step by step 第三册 lesson 114

（单词翻译）

Lesson 114 Part Ⅰ

Lesson 114

Part Ⅰ  Warming-up Exercises

Spot Dictation: Synthetics²

Nowadays we wear orlon ______that look like wool, dacron ______that resemble cotton,  and nylon _______that remind us of silk. _______night we snuggle under blankets _______comforting warmth does not owe _______to the fleece of a_______. Our shoes are soled with_____ that comes out of a_________ instead of from a plantation³._______ walk on nylon or acrilan _________that are startling in their  _______to wool. The chairs we _______on  are cushioned with  a ______foam,  covered with an imitation_______ fabric⁴ or leather.  The table________ only looks like wood; it _______really plastic. Our food is ______in transparent⁵ bags, instead of _______.

We are living in the _________of chemicals.  Sometimes it seems_________ everything from the frames of______ glasses to the fillings in_______ teeth is made of synthetics. _______ is the word commonly used______ describe man-made or artificial products.

_______development of synthetics is a ______natural thing. It is human______ to want something better. Better________ what,  you may ask? Better_______ the things we have,  is_______ answer.

Score: ______

Lesson 114 Part Ⅱ

Lesson 114

Part Ⅱ  The Story Of Silk

Exercises:

Ⅰ.

Ⅱ.Finally the secret was stolen. In the _____,_______learned about the ______and ______. They spent_______ and finally found a way to take some _______out of the country.  The________ always carried _______. One day they hid________ in the ______,  and  walked out of _______with them. It is said that the development of the silk industry in other countries came from those _________which the ________had carried out of _________.

Lesson 114 Part Ⅲ

Lesson 114

Part Ⅲ  Clothing

Exercises:

Outline

Ⅰ.Man's Basic Needs

A.____________________________________________________

B.____________________________________________________

C.____________________________________________________

Ⅱ.Purposes for Wearing  Clothing

A.____________________________________________________

B.____________________________________________________

C.____________________________________________________

D.               (Prehistoric man )                        

Ⅲ. Natural Materials

A. From plants___________________________________________

B. From  animals ________________________________________

Ⅳ.Synthetic¹ Fibers⁶

A.(First made in 1884)_____________________________________

B. Complete synthetic fibers_________________________________

C. Recent synthetic products_________________________________

Ⅴ.Superiority of Synthetic Fibers

______________________________________________________