Complete the sentences with the correct form of the verb given. 1. If he had been able to afford it, he
her a diamond ring (BUY)
2. If I had lost my way I
3.1f1
4. The teacher will be very angry if you
to the nearest police station. (GO)
a spider in my bathroom I would cry out loud. (SEE)
in your homework on time.
(not hand)
5. If it rains this afternoon, we
6.
out. (NOT GO)
the exam, she won't get the job she has applied for. (NOT
PASS)
7. My boss
angry if John comes to work late again. (BE)
8. If my girlfriend left me,
9.If she
miserable (FEEL)
the book carefully, she would have understood it. (READ)
10.Be careful! If you touch this wire you
a shock. (GET)
11. 1
that if I were you. (NOT SAY)
12. If you
to learn a lot, you would have taken this course. (WANT)
13. If she posted the letter now, they
it by Tuesday. (RECEIVE)
14.
about the dinner I would have come carlier. (KNOW)
15.If you
quickly you will catch the bus. (RUN)
16.1 would be very proud if she
sister. (BE)
17. The beach would be an ideal place for a picnic if it
crowded.
(NOT BE)
18. She could win the race if she
(TRY)
19.1
to your party if had had time, (COME)
20. Ifyou
the flowers, they won't survive. (NOT WATER)

*Courtesy

*Courtesy is a set of good manners which we use in everyday life. Good manners and rules of behavior at home, work, transport or other places, are very important in modern society. Even in ancient times people had to observe certain rules of conduct, which made their lives easier. A person is seen and evaluated through his behavior and communication with other people. If someone has a rich and beautiful inner world he or she demonstrates high level of social etiquette. Sometimes when we simply say “Hello!” meeting people and “Good Bye!” leaving, it shows our good manners. It is also necessary to use polite words in formal situations and when talking to strangers or elderly people. For men it is a good manner to let women go first. Most people hold doors for the next visitor in stores, restaurants and other public places. Young people ought to give place to older and disabled people in public transport. Pregnant women and little children also have a priority in such situations. Table manners are another important issue. While at formal dinners, people usually eat with fork and knife. Soon after sitting down at the table it is correct to put a napkin on your lap. Well-mannered people usually know the rules of table setting. When there is a variety of silverware in front of you, it’s a good idea to start with the knife, fork or spoon that is farthest from your plate. Not everyone knows the rules of courtesy. There are also many people who have bad manners. For example, they talk or laugh loudly in public places, which is not acceptable. They litter in the streets or cause inconvenience to other people. They stare at people they don’t know and never say “Sorry!” or “Thank you!” Such behavior should be avoided if we want to be a part of civilized society.

ОбъяснеПарниковый эффект - это термин, обозначающий роль атмосферы в потеплении.

поверхность земли. Атмосфера в основном прозрачна для входящих

коротковолновое солнечное излучение, которое нагревает поверхность Земли. Многое из этого

Радиация отражается от газов, таких как углекислый газ, метан, закись азота и озон в атмосфере. Этот нагревательный эффект лежит в основе

теории о глобальном потеплении.

Количество углекислого газа в атмосфере увеличивается

0,4 процента в год из-за использования таких видов топлива, как нефть, газ и

уголь. Вырубка тропических лесов также является фактором углеродный цикл. Другие газы, которые парниковому эффекту,

такие как метан и галогенуглеводороды, растут еще быстрее. Чистый эффект от этих повышений может стать глобальным повышением температуры, по оценкам

от 2 • до 6 • С (от 4 • до 11 "F) в течение следующих 100 лет. Потепление такого масштаба может изменить климат во всем мире, повлиять на урожайность сельскохозяйственных культур,

и привести к значительному повышению уровня моря. Если бы это случилось, миллионы людей сильно пострадали бы от наводнения.

1. Как греется поверхность Земли?

2. Какие газы отражают тепло обратно в атмосферу?

175

3. Почему количество углекислого газа в атмосфере увеличивается?

4. Что будет расти во всем мире в ближайшие 100ние: