ответ:
answer
объяснение:
task 6.
1. plastics have now invaded all branches of industry, agriculture, household needs, medicine and even art. plastics are used in building industry, some of them are extensively used for finishing the interior of buildings.
2. the advantages of the plastics materials include:
a) the ease of fabrication and adaptability to mass production methods at low unit cost.
b) resistance to corrosion.
c) plastics are good thermal and electric insulators, all having dielectric strength.
d) plastics can be easily combined with other materials like wood, fibers, paper and combine light weight with good strength аз wall. the highest strength is obtained with glass fibre and this reinforcement is now used to a considerable extent.
3. yes, it does. it is resistant to corrosion.
task 7.
1. one of the advantages of plastic is its lightweight and corrosion resistance.
2. plastics have plenty of valuable properties.
3. they can use plastics for construction works.
Поделитесь своими знаниями, ответьте на вопрос:
1 упражнение
Do you learn new words in each lesson?Does she usually sit at the third desk?Do you read many books every yearDo they go to the pool every weekend?2 упражение
We don`t watch television every day.I don`t hear you well. It doesn`t rain very much in summer.Mr Johnson doesn`t always eat at that cafe. I don`t see any students in that room.They don`t like milk for lunch.He doesn`t have money for a new car.вот тебе на заметочку:
do don`t (do not) используетьс с I, you, we, they.
does doesn`t (does not) используетьс с he, she, it.
удачки ;)