Unit 6 How long have you been collecting shells? 1. how long 多长，多久 2. a skating marathon 滑冰马拉松 3. a pair of 一双，一副,一把，一条 4. raise money （for charity） （为慈善机构）募捐，筹钱 5. the whole five hours 整整五个小时 6. three and a half years 三年半 = three years and a half 7. thanks for 因……而表示感谢 8. run out of 用完，用尽 9. by the way 顺便说一下，顺
Unit 5 If you go to the party，you’ll have a great time!1. have a great/good/nice/wonderful time 玩得高兴 =have fun = enjoy oneself 2. at the party 在晚会上 3. end of year party 年终晚会 4.
