Добавил:
Upload Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Smart Electronics new - 2.doc
Скачиваний:
12
Добавлен:
09.11.2019
Размер:
2.45 Mб
Скачать
  1. In Russian write a content-based summary of the text you have translated.

  2. Translate this summary into English.

  3. Share your ideas about themes mentioned in the texts above. Try to add more information on N-type and P-type semiconducting using professional magazines, the Internet etc. and tell your group mates.

    UNIT II

If

+

Past Simple

+

Future in the Past

I/we/you/they

he/she/it

introduced

/installed/lost

I/we/you/they

he/she/it

would

part/conclude

/note

THE P-N JUNCTION

Language Work (II) If-clause (If I determined …, it would occur … )

or

Future in the Past

+

if

+

Past Simple

I/we/you/they

he/she/it

would

part/conclude

/note

I/we/you/they

he/she/it

introduced

/installed/last

For example:

If I doped donor atoms at one end and acceptor atoms at the other end of a silicon crystal, it would have both P-type and N-type regions and there would be a junction between them.

If free electrons and holes moved in a controlled manner, they wouldn’t wander freely in the lattice.

I wish I determined…

wish + Past

For example:

I wish I measured these parameters more carefully.

(=I don’t measure them carefully)

I wish I could gain higher results. (I can’t)

Remember:

If I were/if I was

I wish it were/I wish it was

For example:

If I were you, I would correct this test. or If I was you, …

I wish it were possible.

(III) If-clause (If I had designed …, they would have set up … )

If

+

Past Perfect

+

Future Perfect in the Past

I/we/you/they

he/she/it

had introduced/ had installed/ had lost

I/we/you/they

he/she/it

would

have parted/ have concluded/

have noted

or

Future Perfect in the Past

+

if

+

Past Perfect

I/we/you/they

he/she/it

would

have parted/ have concluded/

have noted

I/we/you/they

he/she/it

had introduced/ had installed/ had lost

For example:

If I had determined a fault, I would have corrected it. (but I didn’t determine it)

If one region had lost a positive charge, the other region would have gained it. (but it didn’t lose a positive charge)

I wish I had designed…

wish + Past Perfect

For example:

I wish I had constructed my replica. I would have used it now. (but I didn’t construct it)

I wish I had corrected some measurements in my laboratory work. I would have obtained a higher result. (but I didn’t correct them)

Wish

1. Wish somebody something, but hope somebody do something.

For example:

I wish you an easy test.

I hope you get perfect results in your mathematical test.

2. Wish + Past (We regret something. The meaning is present.)

For example:

I wish you didn’t reach critical values. (you reach them)

Mike’s going to overcome all difficulties. I wish I was going too.

Wish + Past Perfect (we regret about something in the past)

For example:

I wish I had simulated this object with the help of a new computer. (I didn’t simulate)

I wish I hadn’t replaced parts in the machine. (I replaced)

3. I wish I could (do something) = I regret that I cannot do it.

For example:

I’m sorry I can’t help you. I wish I could calculate the resistance in this task. (but I can’t)

I wish I could have (done something) = I regret that I could not do it.

For example:

I heard you bought a new computer. I wish I could have gone to look at it. (but I couldn’t go)

4. I wish (somebody) would (do something)

(we would like something to happen)

For example:

I wish my computer would outstrip my friends’ ones.

I wish somebody would help me to measure current in my laboratory work.

Соседние файлы в предмете [НЕСОРТИРОВАННОЕ]