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thukhoayds
2 năm trước
Một chiếc vòng bằng hợp kim vàng và bạc, khi cân trong không khí có trọng lượng P0= 3N. Khi cân trong nước, vòng có trọng lượng P = 2,74N. Hãy xác định khối lượng phần vàng và khối lượng phần bạc trong chiếc vòng nếu xem rằng thể tích V của vòng đúng bằng tổng thể tích ban đầu V1 của vàng và thể tích ban đầu V2 của bạc. Khối lượng riêng của vàng là 19300kg/m3 , của bạc 10500kg/m3
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VII. Read the text and questions below. Choose the correct letter A,B,C or D. Craigie Aitchison The painter Craigie Ai tchitson was born in Scotland. He came to London intending to study law, but went to art school instead. There he found the traditional drawing classes difficult, but still kepton painting. In his late twenties, he was given money by the Italian government to study art, and became interested in early Italian artists, which shows in some of his work. He loved the greens and browns of the Italian fields and the clear light there, and wanted to put this light into his paintings. This led him to paint colors thinly one on top of another from light to dark, but he insists he’s never sure what the results will be. He says, “It’s a secret – because I don’t know myself. I don’t start by painting yellow, knowing I’m going to put anything on top.” Like most talented people, Atchison makes it sound easy. “Anyone can do the colors – you can buy them. I simply notice what you put the colors next to.” Unlike some artists, he never does drawings before he starts a painting, as he feels that if he did,he might get bored and not do the paintings afterwards. Instead, Aitchison changes his paintings many times before they are finished. This explains why his favorite models are people who don’t ask to see their pictures while he’s painting them. “If I feel they’re worried and want to look at the painting , I can’t do it.” Since moving to London years ago, he has not felt part of the Scottish painting scene. He says he is not interested in following any tradition, but just paints the way he can. However, his work still influences young British painters. 1. What is the writer trying to do in the text? A. describe popular works by Craigie Aitchison B. teach readers how to paint like Craigie Aitchison C. introduce readers to the artist Craigie Aitchison D. explain how Craigie Aitchison has made money from painting 2. What can the reader learn about Aitchison from the text? A. He works in a different way from other artists. B. He often gets bored with his paintings. C. He improved his drawing by going to art school. D. He did some paintings for the Italian government. 3. What does Aitchison say about his use of color? A. He likes starting with the darkest colors first.B. He knows the colors he’s aiming for when he begins. C. He prefers to paint with yellows, greens, and browns. D. He understands how different colors work together. 4. Aitchison prefers models who don’t A. keep talking to him while he’s working. B. ask him about his strange method of working. C. worry about how long the work will take.D. feel anxious to see the work as it’s developing. 5. What might a visitor at an exhibition say about Aitchison’s work? A. I love his recent paintings of Scotland, which are very similar to a number of other Scottish painters. B. You can still see the influence of his trip to Italy in some of these pictures. C. You can tell he spent a lot of time drawing the picture before he started painting. D. I wonder if his law training helps him at all, especially in selling his work .

VI.Choose the most suitable sentence from the list A-H for each part of the article. There is one extra sentence which you do not need to use. Career success in the arts John Prince, famous dancer and choreographer, gives advice on how to succeed in a career in the arts. I asked John how he got started and what requirements there are. "Well, to be a professional dancer it's useful to have had acting lessons or some background in drama. If you want to succeed in musical theatre you have to have a good singing voice as well. When you approach an agent you should take a portfolio with your CV, your statistics sheet and some good photos and reviews of past performances. You'll need dance clothes, ballet shoes, tap shoes, and even roller skates depending on what kind of show you are going to go for." 1. ____ "Of course, you need to be extremely fit if you want to be a professional dancer. I dance or move about for about six hours a day. There are great health benefits to being a dancer. I can eat a lot of pasta without gaining weight because dancing increases your metabolism so much." 2. ____ John has a very busy schedule in the next few months. He took time out to speak to me today from the making of a pop video to promote N-ergy's latest record. "I choreographed the dance routine for the boys and they only had 2 days in which to learn it! I am going to be working on a video for another well known band - but that's top secret. Next month I'll be touring Spain in a production of a musical that was written by a friend of mine, Michaela Evans. 3. ____As for the future, I've come to realise that I would never be content to be just a chorus dancer - I'm too much of an individual for that. Like all artists I'd love to become a household name by writing and choreographing my own musicals." John was born in Jamaica to a Jamaican father and a Scottish mother but the family emigrated to England 20 years ago. "I have a little sister I adore, who is also traini ng to be a dancer." How does it feel to have someone else following in your footsteps? 4. ____ Has he much more to learn, I wondered. "I've spent an incredible amount of my life training to get where I am. Iwent to college for two years in England, I trained for six months in Paris and about eight months in America. But you never really stop training or learning your art." 5. ____ So, would you say it's been plain sailing? "I feel I've been lucky to a degree; many people hit problems breaking into the arts. It can be a vicious circle really. You can't become a member of Equity, which is the actors' and dancers' union, without good contracts and you can't get good contracts without being a member of Equity. My advice to people who want to get into the arts would be to go out into the world, and try everything else first. 6 ____ What has a dance career done for you as a person? "Thanks to dancing, I've visited and performed in 23 countries so far. This has opened my eyes to the world, and I've been able to understand issues like racism and inequality from a wider perspective. 7. ____ "So all in all I'm really happy to be a dancer!" A It's fine, but I try not to give out too much advice as it gets irritating! B And if nothing you like comes out of it, then come back and be an actor or dancer. C Without a strict daily timetable like this you find yourself wasting too much time. D After that it's back to England to start a new term of dance classes. E Hopefully this has enabled me to become a better and more tolerant person as a result. F When it comes to coping with stress, I find that exercise helps me to cope with my problems, so I stay in good shape mentally as well. G Like any profession where you're always travelling, you tend to acquire something new almost every day. H Being fully equipped with all this stuff beforehand makes it easier when you go for auditions.

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