英语词汇ordinary structures的意思、翻译、用法及例句-英语用法大全

Contents overview

ordinary structures238 ordinary structuresIf you didn't study physics at school, you won't understand this book.I'll give her your love if I see her.1the same tenses as with other conjunctionsWhen we are not talking about 'unreal' situations (239), we use the same tenses with if as with other conjunctions. Present tenses are used to refer to the present, past tenses to the past, and so on. Compare:–Oil floats if you pour it on water.Iron goes red when it gets very hot.–If Jack didn't come to work yesterday, he was probably ill.As Jack didn't come to work yesterday, he was probably ill.–If you didn't study physics at school, you won't understand this book.Because you didn't study physics at school, you won't understand this book.2present tense with future meaningIn an if-clause, we normally use a present tense to talk about the future. This happens after most conjunctions (231). Compare:–I'll give her your love if I see her. (not … if I will see her.)I'll give her your love when I see her. (not … when I will see her.)–If we have fine weather tomorrow, I'm going to paint the windows.As soon as we have fine weather, I'm going to paint the windows.For if + will (e.g. if it will make you feel better), 243.For if + will in reported speech (e.g. I don't know if I'll be ready), 260.3.Previous Next

词组	ordinary structures
释义	Contents overview ordinary structuresIf238 ordinary structuresIf you didn't study physics at school, you won't understand this book.I'll give her your love if I see her.1the same tenses as with other conjunctionsWhen we are not talking about 'unreal' situations (239), we use the same tenses with if as with other conjunctions. Present tenses are used to refer to the present, past tenses to the past, and so on. Compare:–Oil floats if you pour it on water.Iron goes red when it gets very hot.–If Jack didn't come to work yesterday, he was probably ill.As Jack didn't come to work yesterday, he was probably ill.–If you didn't study physics at school, you won't understand this book.Because you didn't study physics at school, you won't understand this book.2present tense with future meaningIn an if-clause, we normally use a present tense to talk about the future. This happens after most conjunctions (231). Compare:–I'll give her your love if I see her. (not … if I will see her.)I'll give her your love when I see her. (not … when I will see her.)–If we have fine weather tomorrow, I'm going to paint the windows.As soon as we have fine weather, I'm going to paint the windows.For if + will (e.g. if it will make you feel better), 243.For if + will in reported speech (e.g. I don't know if I'll be ready), 260.3.Previous Next
随便看	in front of and opposite ing form as subject object or complement ing forms ing forms after nouns ing forms after nouns and adjectives tired of listening ing forms after prepositions without breaking eggs ing forms after verbs i enjoy travelling ing forms and infinitives ing forms introduction in order that in order that and so that in place in spite of instead instead and instead of instead of instructions instructions and requests will would can could might shall interrogative question word clauses in the end at the end at last in the end at the end at last and finally in time into on inversion auxiliary verb before subject inversion full verb before subject