Page 93 - Oxford_Grammar_for_Schools_4_SB_Neat 1
P. 93

Mustn't, don't have to, needn't                                      9 Look at the information about a job. Complete
                                                                                  the sentences with the correct form of have to.
           Mustn't and don't have to have different meanings.

           We use mustn't, especially in rules, to say something                      Looking for a summer job?
           is not permitted.
           You mustn't walk on the gross. (= Don't walk on the grass.)
                                                                                     Work on our summer camp in South America.
           You mustn't go in there. It's dangerous.
           I mustn,t eat that chocolate. I'm going to have dinner
           in a minute.
           We use don't have to to say something is not
           obligatory.
           We don't have to walk. We can go in the car.
           We don't have to go to the cinema. We can stay at my
           house and watch a DVD.

           We can use needn't in the same way as don't have to.
           We don't have to walk. = We needn't walk.
           We don't have to go to the cinema. = We needn't go
           to the cinema.

           Note: the negative form needn't is a modal verb and                      Essential                   Not essential
           is followed by the infinitive (without to). The affirmative
                                                                                    speak English               speak Spanish
           and question forms of need are followed by to + the
           infinitive.                                                              be enthusiastic             have a degree
           You needn't wait.
                                                                                                                have previous
           Do I need to wait?                                                       like children
                                                                                                                experience
           You need to wait.
                                                                                    be over 18                  be able to drive
                                                                                    enjoy outdoor
            8 Look at the signs at a swimming pool. Write rules                     activities                  play sport
                with must or mustn't and the words in the box.
                                                                                    work for at least four
                                                                                                                stay all summer
                                                                                    weeks
                                                                                  ÿ ÿ



                                                                                     You don't have to     speak Spanish.
                                                                                     You                   speak English.
                                                                                     You                   play sport.
                                                                                     You                   enjoy outdoor activities.
                                  A                                                  You                   have a degree.

                                                                                                           be enthusiastic.
                                                                                     You
                                                                                  6 You                    like children.
                                                                                  7 You                    have previous experience.
                   eat food have a shower jump run
                                                                                  8 You                    stay all summer.
                   take photos smoke use rubbish bins
                                                                                  9 You                    work for at least four weeks.
                   wear shoes
                                                                                 10 You                    be able to drive.
                ÿ You mustn,t yv
                1
                2
                3
                4
                5
                6
                7


                                                                                                                             Unit 16 91
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