Teaching aims
（教学目的）
Knowledge aims:
1. Get students to learn the useful new words and expressions in this part:
patent, courtyard, walnut, distinguish, merciful, product, powder, perfume, stainless, cube, abrupt, convenient, caution, expectation, passive, merry, seize, criterion, valid, file, ripe, string, glue, freezing, greengrocer, identification, directory, dial, rainfall, innocent, lantern, bear, jam, forehead, dynamic, dot, tap, wire, straw, current, helicopter, triangle, stable, associate, practical, refrigerator, court, extension, version, competence, jeep, personnel
call up, now and then, set about, in case, beaten track, dive into, set out (to do), hang on, get through, ring back, ring off
2. Let students learn about inventors and inventions
Ability aims:
1. Develop students’ reading ability and let them learn different reading skills.
2. Enable students to talk about inventors and inventions
Emotional aims
1. Help the Ss know about inventors and inventions
2. Develop students’ sense of cooperative learning.
