Методическая разработка по английскому языку для студентов факультета химии и химической технологии " Simple Chemistry" Алматы 2017
Ex. 1 Read the following chemical equations
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мет. разработка по химии
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- Ex. 2 Read the following SI unites and chemical formulas
- Ex. 3 Read the following mathematical symbols
- Ex 4. Correct the mistakes
- Ex. 5 Match the first column with the second one
- Ex. 6 Write the following formulas and equations in words
- Ex. 7 Write the following expressions in formulas
- Additional Grammar Grammar: So, such, too, enough Too Use: Too
- You walk too fast. James speaks too quietly. Before a noun, use too much
- So, Such
- Unit 4 Future Simple
- The short form of Future Simple is the following: I, you, they, we, he, she, it’ll. For example: I’ll meet her tomorrow.
| Ex. 1 Read the following chemical equations
Cu + 2H2SO4 = CuSO4 + SO2 + 2H2O H2O + SO3 = H2SO4 Be2 C + 4H2O = 2 Be (OH)2 + CH4 CaO + H2O = Ca (OH)2 Ca3N2 + 6H2O = 3 Ca (OH)2 + 2NH3 2NO + O2 = 2 NO2 2SO2 + O2 2SO3 2KHSO4 = H2O + K2S2O7 (NH4)2S2O8 + 2Ag = Ag2SO4 + (NH4)2SO4 Na2S2O3 + 4Cl2+5H2O = 2H2SO4 + 2NaCl + 6HCl SO2 + Cl2 = SO2Cl2 SO2Cl2 + 2H2O = 2H2SO4 + 2 HCl SO2+ KMn + KOH K2SO4 + MnO2 S + KMnO4 + KOH K2SO4 + MnO2 H2S + KMnO4 + KOH K2SO4 + MnO2 3SO2 + 2 KMnO4 + KOH 2 KSO4 + 2 MnO2 Ex. 2 Read the following SI unites and chemical formulas kg/m3, kg/m2, 10-5, cm3, m /s2, l/s2, mm3, l2, mm/g, g3, H2O, S(II), Cu (III), KSO2, HCl, H2S, CaO, SiO, 2H2S, MnSO3, MgO, Cr (OH)2, Cr (OH)6, Ca(HCO)2, MgCO3, C6H6, C2H2OH, ZnCl, FeO, Li2O2, H+, Ca-, Cl+++. Ex. 3 Read the following mathematical symbols a-5, x3, y2, ( ), { }, [ ], 12o C, 13oF, 14 K, - 13oC, +13oC, , b c, d m, c d, c ≈ v, m + d = s, d – k = f, , , , 65, 7-3, 197, Ex 4. Correct the mistakes g3 – gram cube mm/g – millimeter with gram 2Zn + C CO + Zn – zinc 2 plus carbon and takes carbon oxide and zinc – the root five of five 11o C – eleven degree 11o F – eleven zero f+ g = t – f and g gives t 14-10 – fourteen to the minus ten degree Cu + O CuO – copper and oxygen give copper oxygen Ca (III) – calcium three 4 > 3 – four bigger than three 2 < 5 – two smaller than five x2 – x two 5 + 4 = 9 – five plus four loses nine TiO2 – ti: ai sekqnd ou Mn2O7 – em en sekqnd ou sevn Cl- – chlorine minus Ca+++ – calcium three pluses (OH)2 – ou eitʃ tou s2 – square second Ex. 5 Match the first column with the second one
Ex. 6 Write the following formulas and equations in words Н+ Cu+ Cd+++ Al++ Ca (OH)2 BaCO3 + Na2SO4 BaSO4 + Na2CO3 ZnS + 2HCl = ZnCl2 + H2S d-6 g8 kg / l 7oF 8oC P2O5 + C P + CO HNO3 + Cu Cu (NO3)2 + NO + H2O K2Cr2O7 + H2S + H2SO4 Cr2(SO4)3+ S + K2SO4 + H2O. Ex. 7 Write the following expressions in formulas Eks cubed Eks squared Eight is greater than seven Eleven degrees Celsius Four molecules of water plus carbon dioxide Calcium oxide Gramm per liter The tenth power of seven Cubic meter Square centimeter Negative calcium ion The square root of seven Magnesium permanganate reacts with water Trivalent positive aluminum ion Y over a Sodium Chloride plus hydrogen Ten minus seven is equal to three Second squared Ten plus seven is equal to seventeen. Additional Grammar Grammar: So, such, too, enough Too Use: Too means there is a lot of something. It shows a negative opinion. It’s too hot = It is very hot and I don’t like it. Form: You can use too before an adjective. It’s too cold. My trousers are too small. You can also use it before an adverb, You walk too fast. James speaks too quietly. Before a noun, use too much (uncountable nouns) or too many (countable nouns). I ate too much food. I ate too many sandwiches. You can also use too much after a verb. I ate too much. Paul drinks too much. Enough Use: Enough means you have what you need. We have enough food for everyone = everyone has some food. We don’t have enough chairs for everyone = some people don’t