Unit 4 第2课时 Start up（分层作业）英语外研版三起四年级下册（新教材）

Unit 4 Plant life. 第2课时 Start up. 基础练 一、选出不同类的一项。 ( ) 1. A. dig B. plant C. seed ( ) 2. A. tomato B. cucumber C. water ( ) 3. A. digging B. planting C. grow ( ) 4. A. sunflower B. grapes C. snack ( ) 5. A. what B. where C. well 二、根据句意及首字母提示填空。 1. We are d______ a small garden for the class. 2. Sam has some s______ in his hand. He wants to plant them. 3. The girl is w______ the plants. They need water. 4. Look! They are p______ grapes in the garden. 5. Are your seeds g______? Yes, they are. Look at the green leaves! 三、根据图片内容匹配句子。 A. They are planting seeds. B. He is watering the plants. C. They are picking grapes. D. They are digging. ( ) ( ) ( ) ( ) 四、读句子，选最佳答案。 ( ) 1. —What ______ they doing? —They are digging. A. is B. am C. are ( ) 2. Sam's seeds ______ growing. A. isn't B. aren't C. not ( ) 3. Is he ______ the plants? A. water B. watering C. waters ( ) 4. —Are your seeds growing? —Yes, ______. A. they are B. it is C. they do ( ) 5. We are making a ______ garden for the class. A. small B. well C. fast 提升练 五、连词成句（填序号）。 1.①are ②doing ③What ④you (?) _____________________________________________________________________ 2.①digging ②We ③are ④garden ⑤a (.) _____________________________________________________________________ 3.①seeds ②growing ③Are ④your (?) _____________________________________________________________________ 4.①picking ②They ③grapes ④are (.) _____________________________________________________________________ 5.①seeds ②can't ③These ④grow (.) _____________________________________________________________________ ( A. Are your seeds growing? B. Why aren't Sam's seeds growing? C. We're making a small garden. D. These seeds can't grow. E. What are you planting? )六、根据对话情境，从方框选句子补全对话。 A: What are you doing? B: 1. ______ A: 2. ______ B: I'm planting tomato seeds. A: 3. ______ B: Yes, they are. Look! They are small and green. A: 4. ______ B: Oh, Sam. 5. ______ They are snacks! 七、问答匹配。 ( ) 1. What are they doing? A. I'm planting bean seeds. ( ) 2. Is he watering the plants? B. Because they are snacks. ( ) 3. What are you planting? C. They're digging. ( ) 4. Are your seeds growing? D. Yes, he is. ( ) 5. Why don't they grow? E. No, they aren't. 八、英汉翻译。 1. 我们正在挖地。 _____________________________________________________________________ 2.他正在给植物浇水。 _____________________________________________________________________ 3.They are picking grapes. _____________________________________________________________________ 4.What are you doing? _____________________________________________________________________ 5.萨姆的种子不能生长。 _____________________________________________________________________ 拓展练 九、阅读短文，判断正（T）误（F）。 Today is sunny. The children are in the school garden. They are very busy. Lily and Lucy are digging. Tom is planting tomato seeds. Look at Sam. He is watering the plants. Are the seeds growing? Yes, they are. They are picking some grapes, too. Everyone is happy in the garden. ( ) 1. The children are in the park. ( ) 2. Lily and Lucy are digging. ( ) 3. Tom is planting sunflower seeds. ( ) 4. Sam is watering the plants. ( ) 5. They are picking some grapes. 十、根据实际情况，仿写句子。 想一想你在花园里会做什么，用英语句子描述。 （示例：I am in the garden. I am planting seeds.） 1. I am __________________________________ 2. My friend is __________________________________ 3. We are __________________________________ 参考解析 基础练 一、选出不同类的一项。 1. 答案：C。解析：A、B为动词；C为名词。 2. 答案：C。解析：A、B为蔬菜名词；C为动词/名词（水）。 3. 答案：C。解析：A、B为动词ing形式；C为动词原形。 4. 答案：C。解析：A、B为植物/水果；C为零食。 5. 答案：C。解析：A、B为疑问词；C为副词。 二、根据句意及首字母提示填空。 1. digging 2. seeds 3. watering 4. picking 5. growing 三、根据图片内容匹配句子。 答案：A B C D 四、读句子，选最佳答案。 1. C (主语they用are) 2. B (主语seeds用aren't) 3. B (现在进行时用ing) 4. A (Are they引导用they are回答) 5. A (修饰名词garden用形容词) 提升练 五、连词成句。 1. ③①②④ (What are you doing?) 2. ②③①⑤④ (We are digging a garden.) 3. ③④①② (Are your seeds growing?) 4. ②④①③ (They are picking grapes.) 5. ③①②④ (These seeds can't grow.) 六、补全对话。 答案：1. C; 2. E; 3. A; 4. B; 5. D 七、问答匹配。 答案：1. C; 2. D; 3. A; 4. E; 5. B 八、英汉翻译。 1. We are digging. 2. He is watering the plants. 3他们正在摘葡萄。 3. 你/你们正在做什么？ 5. Sam's seeds can't grow. 拓展练 九、阅读短文。 1. F (在学校花园) 2. T 3. F (种的是西红柿种子) 4. T 5. T 十、仿写句子。 (略，合理即可) 第 页 学科网（北京）股份有限公司 $