Контрольная работа по Английскому языку на тему: "SYNTHESIS REACTION"

Вариант 4

1. Прочитайте и устно переведите весь текст, а абзацы 1, 2, 3, 7 и 8 перепишите и переведите письменно: SYNTHESIS REACTION 1. A synthesis reaction or direct combination reaction is one of the most common types of chemical reactions. In a synthesis reaction two or more chemical species combine to form a more complex product. A + B → AB 2. In this form, a synthesis reaction is easy to recognize because you have more reactants than products. Two or more reactants combine to make one larger compound. 3. One way to think of synthesis reactions is that they are the reverse of a decomposition reaction. Synthesis Reaction Examples 4. In the simplest synthesis reactions, two elements combine to form a binary compound (a compound made of two elements). The combination of iron and sulfur to form iron (II) sulfide is an example of a synthesis reaction: 8 Fe + S8 → 8 FeS 5. Another example of a synthesis reaction is the formation of potassium chloride from potassium and chlorine gas: 2K(s) + Cl2(g) → 2KCl(s) 6. As in these reactions, it's common for a metal to react with a nonmetal. One typical nonmetal is oxygen, as in the everyday synthesis reaction of rust formation: 3 Fe (s) + O2 (g) → Fe2O3 (s) 7. Direct combination reactions aren't always just simple elements reacting to form compounds. Another everyday example of a synthesis reaction is the reaction that forms hydrogen sulfate, a component of acid rain. Here, the sulfur oxide compound reacts with water to form a single product: SO3 (g) + H2O (l) → H2SO4 (aq) 8. So far, the reactions you have seen have only one product molecule on the right-hand side of the chemical equation. Be on the lookout for synthesis reactions with multiple products. A familiar example of a more complex synthesis reaction is the overall equation for photosynthesis: CO2 + H2O → C6H12O6 + O2 The glucose molecule is more complex than either carbon dioxide or water. 9. Remember, the key to identifying a synthesis or direct combination reaction is to recognize two or more reactants form a more complex product molecule! 

2. Прочитайте весь текст. Являются ли предложения ниже правильными (True) или неправильными (False) или искомой информации нет в тексте (Not Stated): 1. A synthesis reaction is the reverse of a direct combination reaction. 2. Synthesis reactions are the same as decomposition reactions. 3. In a synthesis reaction you have more reactants than products. 4. Direct combination reactions aren't always just simple elements reacting to form compounds. 5. A binary compound is a compound made of two elements.

3. Составьте вопросы к тексту из слов, расположенных не по порядку: 1. a larger compound/How/be/can/made? 2. How/we/synthesis/identify/can/a/or/direct combination reaction? 3. the glucose molecule/Is/complex/than/more/the water one? 4. combination reactions/Do/just simple elements/direct/to form/react/compounds? 5. How/made/a/of/called/two/elements/is/compound?

4. Ниже даны слова и словосочетания на русском языке, найдите в тексте их эквиваленты на английском: Реакция синтеза Образование ржавчины Бинарные соединения Сульфат водорода Химическое уравнение

5. Перепишите письмо, заполняя пробелы, подходящими по смыслу словами из рамки. Выделите вставленные слова жирным шрифтом: rely on / advertisement / present employer / my CV / thank you for / independently Deborah Clark 11 Leap Lane London B18 6NF 10th April 2017 Chloe Grayn Hiring Manager Dayjob Ltd 120 Vyse Street Birmingham B18 6NF Dear Ms Grayn, I am responding to your ………… yesterday on the www.dayjob.com website for a Furniture Designer position. It is with great anticipation that I present ……….. to you as I firmly believe that I am perfectly qualified for the role. 74 I come to you as an experienced, hard-working and motivated individual with a high level of integrity who can design top quality furniture to the highest standards. With my………. ………., I work as part of a furniture manufacturing team designing, machining and building furniture solutions for both new and existing clients. I am involved in researching and identifying furniture trends from furniture fairs, shops, vintage shows, exhibitions and blogs. You can ………. ……. me to meet any brand style, price and quality criteria needed to delight your customers. I possess a thorough work ethics, and can be a team player while also being able to work …………. . Furthermore, I have no trouble working to tight time frames with accuracy and minimal supervision. Right now, I would like to work for a company like yours where every idea is given the opportunity to rise to the top. In closing I would like to ……….. ……… for your consideration, and I look forward to discussing the possibilities with you in greater details in the near future. Yours sincerely, Deborah Clark Tel: 0044 121 638 0026 Email: DebbyC@.com

6. Перепишите предложения и вставьте правильный ответ, выделив его жирным шрифтом: 1. Before you begin writing your job application letter, consider what …………… you want to include. a. address b. job c. information 2. To include the most convincing, relevant details in your letter, you'll need to know what the …………… wants. a. employee b. employer c. worker 3. Make a connection between your skills and the employer's …………… to create a list of the preferred qualifications for the ideal candidate for your target job. a. requirements b. review c. responsibilities 4. Write about as many of the ……………… as possible detailing how you used that skill or exhibited that quality in a work, volunteer, academic or co-curricular role. a. details b. skills c. qualifications

7. Составьте словосочетания: communication candidate employer's advice ideal requirements job skills ask for duties 

8. Перепишите текст, образуя правильную часть речи от слов, предложенных в скобках, чтобы предложения имели смысл: ……………… 1 (communicate) is the lifeblood of …………… 2 (busy). For people to get along, work in unison and establish ……………. 3 (profession) relationships with one another, they must communicate with the appropriate etiquette. …………….. 4 (listen) skills are a main part of communication etiquette. When others are speaking, do not interrupt them. Employ active listening techniques, such as making good eye contact and showing the ………… 5 (speak) that you are paying …………. 6 (attentive) to them.

9. Перепишите предложения, вставив правильный ответ из трех предложенных вариантов и выделив его жирным шрифтом: 1. If I were a rich man, I …………….. a very large boat. a. will buy b. would buy c. had bought 2. If Max …………… more time working and less time playing, his boss wouldn't have fired him. a. spend b. spent c. had spent 3. We ……………. John if we had known about his problems. a. would help b. will help c. would have helped 4. I would run away screaming if I …………… an alien. a. see b. saw c. had seen 5. If my brother …………. me next year, I'll take him to Oktoberfest. a. visits b. will visit c. visited

10. Перепишите и переведите предложения, содержащие инфинитив. Выпишите инфинитивы и определите их функцию в предложениях: 1. He advised us to look through the article. 2. We have no intention to order these fabrics. 3. The function of this device was to compute all these quantities. 4. To smoke is harmful. 5. They gave the programmers 48 hours to re-write a message on the website.

11. Перепишите и переведите предложения, содержащие инфинитивы и инфинитивные обороты. Выпишите из предложений фразы, образующие эти обороты и дайте им определение: 1. The mistake was too obvious for everybody to notice it. 2. I know him to be a very good student. 3. The rules of the presentation are known to be followed (by everyone). 4. I happened to meet him at scientific conferences. 5. All my groupmates are likely to pass the exams.