Unit 3,We should take care of ourselves,我们 应该 照顾,我们自己,take care of,照顾,can 能够，可以 need 需要 should 应该 must 必须 have to必须，不得不,英语中的情态动词,should 应该 用于第一人称(I、we)做主语的句子中。后面的谓语动词用动词原形,I should do more exercise,Should I do more exercisee ,We should plant more trees,Should we plant more trees ,Do you like him,No,I dont like him.Why,Hes too fat,脏孩子,Do you like him,No,I dont like him. Why,He is so dirty,Do you like him,Yes, I do.Why,Hes clean and healthy,We should take care of ourselves,Be a clean and healthy b
