内容正文:
The power of plants
6
Unit
P3
Developing ideas
What kinds of food can we get from wheat?
maltose
(麦芽糖/ˈmɔːltəʊz/)
dumplings
(饺子)
noodles
flower bun
gluten(面筋/ˈɡluːtn/)
What plants can you see in the pictures?
Rice
Wheat
Corn
How do you usually eat them?
Rice, wheat and corn are the world's top three food plants. People around the world eat them in different ways.
For example, rice noodles in East Asia, bread in Europe and tacos in the Americas.
There is a vlog about corn.
Let's listen to learn.
视频日志
1
Listen to the opening of the vlog and choose the main idea.
P101
a It explains the importance of corn in Mexico.
b It compares corn in different countries.
c It describes a famous Mexican corn dish.
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 size of it?! But it's not the biggest. The biggest one was nearly 40 centimeters long!
People started growing corn in Mexico about 9,000 years ago. Today, it's a big part of their cooking. There are over 600 corn dishes now!
Corn isn't just food. People use it in many ways. It's also part of Mexican culture. Let's go and see!
Read and choose.
What is the speaker talking about?
a It explains the importance of corn in Mexico.
b It compares corn in different countries.
c It describes a famous Mexican corn dish.
P102
Listening for numbers When listening for numbers, pay attention to words and expressions like nearly, about, over, and more/less than. They usually come before numbers.
Learning to learn
40
9,000
cooking
600
culture
2
Listen again and complete Jason's notes for the vlog.
(谷类植物的)穗
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 size of it?! But it's not the biggest. The biggest one was nearly 40 centimeters long!
People started growing corn in Mexico about 9,000 years ago. Today, it's a big part of their cooking. There are over 600 corn dishes now!
Corn isn't just food. People use it in many ways. It's also part of Mexican culture. Let's go and see!
Tapescript
What are the uses of corn?
3
Listen to the conversation and complete the sentences.
P103
seeds
chips
tea
health
dolls
(尤指谷类、果实和种子的)外壳,外皮
墨西哥煎玉米粉卷(以肉、豆等作馅)
例如;像
P103
Jason: Can I try the taco?
Jose: Sure.
Jason: Yum! Are tacos a traditional Mexican food?
Jose: They are! We make them from corn seeds.
Jason: Is this beef inside?
Jose: Yeah. You can put almost anything in a taco! Now try these chips. I made them with corn seeds, too.
Jason: Oh, what's that?
Jose: It's corn silk tea.
Jason: Corn silk?
Jose: It's the "hair" of corn. People in many countries make tea with it. It's good for your health. Try it!
Jason: It's sweet. Oh, what are these?
Silvia: They're traditional dolls. I made them with corn husks.
Jason: So colorful! May I take a video of them?
Silvia: Certainly!
Jason: Corn has so many uses. This is amazing. There's a saying in Mexico: without corn, there is no country. Do you agree?
Asking for and giving permission
Asking for permission helps us get something in a polite way. We can use the questions May I ...? or Could / Can I ...? People can reply Certainly, Sure or Go ahead.
Learning to learn
Talk about how people ask for and give permission.
Jason: Can I try the taco?
Jose: Sure.
Jason: Yum! Are tacos a traditional Mexican food?
Jose: They are! We make them from corn seeds.
Jason: Is this beef inside?
Jose: Yeah. You can put almost anything in a taco! Now try these chips. I made them with corn seeds, too.
Jason: Oh, what's that?
Jose: It's corn silk tea.
Jason: Corn silk?
Jose: It's the "hair" of corn. People in many countries make tea with it. It's good for your health. Try it!
Jason: It's sweet. Oh, what are these?
Silvia: They're traditional dolls. I made them with corn husks.
Jason: So colorful! May I take a video of them?
Silvia: Certainly!
Jason: Corn has so many uses. This is amazing. There's a saying in Mexico: without corn, there is no country. Do you agree?
How do people in the conversation ask for and give permission?
P103
ask for permission
give permission
More expressions about asking for and giving permission
Useful expressions:
I am hoping to know..., may I?
Could I know...?
What about...?
Yes, of course.
Have a conversation by using these phrases.
1. Can you tell what kinds of food we can get from wheat, rice and corn?
2. Can you tell the uses of a plant?
Choose a plant and make a poster about its uses.
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