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八年级英语上册知识点总结
Unten, quite, often, never, every day, once a week , twice a month , three times a month , three or four times a month 等。
翻译：“你们多久到工厂去一次？〞“每星期两次。〞  
“How often do you go to the factory"〞 “Twice a week. 〞
“他们多长时间举办一次舞会？〞“通常每两周举办一次。〞                                                           
“How often do they have a dancing party"〞 “Usually, once every other week.〞
“他多久去购一次物？〞“一个月一次。〞                                                          
“How often does he go shopping"〞 “He goes shopping once a month.〞
2. “What do you usually do on weekends"〞 “ I usually play soccer.〞
“周末你通常做什么？〞“我通常踢足球。〞
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第一个do为助动词, 在这起帮助构成疑问的作用；而第二个do则是实义动词。
翻译：
What do you usually do on weekends" I often go to the movies.                                                                
What does she usually do on weekends" She sometimes go hiking.                               
3. “What’s your favorite program"〞 “It’s Animal World.〞
=What program do you like best"
      “你最喜欢什么节目？〞“动物世界。〞
4. As for homework , most students do homework every day . 
as for...意思是“至于；关于〞，常用于句首作状语，其后跟名词、代词或动词的-ing形式〔即动名词〕。如： As for him，I never want to see him here. 至于他，我永远不希望在这里见到。
         As for the story，you'd better not believe it. 关于那故事，你最好不要相信。
翻译：至于我自己，我现在不想去。 (As for myself, I don’t want to go now. )    
至于那个人，我什么都不知道。(As for the man, I know nothing about him.)
5. Mom wants me to get up at 6:00 and play ping-pong with her . 
want to do sth. 意思是“想要做*事〞；
want sb. to do “想要*人做*事〞。如：
Do you want to go to the movies with me？你想和我一起去看电影吗？
The teacher doesn't want us to eat 。
6. She says it’s good for my health.
be good for...表示“对……有益〔有好处〕〞;其反义为：be bad for...。〔这里for 是介词，后跟名词、代词或动名词〕
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