英语词汇as when and while simultaneous events的意思、翻译、用法及例句-英语用法大全

Contents overview

as , when and while : simultaneous events251 as, when and while: simultaneous eventsTo talk about actions or situations that take place at the same time, we can use as, when or while. There are some differences.1'backgrounds': as, when or whileWe can use all three words to introduce a longer 'background' action or situation, which is/was going on when something else happens/happened.As I was walking down the street I saw Joe driving a Porsche.The telephone always rings when you are having a bath.While they were playing cards, somebody broke into the house.A progressive tense is usually used for the longer 'background' action or situation (was walking; are having; were playing). But as and while can be used with a simple tense, especially with a 'state' verb like sit, lie, or grow.As I sat reading the paper, the door burst open.We can also describe situations like these by using when to introduce the shorter action or event. As and while cannot be used in this way.When the telephone rang I was having a bath. (not As/While the telephone rang …)When the burglar broke into the house, they were playing cards.2simultaneous long actions: while; asWe usually use while to say that two longer actions or situations go/went on at the same time. We can use progressive or simple tenses.While you were reading the paper, I was working.Jack cooked supper while I watched TV.As is used (with simple tenses) to talk about two situations which develop or change together.As I get older I get more optimistic.We prefer when to refer to ages and periods of life.When I was a child we lived in London. (not As/While I was a child …)His parents died when he was twelve. (not … while he was twelve.)3simultaneous short actions: (just) as; (just) whenWe usually use (just) as to say that two short actions or events happen/happened at the same time.As I opened my eyes I heard a strange voice.Emily always arrives just as I start work.(Just) when is also possible.I thought of it just when you opened your mouth.4future referenceAs with other time conjunctions, we use present tenses with as, when and while when talking about the future.As you get used to the work you'll find it quite easy.I'll wash some clothes while you're out.We'll feel a lot better when we'relying on the beach next week.5reduced clauses with when and whileIt is often possible to leave out subject + be after when (especially when it means 'whenever'), and after while. This is rather formal.Don't forget to signal when turning right. (= … when you are turning right.)Climb when ready. (= … when you are ready.)While in Germany, he got to know a family of musicians. (= While he was …)For other uses of as, when and while, search the Index.Previous Next

词组	as when and while simultaneous events
释义	Contents overview as , when and while : simultaneous eventsOther Adverbial Clauses251 as, when and while: simultaneous eventsTo talk about actions or situations that take place at the same time, we can use as, when or while. There are some differences.1'backgrounds': as, when or whileWe can use all three words to introduce a longer 'background' action or situation, which is/was going on when something else happens/happened.As I was walking down the street I saw Joe driving a Porsche.The telephone always rings when you are having a bath.While they were playing cards, somebody broke into the house.A progressive tense is usually used for the longer 'background' action or situation (was walking; are having; were playing). But as and while can be used with a simple tense, especially with a 'state' verb like sit, lie, or grow.As I sat reading the paper, the door burst open.We can also describe situations like these by using when to introduce the shorter action or event. As and while cannot be used in this way.When the telephone rang I was having a bath. (not As/While the telephone rang …)When the burglar broke into the house, they were playing cards.2simultaneous long actions: while; asWe usually use while to say that two longer actions or situations go/went on at the same time. We can use progressive or simple tenses.While you were reading the paper, I was working.Jack cooked supper while I watched TV.As is used (with simple tenses) to talk about two situations which develop or change together.As I get older I get more optimistic.We prefer when to refer to ages and periods of life.When I was a child we lived in London. (not As/While I was a child …)His parents died when he was twelve. (not … while he was twelve.)3simultaneous short actions: (just) as; (just) whenWe usually use (just) as to say that two short actions or events happen/happened at the same time.As I opened my eyes I heard a strange voice.Emily always arrives just as I start work.(Just) when is also possible.I thought of it just when you opened your mouth.4future referenceAs with other time conjunctions, we use present tenses with as, when and while when talking about the future.As you get used to the work you'll find it quite easy.I'll wash some clothes while you're out.We'll feel a lot better when we'relying on the beach next week.5reduced clauses with when and whileIt is often possible to leave out subject + be after when (especially when it means 'whenever'), and after while. This is rather formal.Don't forget to signal when turning right. (= … when you are turning right.)Climb when ready. (= … when you are ready.)While in Germany, he got to know a family of musicians. (= While he was …)For other uses of as, when and while, search the Index.Previous Next
随便看	as because since as because since and for as clauses leaving out subjects etc as if as if and as though like ask as long as as similarity function as such as though like as usual as well as well also as well also and too as well as as when as when and while simultaneous events at all at first at first and first at in at in and to at last finally in the end at last finally in the end and at the end at on