老师：Hello guys, nice to meet you. I'm Miss Yang from highly Middle school. Today I'm very happy to be with you. In my online class, we are going to learn study skills of uniform. Do it yourself.
老师：1St. Look at the picture. Can you make up a sentence about it? Yes, we may say the family are happy to set off the fireworks. What about this picture? Can you fill in the blanks? Please pay attention to the blue word, right? The football players are not happy to lose the game. And here we can use a word to replace not happy. What's it? Right? Unhappy. Now please look at this picture. How to complete this sentence? Good. The room is not tidy. Would you like to spend some time making it tidy? And also, we can use another word to replace not tidy. That is, untidy. Now, let's come to these two pictures. And how to complete this sentence. Good. The left answer to the question is correct, while the right one is not correct. Also, we can use another word to replace not correct. What's it? Right. That's incorrect.
老师：Now, look at this picture. The boy has too much homework to do. Right? He will finish as much homework as possible, but it's not possible for him to finish all of it.
老师：Similarly, we can use another word to replace not possible. That is impossible. Good? Now, let's take a look at the all of the adjectives we have just met. Happy, unhappy, tidy, untidy. Correct, incorrect, possible, impossible. So what is the relationship between these pairs of words? Good. They are opposites. And also, please pay attention to the red letters here. What are they? Yes, they are called prefixes. What do these prefixes mean here? Good. They mean not. So can you make a conclusion according to the words above? Good. We can add in and aim before an adjective to express the opposite meaning. Now, would you please work out the opposite of the following words?
老师：Check the answers. Fair, unfair, I bow. Unable, usual, unusual, lucky, unlucky, certain, uncertain. And friendly, unfriendly. So what rule can you get from these words? Wonderful. We can get rule 1 for most of the adjectives we add on to make it opposite. Now let's come to these words. Also, please work out the opposite of these words. Are you ready? Check the answers. Active, inactive, direct, indirect, correct, incorrect, expensive, inexpensive. So this time, what rule can you get from the words above? That's it. We can get Rule 2 in is never used in front of the words which begin with LR. This time, let's learn about these words. Please tell me the opposite of the following words.
老师：Have you finished? Check the answers. Polite, impolite. Proper, improper, patient, impatient, possible, impossible. So this time, what rule can you get from these words? Great. We can get Rule 3. If the adjective begins wit
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