that music help you sleep better seems reasonable. Yet when he goes on to promise his music therapies will help cure depression and even cancer, he begins to sound a little bit unbelievable.

  Nevertheless, for those of you who are interested in the power of music to heal, this is a great book to buy. It’s a thorough introduction to the history and practice of music therapy. Fettaro writes in a simple, easy to understand way and shows clearly how music can affect us positively. His basic message-that music can improve our lives-is well-presented and clear. It may even be true that certain techniques covered here can help some people recover from unpleasant health problems. However, his promises of “amazing results” seem impossible to justify.

What was Tina Goodman’s problem?

A. stress

B. high blood pressur

C. disablement 

D. headaches

Read the passage carefully and choose the correct answer.

 Television first appeared some fifty years ago in the 1950s. Since then, it has been one of the most popular sources of entertainment for both the old and the young. Television offers cartoons for children, world news, music and many other programs. If someone is interested in sports, for example, he can just choose the right sports channel. There he can enjoy a broadcast of an international football match while it is actually happening. Television is also a very useful way for companies to advertise their products. It is not too hard for us to see why there is a TV set in almost every home today. And, engineers are developing interactive TV which allows communication between viewers and producers.

 Sports channel is for people who are ______in sports.

A. interested 

B. passion 

C. love 

D. tired

Dạ đài là từ gì?

A. Chỉ nơi mà Kiều sẽ đến chung sống với Mã Giám Sinh.

B. Chỉ một địa danh mang tính ước lệ.

C. Chỉ cõi chết lạnh lẽo.

D. Chỉ nơi thờ phụng của một dòng tộc.

Choose the letter A, B, C or D to complete the sentences

- Lisa: “Have you been able to reach Peter?” - Gina: “____________.”

A. That’s no approval

B. Yes, I’ve known him for years

C. No, the line is busy

D. It’s much too high