八年级英语下册第二单元知识点总结：Unit 2 I’ll help to clean up the city parks

八年级英语下册第二单元知识点总结：Unit 2 I’ll help to clean up the city parks一、基本知识点1. sick  生病的，有病的；可在句中作表语Mary could not come because she is sick.   也可作定语a sick child  【区别ill】ill与sick同义；但是只在句中做表语，不做定语。Mary could not come because she is ill.2. cheer (sb.) up（让某人）变得高兴；振奋起来The good news cheered up everyone in our class.3. give out分发；散发，相当于hand out，The teacher is giving out/ handing out the test papers.  give sth. out to sb. 意为      把某物分发给某人    。4. volunteer  【名词】志愿者  【动词】义务做，自愿做（某事）volunteer to do sth.   自愿做某事 ，  The girls could volunteer in an after-school study program.5. used to do sth.过去/曾经(常)做某事，表示过去的习惯、动作或状态，并强调现在已经不再存在或发生。  There used to be a cinema here.  这里曾有一个照相机。     They told me stories about the past and how things used to be.   他们告诉我关于这里过去的故事。                         6. alone 【形容词】独自一人的，无感情色彩：The musician enjoyed living alone and writing songs himself. lonely （感到）孤独寂寞的，带有很强的感情色彩，可做表语或定语。The lonely boy is not lonely now.7. care for sb./sth.照顾；照料……  care 【名词】小心，关心take care of=look after  →【动词】care about sb./sth.关心，在意某人/事      →【形容词】careful   仔细的       / careless  粗心的    →【副词】carefully   仔细地           8. such “这样的，这种，如此”，用于修饰名词  such+ a/ an+形容词+单数名词：such a good day  多么美好的一天    /such an exciting match  多么  精彩的比赛  such+形容词+复数名词/不可数名词：such important decisions  多么重要的建议   such delicious food   多么美味的食物            如果名词前被many, much, few, little修饰时，只能用so，而不用such：so many sick children/ so little time9. try out for…参加…选拔，争取成为…Thirty football players tried out for the Best Player of the year.try out试用，试验10. journey 【名词】（尤指长途）旅行，行程；trip【名词】多指短途旅行；travel【名词、动词】travel around the world →【名词】traveler旅行者11.【复习】be busy with sth.   忙于（做）什么事情 be busy doing sth.      忙于（做）什么事情 12.【复习】try doing sth.   试着去做某事  try to do sth.   尽力去做某事     try one’s best (to do sth.) 尽某人最大的努力去做某事 13.【复习】be worried about sb./ sth. = worry about sb./ sth.   担心某人、某事  14. raise money集资，筹钱；raise money for…为……筹钱   raise【动词】举起；提高；募集15. keep【动词】keep+名词，保留（某物）；keep+形容词，保持16.【形容词】broken破损的，出毛病的；blind瞎的，失明的；deaf聋的；disabled有残疾的，丧失能力的；在句中做定语和表语。make it possible (for sb.) to do sth.使（某人）做某事成为可能，You helped to make it possible for me to have Lucky. make it +形容词(+for sb.) to do sth. 使（某人）做某事成为…； think/find it +形容词to do sth.18. make a difference to…对……有影响；对……有作用，difference前可以用no, any, some, much等修饰，如The rain made no difference to the game.             Hard-working makes much difference to study.19. difficulty【可数/不可数】表示抽象意义的“困难”时为不可数；表示具体的“难题、难事”时为可数；have difficulty (in) doing sth.= have trouble (in) doing sth.  做某事有困难 20. train【动词】训练，trained为过去分词，可做定语，意为“受过训练的”a trained dog21. be excited about sth.   对某事感到兴奋   ，Everyone is excited about the good news.  【复习】excited意为  兴奋的，修饰人；exciting意为   令人兴奋/激动的，修饰物。22. order【名词】命令，指示；顺序，次序【动词】订购；点（菜）follow the order。23. change【动词】变化，改变It’s hard for a person to change his life(style). 【名词】变化；零钱        change A for B用A换成B：When you travel in China, remember to change US dollars for RMB.repair 【动词】修理，修补； fix【动词】安装；使固定 【fix up修理=repair】