Page 175 - Grammar for Great Writing B
P. 175

ACTIVITY 5     Common Error 12.2

               Fill in the blanks with the correct passive forms of the verbs in parentheses.


                 1. Some genetic diseases                                     (simple present: carry) from one
                   generation to the next, while others skip a generation.

                 2. In solar cells, sunlight                                 (simple present: transform) into
                   electricity.

                 3. The migration of the monarch butterfly is so difficult and dangerous that many butterflies
                                                        (modal: can / lose) during each stage.


                 4. Parts of the Great Wall of China                                  (present progressive: destroy)
                   gradually by sandstorms, and                                     (modal: may / go) in under
                   20 years.

                 5. Studies show that original ideas                                  (simple present: form)

                   in more than one part of the brain at the same time.

                 6. Hippocrates                                     (simple present: know) as the father of modern
                   medicine because he was the first doctor to use science instead of magic to heal people.

                 7. Velcro                                    (simple past: not / invent) deliberately but rather by
                   accident when a Swiss scientist noticed the structure of the burrs sticking to his clothes.

                 8. Some psychologists think that the millennial generation

                   (present perfect: give) too much praise over the years.




                Common Error 12.3  Do you need passive or active voice?

                            were
                 The students recognized for their excellent work.
                             ^
                         worked
                 They are worked at the laboratory until late at night.

                 REMEMBER:  •   Use the active voice if the subject of the sentence is doing the action. Use the passive
                                voice if the subject is receiving the action.
                              •   Intransitive verbs do not have objects. Therefore, they cannot be used in the passive
                                voice.









                                                                                                Common Errors  165



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                    Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part.  WCN 02-200-203
   158-171_18606_GGW_SB_B_U12.indd   165                                                                         12/14/16   3:05 PM
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