 Welcome to lesson one of the American English Pronunciation Course. Today we're going to practice the difference between seat, sit and set. The secret to making the difference between these three sounds is how much you open your mouth. For the E sound in seat, your mouth is almost closed. For the I sound in sit, your mouth is a little more open. And for the E sound in set, your mouth is even more open. Watch me, listen and repeat. E, seat, E, sit, E, set. Let's practice each sound individually. Common words like seat, easy, each, even, green, piece, key, we, be, see. Notice that this sound can be spelled several different ways. Listen to and repeat these common words like sit, it, if, is, little, big, sick, win, chips, finish. Now listen to and repeat these common words like set, egg, extra, end, ten, head, friend, many, said, again. This sound can also be spelled in several different ways. Now let's practice making the difference with pairs of words that are different by only one sound. Listen and repeat. Leave, live, heat, read, red, teen, fill, mess, miss, dead, did, these, this. Are you ready for something more difficult? Now you're going to see two words and I'm going to say only one of them. You have three seconds to identify the word I say before the answer appears. Beat, will, sin, feel, best, bitter, hell, sense. It's important to practice these words in sentences too. Here are nine practice sentences. Three of them focus on the sound in seat, three of them focus on the sound in sit, and three of them focus on the sound in set. I'm going to say each sentence one time slowly and one time at normal speed and I want you to repeat both times. Sentences focusing on seat. He teaches reading to three people. He teaches reading to three people. We keep the sheep out of the heat. We keep the sheep out of the heat. She doesn't believe we should eat meat. She doesn't believe we should eat meat. Sentences focusing on sit. There's a bit of chicken and fish in the kitchen. There's a bit of chicken and fish in the kitchen. It's not a quick fix for the business. It's not a quick fix for the business. Jim lives in a big building in the middle of the city. Jim lives in a big building in the middle of the city. Sentences focusing on set. Wendy said she met many men. Wendy said she met many men. My best friend, Kevin, checked the test. My best friend, Kevin, checked the test. Don't put your wet, sweaty head on the bed. Don't put your wet, sweaty head on the bed. You finished lesson one of the American English pronunciation course. This was a free sample lesson from the course. If you want to get lessons two to thirty, click the register button under this video. And if you're already registered, you'll receive lesson two by email tomorrow.