Unit 4 第1课时 Get ready（分层作业）英语外研版三起四年级下册（新教材）

Unit 4 Plant life. 第1课时Get ready. 基础练 一、选出不同类的一项 ( ) 1. A. plant B. flower C. run ( ) 2. A. grow B. leaf C. root ( ) 3. A. seed B. stem C. jump ( ) 4. A. water B. sun C. draw ( ) 5. A. green B. tall C. plant 二、根据句意及首字母提示填空 1.A little s______ can grow into a big tree. 2.The plant has a long s______ and some big leaves. 3.We need to w______ the flowers every day, or they will die. 4.The plant likes the s______. It needs light to grow. 5.This flower has a beautiful red f______. 三、看图匹配单词 A. seed B. leaf C. stem D. flower E. root ( ) ( ) ( ) ( ) ( ) 四、读句子，选最佳答案 ( ) 1. A plant needs ______ to grow. A. book B. water C. pen ( ) 2. This is a small ______. It will grow into a plant. A. seed B. leaf C. stem ( ) 3. The tree has many green ______. A. root B. leafs C. leaves ( ) 4. —What colour is the flower? —It ______ red. A. is B. are C. am ( ) 5. We can see the ______ under the ground（地面）. A. stem B. root C. leaf 提升练 五、连词成句（填序号） 1.①needs ②water ③plant ④A ⑤to grow (.) _____________________________________________________________________ 2.①is ②This ③a ④small ⑤seed (.) _____________________________________________________________________ 3.①has ②It ③a ④long ⑤stem (.) _____________________________________________________________________ 4.①the ②green ③are ④Leaves (.) _____________________________________________________________________ 5.①we ②water ③Do ④the ⑤flowers (?) _____________________________________________________________________ 六、根据对话情境，从方框选句子补全对话 A: Look! I have a small thing in my hand. B: 1. ______ A: 2. ______ B: 3. ______ A: It needs water and the sun. B: 4. ______ A: 5. ______ B: Wow, it will grow into a beautiful sunflower. ( A. What is it? B. Does it need water? C. It's a sunflower seed. D. Yes, it does. We need to water it every day. E. What does it need to grow? ) 七、问答匹配 ( ) 1. What is this? A. They are green. ( ) 2. What colour are the leaves? B. It's a seed. ( ) 3. Does the plant need the sun? C. It has a stem and two leaves. ( ) 4. What does the small plant have? D. Yes, it does. ( ) 5. Do you like this flower? E. Yes, I do. It's very beautiful. 八、英汉翻译 1.一粒种子能长成一棵大树。 _____________________________________________________________________ 2.植物需要水和阳光来生长。 _____________________________________________________________________ 3.This plant has many beautiful yellow flowers. _____________________________________________________________________ 4.We need to look after the small plants carefully. _____________________________________________________________________ 5.树叶是绿色的，它们在树上摇晃。 _____________________________________________________________________ 拓展练 九、阅读短文，判断正（T）误（F） Hello, I'm Tom. I plant a bean seed in a pot（花盆）. I put some soil（泥土）in the pot first. Then I put the seed in the soil. I water it every day and put it in the sun. After one week, a small shoot（芽）comes out. It is small and green. After two weeks, the shoot has a small stem and two little leaves. I am very happy. I know it will grow into a big bean plant. It will have many beans one day. All plants need water, sun and soil to grow. We must look after them. ( ) 1. Tom plants a flower seed in a pot. ( ) 2. Tom puts the seed in the soil after adding some soil. ( ) 3. The small shoot comes out after one month. ( ) 4. The young plant has a stem and two leaves after two weeks. ( ) 5. All plants need water, sun and soil to grow. 十、根据实际情况，仿写句子 想一想你见过的植物，用英语句子描述它的特征（示例：This is a sunflower. It has a tall stem and big yellow flowers.） 参考解析 基础练 一、选出不同类的一项 1.答案：C 解析：A（植物）、B（花）均为名词；C（跑）是动词，词性不同，故选C。 2.答案：A 解析：B（叶子）、C（根）均为植物部位名词；A（生长）是动词，类别不同，故选A。 3.答案：C 解析：A（种子）、B（茎）均为植物部位名词；C（跳）是动词，类别不同，故选C。 4.答案：C 解析：A（水）、B（太阳）均为植物生长所需事物；C（画画）是动词，类别不同，故选C。 5.答案：C 解析：A（绿色的）、B（高的）均为形容词；C（植物）是名词，词性不同，故选C。 二、根据句意及首字母提示填空 1.答案：seed 解析：由“长成大树”可知，此处指种子，故填seed。 2.答案：stem 解析：结合植物部位常识，有长的茎和大叶子，故填stem。 3.答案：water 解析：由“否则它们会枯萎”可知，需要每天浇花，water此处为动词，意为“浇水”。 4.答案：sun 解析：由“需要光来生长”可知，植物喜欢太阳，故填sun。 5.答案：flower 解析：由“漂亮的红色”可知，此处指花，故填flower。 三、看图匹配单词 答案：E C B A D 四、读句子，选最佳答案 1.答案：B 解析：植物生长需要水，A（书）、C（笔）不符合常识，故选B。 2.答案：A 解析：能长成植物的是种子，B（叶子）、C（茎）是植物的一部分，故选A。 3.答案：C 解析：leaf的复数形式是leaves，many后接可数名词复数，故选C。 4.答案：A 解析：主语it是第三人称单数，be动词用is，故选A。 5.答案：B 解析：根在地下，A（茎）、C（叶子）在地面以上，故选B。 提升练 五、连词成句（填序号） 1.答案：④③①②⑤ (A plant needs water to grow.) 2.答案：②①③④⑤ (This is a small seed.) 3.答案：②①③④⑤ (It has a long stem.) 4.答案：④①③② (Leaves are the green.) 5.答案：③①②④⑤ (Do we water the flowers?) 六、根据对话情境，从方框选句子补全对话 答案：1.A；2.C；3.E；4.B；5.D 解析： 1.由答语介绍手中的东西可知，上文询问“这是什么”，选A。 2.回答上文的问题，说明是向日葵种子，选C。 3.由答语“它需要水和阳光”可知，上文询问生长所需条件，选E。 4.继续询问是否需要水，选B。 5.用yes回答一般疑问句，补充浇水的频率，选D。 七、问答匹配 答案：1.B；2.A；3.D；4.C；5.E 解析： 1.问句询问“这是什么”，答语回答是种子，选B。 2.问句询问叶子颜色，答语回答绿色，选A。 3.问句是一般疑问句，询问植物是否需要阳光，答语肯定回答，选D。 4.问句询问小植物有什么，答语描述其部位，选C。 5.问句询问是否喜欢花，答语肯定回答并说明原因，选E。 八、英汉翻译 1.答案：A seed can grow into a big tree. 2.答案：Plants need water and the sun to grow. 3.答案：这株植物有许多漂亮的黄色花朵。 4.答案：我们需要细心照料这些小植物。 5.答案：The leaves are green and they shake on the tree. 拓展练 九、阅读短文，判断正（T）误（F） 1.答案：F 解析：文中提到“I plant a bean seed in a pot”，是豆子种子而非花种子，故填F。 2.答案：T 解析：文中提到“I put some soil in the pot first. Then I put the seed in the soil.”，与题干一致，故填T。 3.答案：F 解析：文中提到“After one week, a small shoot comes out.”，是一周而非一个月，故填F。 4.答案：T 解析：文中提到“After two weeks, the shoot has a small stem and two little leaves.”，与题干一致，故填T。 5.答案：T 解析：文中提到“All plants need water, sun and soil to grow.”，与题干一致，故填T。 十、根据实际情况，仿写句子 （答案不唯一，合理即可） 1.示例：This is a rose. It has red flowers and small green leaves. 2.示例：This is a grass. It is short and green. 3.示例：This is a maple tree. It has red leaves in autumn. 学科网（北京）股份有限公司 $