Unit 4 Keeping Clean一根据句意和首字母提示写单词，完成句子。1. In spring, its w_ and sunny.2. Its so c_today. Lets go outside and play.3. My dress is w_. I have to take it off.4. Empty(清空) the t_ bin (垃圾箱).5. Your shoes are d_. Clean them quickly.6. Your room is so m_. Your mum must be angry.二英汉互译。1. in the park_ 2. 捡起_3. over there _ 4. 今天早上_5. play outside _ 6. 晴天_7.come on _ 8. 全世界_三单选。( )1. London is a big city _ dirty air. A. on B. for C. with( )2. It _ dirty before, but it _ clean now. A. is is B. is was C. was is ( )3. Listen! Someone _ the violin. A. is playing B. plays C. playing( )4. Whats your bedroom _ today? A. / B. like C. look( )5. There are so _ cars in the city. A. much B. many C. lot( )6. My books _ on the floor this morning. They _ on the desk now. A. are are B. were are C. are were四用be动词的正确形式填空。1. There _ a big lake here before.2. There _ some tall buildings now.3. I _ listening to music now.4. They _ not at school yesterday.5. There _ some milk in the glass now. 五给问句选出正确的答语。1. Whats the weather like today?2. What are you doing?3. What was your hair like last month?4. Where was your sister yesterday?5. Are there any big shoping malls here?A. She was in the library.B. I am cleaning the kitchen.C. Its cook and sunny.D. My hair was short and curly.E. Yes, there are.