仁爱科普版（2024） 七上英语 Unit 5 Love Mother Nature Exploring the Topic-Grammar in use 学案

课题 仁爱科普版 七上英语Unit 5 Exploring the Topic-Grammar in use 导学案
课型 新授 主备人
一、学习目标 1. 掌握不定冠词 a 、 an 和定冠词 the 的用法。 2. 理解并能够正确运用情态动词 can 和 can't 。 二、学习重难点 1. 重点 区分不定冠词 a 和 an 的用法。 掌握定冠词 the 在特定情境中的使用规则。 理解和运用情态动词 can 表示能力、许可，以及 can't 表示否定。 2. 难点 能够根据语境准确选择使用合适的冠词。 灵活运用情态动词描述事物的能力和可能性。 三、学习过程 （一）Articles Activity 1: Look at the pictures and read the sentences. Pay attention to a, an and the. 1. A plant needs three things to grow: sun, earth and water. 分析：在这个句子中，“sun”、“earth”和“water”都是独一无二的事物，属于泛指，前面不需要加冠词。 2. There is an egg and a ball. The egg is small, but the ball is big. 分析：“an egg”中，“egg”是以元音音素开头，所以用不定冠词“an”；“a ball”中，“ball”是以辅音音素开头，用“a”；第二次提到“egg”和“ball”时，是特指前面提到的那个“egg”和“ball”，所以用定冠词“the”。 3. A man is looking at the pictures about nature. He likes the pictures. 分析：第一次提到“pictures”时是泛指，用不定冠词“a”；第二次提到时是特指前面提到的那些“pictures”，用定冠词“the”。 Activity 2: Complete the table with proper articles. Word Articlecow adesk abook ahelpful book anew plant alake themap aegg anold man anhour anapple anelephant aninteresting film anpanda thesky theguitar the总结与归纳 1. 不定冠词 a 和 an 的用法： a 用于辅音音素开头的单词前； an 用于元音音素开头的单词前。 注意：判断一个单词是元音音素开头还是辅音音素开头，不是看单词的首字母，而是看单词的读音。 2. 定冠词 the 的用法： 特指上文提到过的人或物。 特指世界上独一无二的事物，如：the sun, the moon, the earth 等。 用于序数词和形容词最高级前。 用于乐器名称前。 Activity 3: Read the text and fill in the blanks with a, an or the. There are four seasons in a year. In spring, the weather is warm. Sometimes it is windy, so I can go to a park and fly a kite there. My favorite season is summer because I can wear nice dresses. I have an orange dress and all my friends like it. In autumn, I eat an apple every day. And in winter, I can make a snowman after it snows. 解析 1. “the weather”表示特指春天的天气。 2. “go to a park”，“park”是泛指的一个公园，用“a”。 3. “fly a kite”，“kite”是泛指的一个风筝，用“a”。 4. “an orange dress”，“orange”是以元音音素开头，用“an”。 5. “eat an apple”，“apple”是以元音音素开头，用“an”。 6. “make a snowman”，“snowman”是泛指的一个雪人，用“a”。 （二）Modal Verbs Activity 1: Look at the pictures and read the sentences. Pay attention to the modal verb can and its negative form can't. 1. A bee can fly in flowers. 分析：“can”表示“能够”，在这个句子中表示蜜蜂有在花丛中飞的能力。 2. Sharks can swim in the water. Monkeys can climb trees. 分析：“can”用于描述鲨鱼能在水中游泳和猴子能爬树的能力。 3. It can't swim in the water. They can't climb trees. They can't fly in the sky. 分析：“can't”表示“不能”，否定了前面提到的事物的某种能力。 Activity 2: Pair plete the table, and then ask and answer questions in pairs. Can/Can’t Question AnswerCan Can pine trees grow very tall Yes, they can.Can Can a shark swim Yes, it can. But it can't climb.Can Can butterflies jump No, they can't. But they can fly.Can Can a duck fly Yes, it can. But it can't fly very high.Can Can plants and animals live together in nature Yes, they can.总结 “can”表示能力、可能性或许可，“can't”表示否定的能力、可能性或不许可。 Activity 3: Read the text and fill in the blanks with can or can't. Menglan is a panda in a zoo. People feed him, or go very near him, but they can watch him. Menglan is very lovely. He can climb high in a tree. He can play with his toys. He can't talk, but when people call his name, he can understand it. It is great fun to watch him in the zoo. 解析 1. “can watch”表示能够观看。 2. “can climb”和“can play”表示有爬和玩的能力。 3. “can't talk”表示不会说话。 4. “can understand”表示能够理解。 四、课堂练习 （一）选择正确的冠词填空 1. There is ______ old book on the desk. A. a B. an C. the 2. This is ______ useful dictionary. A. a B. an C. the 3. I have ______ apple. It's red. A. a B. an C. the 4. The girl is playing ______ piano. A. a B. an C. the 5. We go to school five days ______ week. A. a B. an C. the （二）用 can 或 can't 填空 1. Elephants ______ fly. 2. Fish ______ swim. 3. A bird ______ sing. 4. I ______ play football very well. 5. He ______ speak Chinese. 五、课后拓展 （一）观察生活中的事物，用不定冠词 a 、 an 和定冠词 the 描述它们。 （二）用情态动词 can 和 can't 描述自己和家人的能力。