Методическая разработка по английскому языку для студентов факультета химии и химической технологии " Simple Chemistry" Алматы 2017
жүктеу/скачать 422,31 Kb.
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мет. разработка по химии
- Бұл бет үшін навигация:
- Affirmative forms of the verb to be
- Interrogative forms of the verb to be (or the forms of general questions)
- Interrogative forms with question words (or the forms of special questions)
- Where is oxygen soluble
- What is a chemical element
- Question word (what) + noun + to be verb
- Negative Forms of the verb to be
| Unit 1
Present Simple Positive sentences
We add -s after he, she, it: I start ® he starts. If the verb ends in -ch, -o, -sh, -ss we add -es: I watch ® he watches, I go ® he goes. If the verb ends -y we add -ies: I study ® he studies. Negative sentences
Questions (general)
Questions (special)
Questions to the subject
When we put the questions to the subject we always use the verb in singular and we don’t use an auxiliary verb. For example: We read it every day. Who reads it every day? Verb to be The verb to be is the most important verb in the English language. It is difficult to use it because it is an irregular verb in all of its forms. In the simple present tense, to be is conjugated as follows: Affirmative forms of the verb to be
Interrogative forms of the verb to be (or the forms of general questions):
Interrogative forms with question words (or the forms of special questions):Question word + to be verb + nounWe use this formula when we put the question to the object, adverbial modifier of place or time.For example:Oxygen is soluble in water.Where is oxygen soluble?This acid is an azeotrope at ambient temperature.When is this acid an azeotrope?Question word + to be verbWe use this formula when we put the question to the subject.For example:Oxygen is a chemical element.What is a chemical element?Note: when we put the questions to the subject we must use only singular.Acids are red substancesWhat are red substances – is incorrectWhat is red substances - is correctWhen we want to put the question to the adjective we must use the following structure:Question word (what) + noun + to be verbFor example:Nitric acid is a powerful agent.What agent is nitric acid? orWe use it at normal temperature.At what temperature do we use it?After the question word what we must put the noun that is the part of nominal predicate.If we want to put the question to the adjective designating colour, size, height, weight we should use the question word what, for example: What colour is this metal ? Negative Forms of the verb to be:
When we use Present Simple: We use this tense when we talk about the actions that take place every day. At that we use such adverbs as always, frequently, often, every day/week/month/year, sometimes, seldom and rarely: I go fishing every day. We use this tense when we talk about well-known-facts: She comes from France. Water contains oxygen and hydrogen. The place of adverbs in the sentences Always, often, sometimes, seldom, rarely: Positive sentence: I always (often, sometimes, seldom, rarely, frequently) play football. Question: Do you always (often, sometimes, seldom, rarely, frequently) play football? Negative sentence: I don’t always (often, sometimes, seldom, rarely, frequently) play football. Every day/week/month/year Positive sentence: I go to work every day. Question: Do you go to work every day? Negative sentence: I don’t go to work every day. The adverb sometimes can be placed at the beginning of positive sentences: Sometimes I listen to music. Vocabulary nitric acid – азотная кислота reaction – реакция a substance – вещество corrosive – коррозионный a color – цвет colorless - бесцветный an odour – запах odorless - без запаха acrid – едкий commercially available – имеющиеся на рынке a mineral acid – минеральная кислота an azeotrope – азеотроп to be known – известно pure – чистый a compound – соединение boiling point – температура кипения melting point (m.p.) – температура плавления solid – твердый, твердое тело hydrate – гидрат monohydrate – моногидрат trihydrate – тригидрат to undergo – подвергать to give rise – вызывать a variation – изменение vapor pressure – давление пара above – над a liquid – жидкость because – из-за to produce – образовывать, получать to dissolve – растворяться dissolved – растворенный low - низкий partly – частично completely – полностью thermal decomposition – распад под действием тепла to contain – содержать fuming nitric acid – дымящаяся азотная кислота to use - использовать explosive industry – производство взрывчатых веществ volatile – летучий approximate – приблизительный anhydrous acid – ангидрит кислоты, безводная кислота red fuming nitric acid – красная дымящаяся азотная кислота a substantial quantity – значительное количество to leave – оставлять reddish-brown – красновато – коричневый due to – из-за a reagent – реагент a concentration - концентрация nitration – нитрирование an addition – добавление nitro group – нитро группа an organic molecule – органическая молекула an ambient temperature – комнатная температура an oxidizing agent - окислитель powerful – сильный density – плотность nitrogen азот nitrogen oxide – оксид азота soluble – растворимый non-negligible – значительный, существенный negligible –не существенный variation – изменение fume – дым, дымиться to include – включать molecule – молекула zinc – цинк some – некоторый in – в for – для in the process of – в процессе strong – сильный, прочный ambient temperature – комнатная (наружная) температура жүктеу/скачать 422,31 Kb. Достарыңызбен бөлісу:
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