have chairs. Form: Write enough before a noun. We have enough chairs. But write it after an adjective or verb. Are you warm enough? He’s qualified enough. She isn’t tall enough to be a model. You don’t work hard enough. Are you sleeping enough? Sentences with enough are sometimes followed by to + verb infinitive. I’m not tall enough to reach the book. I haven’t got enough money to buy that coat. So Use: So means very. It’s so hot! Form: So is generally used before an adjective or an adverb. He’s so funny! He plays the piano so well! However, in modern English, it is increasingly being used before nouns and verbs. That dress is so last year! (= That dress is last year’s fashion) I’m so going to shout at him when I see him! (so = really) So can be used with a that clause, to show a result of the first clause. I was so hot that I couldn’t sleep. Such Use: Such also means very. Such is used before an adjective and noun. They are such nice children. Form: A / an, if necessary, go after such, not before. Like So, Such can be used with a that clause, to show a result of the first clause. It was such a nice day that we decided to go to the park. Common mistakes 1) Some students use too with a positive meaning. But you should use so or very here. 2) Some students write enough in the wrong place. Practical test 1. Which sentence is incorrect? a) This substance is too brittle. b) Don’t add too much acid! c) This substance too is dull. 2. Which sentence is correct ? a) This equation is such a difficult. b) Do we have acid enough? c) This metal is such a good conductor of electricity. 3. Which word goes in space: This substance produced too …. smoke. a) much b) many c) any 4. Which word goes in space: This acid is …harmful. a) such b) so c) enough 5. Which sentence is incorrect ? a) This substance produced smoke enough. b) This substance doesn’t react well enough with sulhpuric acid. c) This equation is too difficult for me. 6. Which word goes in space: Chemistry is …. an interesting science a) an b) such c) so 7. Which sentence is incorrect ? a) The density of metalloids is much low. b) Metalloids don’t have enough electrons. c) Metalloids conduct enough electricity. Unit 4 Future Simple Positive sentences
Negative sentences
Questions
The short form of Future Simple is the following: I, you, they, we, he, she, it’ll. For example: I’ll meet her tomorrow. When we use this tense: When we talk about future (next week / month/ year, tomorrow): I will do it next week. At the moment of speaking: The phone is ringing. I will answer it. When we offer to do something: You lost your book yesterday. I will help you to find it. We use after the following phrases: I think I don’t think Probably I am not sure I am sure I expect. When we agree to do something: Could you check my essay please? Ok, I will read your essay in the evening. When we promise to do something: I promise I won’t tell him about this accident. When we ask somebody to do something: Will you repeat this word again ? We use shall when we want to do things for other people: You look very hungry. Shall I make something for dinner? When we suggest something: It is a wonderful evening. Shall we go for a walk? To be going to Positive sentences
Negative sentences
Questions
We can also use the short form of to be (I’m, you’re, they’re, we’re, he’s, she’s, it’s), for example: I’m going to write a letter to my sister. When we use this construction: When we talk about our plans (what we decided to do): Next summer I am going to visit Paris. When we make predications using the information we have: Look at the sky! It is very cloudy. It is going to rain. In science sphere we use this construction when we make scientific predictions about changes or processes which we will see during experiments. For example: As you see this solution is going to change its color. жүктеу/скачать 422,31 Kb. Достарыңызбен бөлісу:
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