| 词组 | prepositions introduction | |||||||||||||||||||||||||||||||||
| 释义 | Contents overview Prepositions introduction Section 18 Prepositionsintroductionmeanings and useIt is difficult to learn to use prepositions correctly in a foreign language. Most English prepositions have several different functions (for instance, one well-known dictionary lists fifteen main uses of at), and these may correspond to several different prepositions in another language. At the same time, different prepositions can have very similar uses (in the morning, on Monday morning, at night). Many nouns, verbs and adjectives are normally followed by particular prepositions: we say the reason for, depend on, angry with somebody. Often the correct preposition cannot be guessed, and one has to learn the expression as a whole. In some expressions English has no preposition where one may be used in another language; in other expressions the opposite is true.word orderIn English, prepositions can come at the ends of clauses in certain structures, especially in an informal style. For details, 209.What are you thinking about?She's not very easy to talk to.-ing formsWhen we use verbs after prepositions, we use -ing forms, not infinitives. For details, 104, 211.She keeps fit by going to the gym.When to is a preposition, it is also followed by -ing forms. (104.2)I look forward to seeing you soon.prepositions before conjunctionsPrepositions are sometimes dropped before conjunctions and sometimes not. For details, 210.I'm not certain (of) what I'm supposed to do.The question (of) whether they should turn back was never discussed.prepositions, adverb particles and conjunctionsWords like on, off, up, down can function both as prepositions and as adverb particles. For the difference, 195. For verbs with prepositions and particles, 12–13.She ran up the stairs. (preposition)She picked it up. (adverb particle)Some prepositions can also function as conjunctions: 249 (after), 250 (before) and 579 (since).Do you know what's wrong with these, and why?You bought it? What money with? 209.2 | I admired the patience she spoke with. 209.6 | Which period did it happen during? 209.6 | For whom is it, madam? 209.7 | To where shall I send it? 209.7 | In my family, about money was never spoken. 209.7 | I knew about that he had problems. 210.1 | The judge paid a lot of attention that the child was unhappy. 210.3 | He said the parents were responsible for that the child had run away. 210.3 | I'm worried where she is. 210.4 | I'm concerned about if you're ill. 210.4 | I don't like the idea of to get married. 211 | Try to see it after my point of view. 212 | She looks much younger on this picture. 212 | I like walking under the rain. 212 | What time do we arrive to Cardiff? 213 | I'm not bad in tennis. 213 | She doesn't want to depend of her parents. 213 | Who's the woman dressed with green? 213 | We must discuss about your plans. 214.1 | See you on next Monday. 214.2 | contents of this section
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