教学目标：

1.学习并掌握与家庭成员、家庭活动相关的词汇和表达方式。

2.学习并运用现在进行时来描述正在进行的家庭活动。

3.培养学生的听说能力和合作意识。

教学重点：

1.词汇与表达方式的掌握。

2.现在进行时的应用。

教学难点：

1.现在进行时句型的运用。

2.听力的理解和口语表达。

教学准备：

1.教材：《人教版四年级英语下册》Unit 5.

2.多媒体课件、图片、音频设备。

3.小组活动的分组卡片。

教学过程：

Step 1: Warm-up（热身）

1. Greet the students and do a quick review of the previous unit. Ask students questions about their family members and their daily activities.

Example questions:

- Who is in your family?

- What do you do with your family?

2. Introduce the topic of the lesson by asking the students about their favorite family activity. Encourage students to share their ideas with the class.

Step 2: Presentation（呈现）

1. Show pictures of different family activities on the screen, such as "cooking, reading, playing games, watching TV, etc."

2. Use the pictures to introduce and review the vocabulary words for different family activities. Use actions and gestures to help students understand the meanings of the words.

3. Repeat the vocabulary words as a whole class, and have students practice saying them individually.

Step 3: Practice（练习）

1. Play an audio recording that describes different family activities using the present continuous tense, such as "My mom is cooking, my dad is reading, my sister is playing games, etc." Have the students listen and repeat after the audio.

2. After listening and repeating, write the example sentences on the board and explain the usage of the present continuous tense.

3. Distribute handouts with sentences using the present continuous tense, and have students fill in the missing words. Then, ask students to have a pair practice by taking turns asking and answering the questions about their family activities using the present continuous tense.

Step 4: Listening（听力）

1. Play an audio recording of a conversation between two family members doing different activities. Ask the students to listen and answer questions about the conversation. For example, "What is the sister doing? What is the brother doing?"

2. After listening, invite students to share their answers with the class and discuss the conversation.

Step 5: Group Activity（小组活动）

1. Divide the students into small groups with the prepared grouping cards.

2. Give each group a set of picture cards depicting different family activities.

3. In their groups, students take turns picking a card and describing the picture using the present continuous tense. The other group members must guess the activity.

4. Rotate the cards and continue the activity until all the cards have been used.

5. Monitor the groups and provide assistance as needed.

Step 6: Wrap-up（总结）

1. Recap the new vocabulary words and the present continuous tense with the class.

2. Ask students to share their favorite family activity using the present continuous tense.

Step 7: Homework（作业）

1. Assign homework that reinforces the new vocabulary and sentences using the present continuous tense. For example, students can write a short paragraph about their family activities using the present continuous tense.

2. Collect the homework at the beginning of the next class.

通过以上的教学设计，希望能够帮助学生掌握与家庭成员和家庭活动相关的词汇和表达方式，并能够运用现在进行时来描述正在进行的家庭活动。同时，通过小组活动的方式，培养学生的听说能力和合作意识。