In Britain, natural gas is the most popular fuel for heating homes, and for cooking. It is piped all over the country from the gas fields below the North sea. Natural gas is used chiefly as a direct source of energy, although it is also used in the chemical industry. At the moment, the supply is plentiful, but it will be running short by the end of the century, and it will run out during the 21st century unless new supplies are found. We could do without natural gas, as coal gas can be used as a substitute, and there should be enough coal to last for several centuries. However, it is a form of energy which is not only cheap, but also highly efficient.

Questions

1. Where does natural gas come from?

2. When will it run out?

3. Is it efficient?

4. What can be used as a substitute for natural gas?

COMBINE EACH PAIR OF SENTENCES INTO ONE , USING THE CONJUNCTIONS IN BREACKETS

1 you can have fish for dinner . you can have chicken for dinner (both .... and)

2 mai plays the giutar well . mai dances beautifully. ( not only .... but also)

3 nam's handsome . nam's intelligent . ( not only .... but also)

4 david doesn't play tennis . david doesn't play table- tennis . ( neither ..... nor)

5 chris didn't have time to take a holiday sheila didn't have time to take a holiday. ( neither ..... nor)

6 paul's at home . paul's at the gym . ( either ........ or)

7 she's at the office , she's at the airport . ( either ........ or)

8 hey came late . they left early . ( not only ..... but also)

9 you are not ready . she are not ready .. ( neither ........ or)

10 I'm not happy . she is not happy, either . ( neither ........ or)

11 she doesn't like the city and she doesn't like the country . ( neither ........ or)

12 I am not rick . I'm not poor , either . ( neither ........ or)

13 she wrote the text anh selected the illustrations . ( not only..... but..... as well)

14 there are two reasons for using bicycle in the city : they are clean and they are also easy to park . ( not only..... but..... as well)

15 there are some problems with the teacher and with the students themslve . ( not only..... but..... as well)

16 this room is clean . It also beautiful . ( not only..... but..... as well)

17 helen lost her passport at the airport . she also lost her wallet there . ( not only..... but..... as well)

18 jim is on a holiday and so is carol . ( not only..... but..... as well)

In Britain, natural gas is the most popular fuel for heating homes, and for cooking. It is piped all over the country from the gas fields below the North sea. Natural gas is used chiefly as a direct source of energy, although it is also used in the chemical industry. At the moment, the supply is plentiful, but it will be running short by the end of the century, and it will run out during the 21^st century unless new supplies are found. We could do without natural gas, as coal gas can be used as a substitute, and there should be enough coal to last for several centuries. However, it is a form of energy which is not only cheap, but also highly efficient.

1. What is natural gas used for?

à__________________________________________________________________

2. Where does it come from?

à__________________________________________________________________

3. What is gas used chiefly as? When will it run out?

à__________________________________________________________________

4. What can be used as a substitute for natural gas?

à__________________________________________________________________

5. Is natural gas expensive or cheap?

à__________________________________________________________________

Complete the conversations with less or not as . . . as and the words in parentheses. Do not use not unless it is included in the parentheses. Use than and the second as only where necessary.
1. Anita: The clothes in this store (1) aren’t as nice as (not be / nice) they
used to be. Look at this coat! It’s much (2) _______ (fashionable) the coat I bought here last year.

Jackie : Well, that’s true. It (3)_______ (not be / stylish), but it’s also (4) _______ (expensive).

2. Chris: Check out this new coffee machine! It looks great! Ours (5) _______ (not be / fancy) this new one.
Mike: Well, it’s definitely fancier than ours, but it (6) _______(not be / efficient). It (7) _______ (not make coffee / quickly), and the coffee (8) _______(not taste / good).

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.

We find that bright children are rarely held back by mixed-ability teaching. On the contrary, both their knowledge and experience are enriched. We feel that there are many disadvantages in streaming pupils. It does not take into account the fact that children develop at different rates. It can have a bad effect on both the bright and the not-so-bright child. After all, it can be quite discouraging to be at the bottom of the top grade!

Besides, it is rather unreal to grade people just according to their intellectual ability. This is only one aspect of their total personality. We are concerned to develop the abilities of all our pupils to the full, not just their academic ability. We also value personal qualities and social skills, and we find that mixed-ability teaching contributes to all these aspects of learning. In our classroom, we work in various ways. The pupils often work in groups; this gives them the opportunity to learn to co-operate, to share, and to develop leadership skills. They also learn how to cope with the personal problems as well as learning how to think, to make decisions, to analyze and evaluate, to communicate effectively. The pupils learn from each other as well as from the teachers. Sometimes the pupils work in pairs; sometimes the work on individual tasks and assignments, they can do this at their own speed. They also have some formal class teaching when this is appropriate. We encourage our pupils to use the library, and we teach them the skills they need in order to do this effectively. An advanced pupil can do advanced works; it does not matter what age the child is. We expect our pupils to do their best, not their least, and we give them every encouragement to attain this goal.

According to the passage, which of the following is NOT true?

A. Pupils cannot develop in the best way if they are streamed into classes of different intellectual abilities

B. There is no fixed method in teaching pupils to develop themselves to the full

C. It’s not good for a bright child to find out that he performs worst in a mixed-ability class

D. Development of pupils as individuals is not the aim of group work