Step3.Listening

T play the tape to the Ss, then try to ask them the below.

1) When was corn first brought to China?

2) Can you name some of the plants that were found in America?

Answers: 1)Corn was first brought to China about 450 years ago. 2) For example, beans, potatoes and other different fruits.

Step 4 Reading

T will give the Ss a few minutes to read it, then say something about the useful plant corn.

2) Ask the Ss to skim the text to find the general idea.

Answers:

The passage talks about the food in the world. It tells us how corn, tomatoes and other plants were discovered. It mainly tells us how corn was discovered and taken to the other parts of the world and the my of making corn food.

Step 4. Language study

Get the SB to look through the text and explain some language points and difficult sentences, if necessary the T can explain them again.

1) There was not enough room.

2) discovered the tomato

3) an open fire =a fire that bums in the open air

4) got angry =become angry

Step 5Workbook

Get the Ss to do Ex.2 &3 on Page 31 and Ex. 1 &2 on Page 94.

Step 6 Summary and further discussion

1. Retell the text.

2. Discussion:

1) Do you think the agriculture is important?

2) How can you make contributions to the agriculture?

3) What have you learnt from the text?

Step 7 Homework

1. Finish off the exercises in the Wb on Page 93 & 94.

2. Read the text aloud and recite the third paragraph of the text.