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thieuvan29
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Ai giải giúp mình * Chứng minh đường thẳng vuông góc mp Ta có nên đt d (α) *Tính góc giữa đt và mp ĐƯỜNG THẲNG VUÔNG GÓC MẶT PHẲNG Bài 1. Cho hình chóp S. ABC đáy là ABC vuông cân tại B, SA vuông góc với (ABC) a. Chứng minh rằng: các mặt bên của hình chóp là các tam giác vuông b. Kẻ đường cao AD của DSAB và đường cao AE của DSAC. Chứng minh rằng: SC
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1 / 2 Exercise 1. Rewrite the following sentences in reported speech with infinitives. 9. “Why doesn’t she talk to me any more?” I thought to myself. ………………………………………………………………………………… 10. “What are you going to do with your scholarship?” Hang asked Huong. ……………………………………………………………………………… 11. “Where do you live?” she said to him …..……………………………………………………………………………… 12. “Why do you want the job?” she said to him …..…………………………………………………………………………… 13. “How did you hear about it?” she said to him …..………………………………………………………………………… 14. “How much do you expect to earn?” she said to him …..……………………………………………………………………………………… 15. “When can you start?” she said to him …..…………………………………………………………………………… 16. “What time is it, Ha?” she asked …..……………………………………………………………………………… 17. “How long have you worked for this company?” she asked …..………………………………………………………………………… 18. “Why has he been working so hard?” she asked …..……………………………………………………………………………………… 19. “Why did you do it when I told you not to?” she said to me …..……………………………………………………………………………… 2 / 2 20. “Why didn’t you come at ten o’clock?” she said …..…………………………………………………………………………………… REPORTED SPEECH II. Change the following sentences into indirect sentences: 1. “I’m tired,” Trevor said. …………………………………………………………………………………………… 2. “Sorry. I wasn’t listening,” Hang said. …………………………………………………………………………………………… 3. “Is this your pencil?” he asked his pupil. ……………………………………………………………………………… 4. “I’m going to Paris soon,” she said. ……………………………………………………………………………………… 5. “It’s time to start revising (ôn lại) for the exam,” the teacher said. ………………………………………………………………………… 6. “The film will be interesting,” I thought. …………………………………………………………………………………… 7. “I can’t help you because I have too much to do,” she said. ……………………………………………………………………………………… 8. “Anne has bought the tickets.” She said to me. …………………………………………………………………………………… 9. “It took me three hours to get here because the roads are flooded” he told me. ……………………………………………………………………………… 10. “I think it’s a crazy (điên dại/ ngu xuẩn) idea. It’s won’t work” she said. ………………………………………………………………………………………… 11. The receptionist says “Breakfast is served between 7.00 and 9.00”

Giúp mình gấp với.chỉ cần đáp án k cần giải thíchTT When I finished school in Germany last year, I did not know what to do next. I wanted to travel, but for that you need money. That means having a job, and without having a university degree, it is difficult to get a good one. My parents agreed I could put off (23)……………a decision about a university course for a year. Then a family in London invited me to live with them, help look (24)…………… the children and do a little housework in return for some pocket money. I (25)……..….. with this family for five months now. My main job is to meet the three children from school, give them their supper and help them with their homework (26)………… their parents come home at about six. Sometimes I must stay in with the children in the evening. I go to English classes three times a week, and at weekends I visit different parts of Britain. Although my parents are happy that I am studying a foreign language while I enjoy this chance to see more of the world, they keep (27)………… me what I want to study at university. I still cannot make up my mind! 23. A:doing B:making C:creating D: getting 24: A:afte B:of C:for D: at 25: A:was living B:had livedC: lived D: have been living 26: A:until B:whenever C: when D:to when 27 27:A to ask B:to askingC: ask D:asking ----------------------------------------------------------------------------------------------------------------------------------------------------- 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. There are as many kinds of careers as there are people. They vary greatly in the type of work involved and in the ways they influence a person’s life. The kind of career you have can affect your life in many ways. For example, it can determine where you live and the friends you make. It can reflect how much education you have and can determine the amount of money you earn. Your career can also affect the way you feel about yourself and the way other people act toward you. By making wise decisions concerning your career, you can help yourself build the life you want. To make wise career decisions and plans, you need as much information as possible. The more you know about yourself and career opportunities, the better you will be able to choose a satisfying career. People differ in what they want from a career. Many people desire a high income. Some hope for fame. Others want adventure. Still others want to serve people and make the world a better place. Before you begin to explore career fields, you should determine your values; your interests; and your aptitudes (abilities). Most people are happy in jobs that fit their values, interests, and aptitudes. Each person has many values, which vary in strength. For example, money is the strongest value for some people – that is, wealth is more important to them than anything else. As a result, they focus their thoughts, behaviours, and emotions on the goal of earning a high income. Other values include devotion to religion, taking risks, spending time with family, and helping others. People should understand their values prior to making a career decision. You can develop an understanding of your values by asking yourself what is the most important to you and by examining your beliefs. For example, is it important for you to work as a member of a team? Or would you rather be in charge or work alone? If working alone or being in charge is important to you, independence is probably one of your primary values. What is this passage mainly about? A: How to change a job. B: Some ways to get a high income. C: Understanding your values. D: Some advice on choosing a career. What do you need to make wise career decisions and plans? A: A lot of friends B: As much information as possible C: Some wise advice from others D: A lot of money Which jobs will make most people happy? A: The jobs that fit their goal of earning a high income B: The jobs that fit their values, interests and aptitudes C: The jobs that fit their devotion to religion D: The jobs that fit their financial well-being What will happen if you know more about yourself and career opportunities? A: You will make a better choice. B: You will get better education. C: You will be able to choose a satisfactory career better. D: You will have better friends. How does the kind of career that you choose affect you? A: It changes your life completely B: It influences your interests C: It affects your life in many ways D: It influences your aptitudes

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