21. Scientists are convincedthe positive effect of laughter_____physical and mental health.
A. of, at B. by, in C. of, on D. on, at
22. Alcohol is also classified as a downer, and though it is legal, it can damage the liver and do great harm if ________ in large quantities.
A. consume B. to consume C. consuming D. consumed
23. Betty shows great interest in this poem now, but she thought it boring _______ she read it.
A. at the first time B. the first time C. for the first time D. at first
24. The number 2008 is a special number, ________ I think, that will be remembered by the Chinese forever.
A. which B. what C. one D. it
牛津沪教四下Module 1《Unit 4 What can you smell and taste》ppt课件
牛津上海版四下《Unit 3 A busy family》ppt课件1
牛津上海版五下《Unit 4 Use your five senses》ppt课件1
牛津上海版四下《Unit 2 What can you hear》ppt课件2
牛津上海版四下《Unit 2 My toys》ppt课件
牛津上海版四下《Unit 3 A busy family》ppt课件2
牛津沪教四下Module 2《Unit 1 My pet》ppt课件之二
牛津上海版五下《Unit 2 Use your ears!》ppt课件2
牛津上海版五下《Unit 2 Favourite toys》ppt课件2
牛津上海版五下《Unit 1 Use your eyes!》ppt课件
牛津上海版五下《Unit 1 Animals in the zoo》ppt课件
牛津沪教四下Module 1《Unit 3 What can you feel》ppt课件
牛津上海版五下《Unit 2 Favourite toys》ppt课件1
牛津上海版四下《Unit 3 A busy family》ppt课件3
牛津上海版五下《Unit 1 Use your eyes!》ppt课件1
牛津沪教四下Module 1《Unit 1 Look》ppt课件
牛津上海版四下《Unit 1 My pet》ppt课件2
牛津沪教四下Module 1《Unit 1 Look》ppt课件之一
牛津沪教四上Module 1《Unit 3 What are you》ppt课件
牛津上海版四下《Unit 2 Listen!》ppt课件
牛津上海版四下《Unit 3 What can you feel》ppt课件
牛津上海版五下《Unit 1 Colours around us》ppt课件2
牛津上海版四下《Unit 3 A busy family》ppt课件
牛津上海版四下《Unit 1 My pet》ppt课件3
牛津上海版五下《Unit 2 Favourite toys》ppt课件
牛津上海版五下《Unit 4 Use your five senses》ppt课件
牛津上海版五下《Unit 1 Colours around us》ppt课件
牛津上海版五下《Unit 2 Use your ears!》ppt课件1
牛津上海版五上《Unit 2 Friends》ppt课件2
牛津上海版四下《Unit 1 Colours and places》ppt课件