151 in the sun 在太陽下

　　152 increase 增加

　　eg : They've increased the prece of petrol by 3% 他們把石油價增加了3%

　　the population has increased from 12 million ten years ago to 18 million now

　　153 instead of +（名 ） 代替

　　eg: I'd like an apple instead of a pear 我想要蘋果，而不要梨子

　　I like English instead of math 我喜歡英語而不喜歡數(shù)學(xué)

　　154 introduce sb to sb 介紹某人給某人 introduce oneself 自我介紹

　　155 invite sb to do sth 邀請某人做某事

　　156 It takes sb sometime to do sth 做某人花掉某人多少時間

　　eg : It took me 5 minutes to do my homework It takes me half an hour to cook

　　157 It's +adj +for sb to do sth 對某人來說做某事怎么樣

　　158 It's +adj +to do 做某事怎么樣

　　159 It's +adj for sb 對于某人來說怎么樣 It's +adj of sb 對某人來說太怎么樣

　　160 It's +adj(for sb) to do（對某人來說） 做某事怎么樣 It's +adj ofsb to do sth 對某人來說做某事太怎么樣

　　eg : It's nice of you to help me with my English

　　161 It's a good idea for sb to do sth 對…… 來說是個好主意

　　162 It's important to sb 對某人來說很重要 eg: It's important tome

　　163 It's time to do sth It's time for sth 到了該去做某事的時間

　　eg : It's time to have class It's time for class 該去上課了

　　164 join = take part in 參加

　　165 just now 剛才

　　166 keep +sb /sth +adj /介詞短語 讓什么保持什么樣？

　　167 keep out 不讓 …… 進入

　　168 keep sb adj 讓……保持…… eg: Iwant to keep my mother happy keep healthy 保持健康

　　169 key to +名詞 表示：某物的鑰匙或某題的答案

　　170 key to… anser to … key 可以是答題或鑰匙

　　171 laugh at… 取笑…… eg : Don't langh at others Welanghed at the joke

　　172 learn by oneslfe 自學(xué)

　　173 learn from sb 向某人學(xué)習(xí) eg: We should learn from LeiFeng

　　174 learn to do sth 學(xué)做某事

　　175 let sb do sth 讓某人做某事