1. sweet 2. salty 3. sour 4. crispy

Ask the students to make their own sentences with the words, preferably sentences that are meaningful. Move around the room. Collect a few students’ answers with mistakes on the blackboard. Along with the students help correct the mistakes.

Sample answers

4. Dictate the words below:

　metal, pie, flying disk, bakery, throw, special

Step Ⅱ Part 1

This activity focuses on vocabulary introduced in the unit.

Focus attention on the box. Invite a student to read the vocabulary words at the top.

You are asked to fill in the blanks with the words. They are four adjectives used to describe how food tastes. Note to use them to adjust the proper food.

Ask the students to fill in the blanks on their own.

Check the answers. Four students each read a sentence, filling in the blanks. The rest of the students check their work.

Answers

3. Ask some similar questions about the flying disk, or encourage the students to ask each other questions about it.

2. Ask the questions below again to review the article in Activity 3a:

　What was the article about?

　When was it invented?

　Who was it invented by?

　How was it invented?

　Step I Revision

1. Check the homework. Ask the students to hand in their homework.

2. A picture of a bicycle.

1. Real objects: an abacus, an umbrella, a binoculars, a camera

2. Teaching by writing an article.

1. Teaching by making sentences.

2. Write the article about the histories of the inventions.