Unit2 I’ll help to clean up the city parks?（词汇讲解）词汇 一、raise/rise课文原句：For example, we can make plans to visit sick children in the hospital or raise money for homeless people.讲解：词组：raise money“集资、筹”；raise money for... “为……筹”raise/rise的区别：raise是及物动词，提起、使升高、引起、扬起、、增加、筹款、召集、提出、养育。如：raise one's hand “举手”; raise crops “种庄稼”; raise a building “造起一座房子”; raise a cloud of dust “扬起一片尘土”; raise one's voice “嗓音”; raise funds “筹集资金”; raise a question “提出问题”。They raise the flag every morning. 他们每天早上升旗。rise是不及物动词， 上升、升高、上涨。如：The sun rises in the east. 太阳从东边升起。Her spirits rose at the news. 她听到那消息异兴奋。His voice rose in danger. 在险境中，他了嗓门。The cost of living continues to rise. 生活成本继续上涨。词汇 二、alone / lonely课文原句：A lot of old people are lonely.I want to travel alone. My parents told me not to do it. 语法讲解： 词汇 三、put短语（put off put up）put的短语课文原句：Clean-Up Day is only two weeks from now. We can't put off making a plan.put off意为“推迟，延期”；如：Teddy put off his travel to next week because he was sick.put up意为“举起，贴”；如：We could put up signs.拓展： 词汇 四、come up with课文原句：We need to |
