What You Should Learn to Do
① Talk about giving and going to parties, get-togethers, reunions, etc.
② Discuss arrangements and preparations for social activities
③ Invite and come to see exhibitions and shows
④ Understand and write notices for social activities
What You Should Know About
① The way New Year’s Day is celebrated around the world
② Traditional customs by which the Chinese celebrate holidays
③ Use of the comparative form of adjectives and adverbs
Grammar Reviewing and Sentence Writing: Simple Past and Present Perfect
过去时态与现在完成时态
I. Simple Past(一般过去时态）
I）过去时态的基本用法：
表示过去时间发生的行为或存在的状态，通常与表示过去时间的状语连用，如last, yesterday, the day before yesterday，等等。如：
1) He went to Europe three years ago.
2) She often came to see us when she was here
II)过去时态的其他用法，写作中要特别注意学习使用：
1.在虚拟语气中使用一般过去时，表示不真实的假设：
1) If I were you, I would go immediately.
2) I would rather you sent out this letter right away.
2.情态动词的过去式could，might, would，should 有时不表示过去，而表示一种委婉语气。
1) Could you open the window for me, please?
2) Would you like some apples?
II. Present Perfect（现在完成时态）
I)现在完成时态的基本用法：
现在完成时态表示行为或状态在过去已经发生或存在，但其产生的后果或造成的影响至今依然存在。
1) We've known each other for about two years.
2) His mother has been ill since last month.
3) Have you returned the book?
4) The little girl has been to Japan twice.
II）现在完成时态与非延续性动词：
英语中非延续性动词用于现在完成时态时，不能与由 for引出的表示延续性时间的状语连用；这是我们使用现在完成时态经常犯的一个错误。试比较：
“我来这里已经两天了。”
误：I have come here for two duys.
正：I cume here two days ago.
“他去上海已经一个星期了。”
误: He has left for Shanghai for a week.
正: He left for Shanghai a week ago.
但用于否定式和被动语态，则无此限制。如：
1) The film has been put on at this cinema for two weeks.
2) I hawen't received any of her emails for a long time.
III）现在完成时态常用的时间副词状语
1.表示频率的副词和副词just 放在主要动词的前边。
Mr. Rose has just/ often/ never/ already been to the beach.
2. still, never, ever这些刷词与现在完成时连用时，stil适常放在 have 欧has 之前，而 never 和 ever 放在 have 或has 之后。
1) He still hasnt used his money in the bank.
2) This is the most exciting film I have ever seen.
3. already 和 yet 与现在完成时连用时，already 通常用于肯定句中，yet 通常用于否定句与疑问句中；aheady经常放在 has 和 have 之后，但也可置于句末，而 yet则经常置于句末。
1) He has already sailed around the world twice so far.
2) He hasn't had a serious accident yet.
4. since 和 for 也经常与现在完成时连用。指一段时间的开始用 since；指一段时间, 用for。
He has been away + since buly 2./
since last March.
He has been in Europe + for ten days./
for a long time.
