Irgasheva nasiba dadajanovna mechanical english

Audioscript


Unit 1
Exercise 3
Read out the direction. Allow some time for students
to read the statements. Instruct students to mark the statements as T or F. Have students correct the false statements to make them true. Ask simple comprehension questions about the conversation.
For example: What does the instructor want to review? (He wants to review electric currents.) What
mistake does the student make? (He says deep current instead of direct current.) What is direct current? (It is when the flow of electrons switched directions every so often.)

Exercise 4

Instructor (F): Okay Ralph, let's review one more time. What is an electric current?
Student (M): It's when charged particles flow through something, right?
Instructor: That's right. Good job . Now, what does
DC stand for?
Student: It stands for deep current. No, wait, it's direct current.
Instructor: Yes, and what is direct current?
Student: That's when the flow of electrons switches directions every so often.
Instructor: Are you sure? Think about the name.
Student: Oh wait, that's not right. Direct current is when the electrons always flow in the same direction.
Instructor: Good. And what is it called when the flow changes direction?
Student: That's AC. And AC stands for alternating current. That's because the direction of the current alternates, or changes.
Instructor: You got it. Can you give an example of DC?
Unit 2
Exercise 3
Read out the directions. Allow some time for students to read the statements. Ask students to underline the key words that will help them do the task. Play the audio and have students mark their answers and then correct the false statements. Play the audio again if necessary. Check the answers as a class. Ask simple comprehension questions about the conversation.
For example: What topics does
Student 1 mix up. (Classical mechanics and quantum mechanics) What does quantum mechanics study? (Atomic and subatomic particles.)
Exercise 4
Student 1 (M): Do you want to review for the quiz tomorrow?
Student 2 (F): Sure, that's a good idea. It's about the different kinds of mechanics, right?
Student 1: Yeah, that's right. I 'm still a little confused about the different fields.
Student 2: I am, too. We definitely need to study. What's classical mechanics?
Student 1: Classical mechanics is the study of microscopic particles.
Student 2: No, you 're thinking of quantum mechanics.
Student 1: Oh, that s right. Quantum mechanics examines atomic and subatomic particles.
Student 2: There you go. Different sets of rules apply to tiny particles. So what is classical mechanics, then?
Student 1: Now I'm not sure. Is it the study of things you can see?
Student 2: Yeah, classical mechanics deals with the
movement of large things, like parts of machines.
Student 1: That makes sense. What should we cover next?
Student 2: Let 's go over quantum field theory.