Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction.

After George had returned to his house, he was reading a book.

A. had returned 

B. his house 

C. he 

D. was reading

I've just been offered a new job! Things are ______. 

A. clearing up 

B. making up 

C. looking up 

D. turning up 

Read the following passage and mark the letter A, B, C or D to indicate the correct answer.

The medieval artists didn’t know about perspective; they didn’t want to make their people look like real, individual people in a real, individual scene. They wanted to show the truth, the eternal quality of their religious stories. So these artists didn’t need to know about perspective.

In the European Renaissance period, artists wanted to show the importance of the individual person and his or her possessions and surroundings. A flat medieval style couldn’t show this level of reality and the artists needed a new technique. It was the Italian artist Brunelleschi who discovered the technique of perspective drawing. At first the artists of the Renaissance only had single-point perspective. Later they realized that they could have two-pointed perspective and still later multi-point perspective.

With two-point perspective they could turn an object (like a building) at an angle to the picture and draw two sides of it. The technique of perspective which seems so natural to us now is an invented technique, a part of the “grammar of painting”. Like all bits of grammar there are exceptions about perspective. For example, only vertical and horizontal surfaces seem to meet on eye level. Sloping roof tops don’t meet on eye level.

For 500 years, artists in Europe made use of perspective drawing in their pictures. Nevertheless, there are a range of priorities that artists give in displaying individual styles. Crivelli wanted to show depth in his picture and he used a simple single-point perspective. Cezanne always talked about space and volume. Van Gogh, like some of the other painters of the Impressionist period, was interested in Japanese prints. And Japanese artists until this century were always very strong designers of “flat” pictures. Picasso certainly made pictures which have volume and depth. However, he wanted to keep our eyes on the surface and to remind us that his paintings are paintings and not illusions.

It is technically easy to give an illusion of depth. However, a strong two dimensional design is just as important as a feeling of depth, and perhaps more important.

The author’s purpose to give the example in line15-17 is to

A. explain how perspective work in painting

B. support two-pointed perspective

C.  illustrate that there are exceptions about perspective

D. point out that the technique of perspective though seems so natural is an invented technique

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 36 to 42.

        Although speech is the most advanced form of communication, there are many ways of communicating without using speech. Signals, signs, symbols and gestures may be found in every known culture. The basic function of a signal is to impinge upon the environment in such a way that it attracts attention, as, for example, the dots and dashes of telegraph circuit. Coded to refer to speech, the potential for communication is very great. Less adaptable to the codification of words, signs also contain meaning in and of themselves. A stop sign or a barber pole conveys meaning quickly and conveniently.

        Symbols are more difficult to describe than either signals or signs because of their intricate relationship with the receiver's cultural perceptions. In some cultures, applauding in a theater provides performers with an auditory symbol of approval. Gestures such as waving and handshaking also communicate certain cultural messages.

        Although signals, signs, symbols and gestures are very useful, they do have a major disadvantage. They usually do not allow ideas to be shared without the sender being directly adjacent to the receiver. Without an exchange of ideas, interaction come to a halt. As a result, means of communication intended to be used for long distances and extended periods must be based upon speech. To radio, television and the telephone, one must add fax, paging systems, electronic mail, and the Internet, and no doubts but that there are more means of communication on the horizon.

It may be concluded from this passage that _______.

A. symbols are very easy to define and interrupt 

B. only some cultures have signs, signals, and symbols 

C. waving and handshaking are not related to culture 

D. signs, signals, symbols, and gestures are forms of communication.

Sắp xếp các chất sau theo trật tự giảm dần nhiệt độ sôi: CH 3 COOH , HCOOCH 3 , CH 3 COOCH 3 , C 3 H 7 OH .

A. CH 3 COOH ,  HCOOCH 3 ,  CH 3 COOCH 3 ,  C 3 H 7 OH .

B.  CH 3 COOCH 3 ,  HCOOCH 3 ,  C 3 H 7 OH ,  CH 3 COOH .

C.  HCOOCH 3 ,  C 3 H 7 OH ,  CH 3 COOH ,  CH 3 COOCH 3 .

D.  CH 3 COOH , C 3 H 7 OH ,  CH 3 COOCH 3 ,  HCOOCH 3 .

Hãy chứng minh hệ quả 3.

Gọi vận tốc xe đạp khi đi từ A đến B là x ( km/h ; x > 2 )

Vận tốc xe đạp khi đi từ B về A là x-2 (km/h)

Thời gian đi từ A đến B là \(\dfrac{30}{x}\)(giờ)

Thời gian đi từ B về A là \(\dfrac{30}{x-2}\)(giờ)

Vì thời gian về nhiều hơn thời gian đi 45 phút nên ta có phương trình :

\(\dfrac{30}{x-2}-\dfrac{30}{x}=\dfrac{3}{4}\)

\(\Leftrightarrow\dfrac{30x-30x+60}{x^2-2x}=\dfrac{3}{4}\)

\(\Rightarrow240=3x^{^2}-6x\)

\(\Leftrightarrow\left[{}\begin{matrix}x=10\left(TM\right)\\x=-8\left(lo\text{ại}\right)\end{matrix}\right.\)

Vậy vận tốc xe đạp khi đi từ A đến B là 10 km/h

I arrived in Wolverhampton lately this evening, as I'm doing a small part in a short film here tomorrow.

A. arrived in

B. lately

C. as

D. in a short film