修改稿Language points (Unit 2).ppt

Language points (Unit 2) 1.不定冠词 an SPCA officer an a , e, m ,n ,h ,f , I, o ,r , x an hour a useful book a uniform a one-day trip an eight-day trip 2.单词转换 society n. social adj. cruel adj. cruelty n. prevent v. prevention n. love n. v. lovely adj. loveliness n. safe adj. safely adv. safety n. save v. miss v. missing adj. thief n. thieves pl. hunt v. hunter n.  kind adj. n. unkind adj. kindness n. kindly adv. guard v. n. guarder n. hungry adj. hunger n. thirsty adj. thirst n. prefer v. preference n. care v. n. careful adj. careless adj. carefully adv. special adj. specialist n. 3.leave 遗弃，留下 Someone left these puppies in the street. Some people leave rubbish on the bench. I have left my notebook at home. √ I have forgot my notebook at home. × I can’t find my notebook. I have forgot where I put it. √ 4. 连接两类相似内容时，and 用于肯定句 or用于否定句They are in trouble. They need water and food. But they don’t have any water or food. They had no food or water. = They didn’t have any food or water. 在反义疑问句中的考查 They had no food or water, did they? 5.keep +n. + adj.keep the environment clean 保持keep the door open 保留keep doing sth.keep talking 保持，不停 keep the puppy as your pet You can keep the book for two weeks. 保存、借用 keep my/ his promise 履行 …诺言 keep …from… 保护…免于；使…免受 The fireman tried his best to keep the boy from the fire. keep…from doing 阻止..做某事 The mother tried to keep her son from shouting. 6.句意相同＊ Which one is your favourite? = Which one do you like best?＊ She prefers the white shirt to the black one. = She likes the white shirt better than the black one.＊ We should take good care of our books. =We should look after our books well. 7.feed 喂养 fed--fed feed sb./sth 喂养某人 (某动物) feed the bird feed sb./sth. on/with sth. 用某物喂… feed the baby on/with milk feed sth. to sb./sth…供…作食物，供应(饲料)给，用(某物)喂： feed grain to chickens =f