tailieunhanh - Oxford practice grammar with answers part 38

We use to, in order to, so that and for to express purpose, to say why we do things. The purpose of stopping is to buy a newspaper. B To We can use the to-infinitive to express purpose. Melanie was hurrying to catch her bus. Most people work to earn money. I rang to find out the train times. We went to the library to get some books. C In order to and so as to In order to and so as to are more formal than to. The government took these measures in order to reduce crime. The staff are working at. | 151 To in order to so that and for We use to in order to so that and for to express purpose to say why we do things. The purpose of stopping is to buy a newspaper. B To We can use the to-infinitive to express purpose. Melanie was hurrying to catch her bus. Most people work to earn money. I rang to find out the train times. We went to the library to get some books. C In order to and so as to In order to and so as to are more formal than to. The government took these measures in order to reduce crime. The staff are working at weekends so as to complete the project in time. We can use the negative in order not to or so as not to. Melanie was hurrying in order not to miss her bus. The staff are working at weekends so as not to delay the project any further. We cannot use not to on its own. She was hurrying to catch her bus. NOT She was hurrying not to miss her bus. D So that Look at this example. I ll post the card today so that it gets there on Daniel s birthday. After so that we use a subject and verb . it gets. We often use will or can for a present purpose and would or could for a past purpose. I ll give you a map so that you can find you ll find the way all right. I gave Nick a map so that he could find would be able to find the way all right. E To or for We can use for with a noun to say why we do something. The whole family have gone outfor a bike ride. Why don t you come over for coffee To talk about the purpose of a thing we use either a to-infinitive or for an ing-form. This heater is to keep for keeping the plants warm in winter. This machine is used to cut for cutting plastic. But we do not use for an ing-form to talk about a specific action. I put the heater on to keep the plants warm NOT I put the heater on for keeping the plants warm. Exercises 1 To B Complete each sentence using to and these words cash a cheque finance her studies go to sleep hear the football results look smart Laura went to the bank to cash a cheque. 1 Mrs Miles sometimes takes a .