Synthetic fabrics
Synthetic fabrics do not come from plants or animals. They are made of chemicals, and the chemicals usually come from oil. There are many different synthetic fabrics. Nylon, polyester, Spandex, and Gore-Tex are some of the most important ones. They are light and strong. They can stretch and fit close to the body, so they are often used for sports clothes, for example, shirts and shorts for cyclists.
Wool
People have always worn clothes made of wool, especially in cold countries. The wool comes from sheep, alpacas, and other animals. There are different types of wool. In some wool, the threads are thin. This wool is used to make sweaters and scarves. Thicker threads are used to make blankets and carpets. We can make seven sweaters with the wool from one sheep.
Silk
The first silk was made in China about 5, 000 years ago. The secret of silk is a tiny animal, called a silkworm. The silkworm makes a thin thread and wraps the thread around its body. In two or three days, the silkworm can make about 900 meters of thread. Then people take the thread and wash it.
People weave the silkworm’s thread and make silk. Dresses made of silk move easily when the person walks. Silk clothes are comfortable because silk is very soft.
Cotton
Most shirts, t-shirts, jeans, socks, and underwear are made of cotton. Cotton clothes are good in hot countries because the air goes through the fabric and keeps you cool.
Cotton plants grow in fields. The white balls on the cotton plant are picked and washed, then they are made into cotton threads. Most of the word’s cotton is grown in China, India, and the USA.
Answer the questions.
1. What types of wool exist?
2. Why do we need wool?
3. Why is silk fabric so specific?
4. If we don’t have a silkworm can we substitute this animal for production silk or fabric close to this one.
5. What is the specific of cotton?
6. What is the process of making cotton?
7. Is it hard to make cotton? Why?
8. How is synthetic differ from other fabrics?
9. What fabric is better (natural or synthetic)? Why?
ОЧЕНЬ
1. Our medical college has a library where the students can get all the text books.
перевод: В нашем медицинском колледже есть библиотека, где студенты могут получить все учебники.
2. After blood transfusion the patient must remain in bed for 2-3 hours.
перевод: После переливания крови больной должен оставаться в постели в течение 2-3 часов.
3. After the experiment doctor Simpson began to use chloroform during his operations.
перевод: После эксперимента доктор Симпсон начал использовать хлороформ во время своих операций.
4. Transfusion of incompatible blood may produce a post transfusion shock.
перевод: Переливание несовместимой крови может вызвать посттрансфузионный шок.
5. His mother made him see a doctor.
перевод: Мама заставила его обратиться к врачу.
ответ:
1. i think it depends on the place. — я думаю, это зависит от места.
2. however, i believe that the risk of accidents can be reduced if people are trained well. — однако я считаю, что риск несчастных случаев может быть уменьшен, если люди хорошо обучены.
3. it says in the leaflet that most accidents take place at home and according to the newspaper headline the number of accidents at school is going up. — в листовке говорится, что большинство несчастных случаев происходят дома, и, согласно заголовку газеты, число несчастных случаев в школе растет.
4. people who don’t get good training are more likely to have accidents. we can see an example of this in the table of dangerous jobs. — люди, которые не получают хорошей подготовки, чаще от несчастных случаев. мы можем увидеть пример этого в таблице опасных работ.
5. for example, in the picture on the right the man has had a car crash, but perhaps it wasn’t his fault. — например, на картинке справа мужчина попал в автомобильную катастрофу, но, возможно, это не его вина.
6. in my opinion, the key to reducing the risk of accidents is to train people. — по моему мнению, ключом к снижению риска несчастных случаев является обучение людей.
объяснение: