老师：同学们大家好，我是来自北京大学附属中学石景山学校的詹淑婷老师。今天我们一起来学习北师大版八年级上册第三单元第七课 time to exercise period row two now， lets start our lesson first lets review the walls race race rope sit up。
老师：Sit up. Push up. Push up. Active. Active. Sick, sick. Record. Record. Break the record. Break the record. Bit. Bit. A bit. A bit. Joke, joke, joke around. Joke around. Now let's listen to the tape and review the dialogue.
学生：Lesson 7, time to exercise. It's time for after class sports activities. Mike and David are discussing what they are going to do this week. Hey, David, are you going to run this week?
学生：Oh, last week I was faster than any other student. I want to break the record this year. How about you? Well, I'm not very good at running. I felt a bit sick after the first race, remember? How about sit UPS? Well, I think they're easier than push UPS. Well, maybe you're right, but sit UPS and pushups are still hard for me. I think running is easier.
学生：Okay. What about climbing a rope? That's easy. It's even harder than sit UPS and pushups. It's easy for you because you have stronger arms and larger hands. I always give up halfway through.
学生：Okay, well, what about the high jump? Your tool and you have strong legs. You're very good at jumping. That's a good idea. It's easier than any of these sports. Now, I can jump higher than that table. Look, really? Tables can't jump.
老师：We know that. Mike raise the activities from very easy to very hard. For Mike, doing a high jump is easier than running a race. Running a race is easier than doing setups or doing push UPS. And climbing a rope is harder than doing setups or doing push UPS. We can find the rate from Mike's dialogue. Let's review. Where does he say the first one? I think running is easier. The second one is even harder than C tops and pushups. The last one is easier than any of these sports.
老师：Now, please look at the wells in orange. Do you find something special? And let's look at the walls underlined. Why do we use the world then here? Can you find more sentences with the same pattern in the dialogue? Have you find these sentences? Let's read these sentences together.
老师：Please pay attention to the wealth in orange and the wells underlined. The first one, I was faster than any other student. The second one, I think they are easier than push UPS. The third one is easy for you because you have stronger arms and larger hands. The last one, I can jump higher than that table.
老师：From these sentences, have you found something in common? Today, we will study the grammar comparative. First, let's look at the examples on the table. The wells on the left are all adjectives or adverbs. They have comparative worms on the rise. And you will find that there are four patterns. Please look at the table carefully and
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