一、听课本录音，补全短文
Audio script 1
Jason: Welcome to Amazing Plants. This is Jason. I'm at the Sweet Corn Festival in Mexico. Look at this ear of corn! Can you believe the 1. of it! But it's not the 2. . The biggest one is nearly 3. cm long! People started 4. corn in Mexico about 9,000 years ago. Today, it's a big part of their 5. . There are over 600 corn dishes now! Corn isn't just 6. . People even use it to make toys. It's also part of Mexican 7. . Let's go and see!
Audio script 2
Jason: Can I try the taco?
Jose: Sure.
Jason: Yum! Are tacos a 1. Mexican food?
Jose: They are! We make them from corn 2. . Now try these chips. We make them from seeds, too.
Jason: Oh, what's that?
Jose: It's corn silk 3. .
Jason: Corn silk?
Jose: It's the 4. "" of corn. People in many countries make tea with it. It's good for your health. Try it!
Jason: It's 5. . Oh, what are these?
Silvia: They're traditional dolls. We make them with corn 6. .
Jason: So colourful! May I take a video of them?
Silvia: Certainly!
Jason: Corn has so many uses. This is 7. . There's a saying in Mexico: without corn, there is no country. Do you agree?
二、请再次听课本录音并跟读，注意发音、语调和语言节奏感

Audio script 1
1. size 2. biggest 3. 40 4. growing
5. cooking 6. food 7. culture
Audio script 2
1. traditional 2. seeds 3. tea
4. hair 5. sweet 6. husks 7. amazing

一、听录音,补全对话。录音听两遍
Jason: Can I try this bowl?
Li: Sure.
Jason: Great! Is this bowl a traditional Chinese thing?
Li: It is! We make it from 1. bamboo.
Jason: Is this a bamboo cup?
Li: Yeah. You can drink tea with it. Now try this bamboo 2. . I make them with 3. bamboo, too.
Jason: Oh, what's that?
Li: It's bamboo tea.
Jason: Bamboo tea?
Li: It's made from bamboo 4. . People in many places drink it. It's cool and 5. . Try it!
Jason: It's fresh. Oh, what are these?
Wang: They're handmade 6. . I make them with thin bamboo 7. .
Jason: So beautiful! May I take a photo of them?
Wang: Certainly!

1. fresh
2. chopsticks
3. thick
4. leaves
5. healthy
6. baskets
7. sticks