用于强调的it It可用来对句子的某一成分加以强调，这类句子的结构是：it+系动词+强调部分+who(m)或that+其他部分。这类句子可称为分裂句，这种结构称为分裂结构。例如：Mary is giving all her friends books for Christmas this year.（玛丽在圣诞节要向所有朋友赠书。）可改为许多强调结构： It is Mary who is giving all her friends books for Christmas this year.（强调主语） It is books that Mary is giving all her friends for Christmas this year.（强调直接宾语） It is all her friends that Mary is giving books for Christmas this year.（强调间接宾语） It is Christmas that Mary is giving all her friends books this year.（强调状语） It is this year that Mary is giving all her friends books for Christmas.（强调状语） 走遍美国视频下载 国际音标发音下载 商务英语下载 How about...? .....怎么样？ What about...？ 后加n/pron./v-ing. 【拓展】：表示建议的句型： What/How about...? .....怎么样？ Let’s do....shall we ?让我们...好吗？ Shall I/we...?  我们...好吗？ Why not do...? Why don’t you do...? 为什么不.....？   你为什么不....?  You’d better(not) do sth. 你最好（不）做某事 fall  [fɔːl] v/n倒塌；跌倒；掉落；秋天 He fell badly and broke his leg  The temperature could fall below zero overnigh.词性拓展: adj. 倒下的   fallen   A fallen tree was blocking the road  短语拓展: 突然倒下;跌倒fall down.  进入梦乡;睡着  fell asleep 爱上;坠入爱河 fell in love with sb  生病 fall ill  被...绊倒  fall over on the ice  落后fell behind with his schoolwork inside  [ˌɪnˈsaɪd] prep.在……里面 在强调主语时，可用who（有时用that）引导后面部分 It was Peter who lent us the money. 是彼得借钱给我们的。 It was you who had been wrong. 是你错了。 若主语是物不是人，则需用that： It is the first step that is troublesome. 万事开头难。 It is the unforeseen that always happens. 天有不测风云，人有旦夕祸福。 vegetable n.蔬菜 （vegetables） 作定语修饰名词时用单数： vegetable salad/noodles fruit n.  表示水果总称时，无复数形式。 I like fruit。 表示种类时，有复数形式。 There are many kinds of fruits in this bag.   possible  [ˈpɑːsəbl] 可能存在或发生的；可能的Eg: Is it possible to buy tickets in advance. Eg: Please take your seat as quickly/soon as possible. Eg:With today’s technology almost anything seems possible. 词性拓展:  adv. 可能地 possibly    反义词:impossible不可能的 Eg: It was impossible to sleep because of the noise.  Eg: It seems impossible that I could have walked by without noticing her.