Ответ по предмету Химия: Составьте структурные формулы: а) 3,3,4-триметилпентанола-2; б) 3-метил-2-этилгептанола-1.

Предмет: Английский язык, автор: morozco

   Самостоятельная
работа для студентов 1 курса:

Выполнить упражнения на употребление
глагола to be:

Образуйте
вопросительные и отрицательные предложения:

1)    I am a teacher.

2)    You are in the classroom.

3)    We are all students.

4)    Some of the students are boys.

5)
Two and two are four.

6)
That answers are right.

7)
He is here.

8)    She is near the window.

9)    There are only two books in
the picture.

Вставьте
пропущенные слова:

1)    I _ a student.

2)    You_ a teacher.

3)    Mr.A _a man.

4)    Mary _ a girl.

5)    The man _ on the train.

6)    We _ students.

7)    What _you?

8)    Who _ you?

9)    Who _ he?

10)    What _Henry?

11)    _ I a teacher?

12)    _ she a woman?

Напишите
предложения в единственном числе:

1)    The books are on the table.

2)    The stars are in the sky.

3)    Are the men in the classroom?

4)    Are any trains in the
station?

5)    There are some books on the
table.

6)    These are flowers.

Употребление глагола to have.

1.
Поставьте предложения в вопросительной и отрицательной
форме:

1)    I have a book.

2)    You have an exercise book.

3)    Mr A has a book.

4)    The student on my left has a
book.

5)    He has   difficulty with spelling.

2.
Употребите глаголы, данные в скобках, в простом настоящем
времени.(Present Simple tense)

1)    Mr. John always (wear) a dark suit.

2)    Mr. John often (sit) in an
arm chair.

3)    He generally (read) in that
arm chair in the evening.

4)    My son usually (go) to bed
at 11o clock.

5)    The sun (shine) all day in
summer.

6)    They often (swim) in the
afternoon.

3.
Составьте вопросительные предложения (общий, специальный и
вопрос к подлежащему.) Всего 49 предложений.

              Mr. John
             teach(es) English


Mary                         knows
French


You                           speak(s) Spanish


They                           write(s) Polish


The little girls            work(s) late


I                                 go to
class


Paddy
do(es) much work

4.
Напишите следующие предложения в отрицательной и
вопросительной форме:

1)    He teaches English to the
students.

2)    He works at his desk.

3)    The students come to this
room.

4)    The students sit in this
room.

5)    The boys and girls stay with
their father at the seaside.

6)    The men drink tea and
coffee.

7)    The boys swim to the big
rock every day.

8)    The stars are long way from
the earth.

9)    The telephone is on the
desk.

10) The
windows are open.

5.
Ответьте на вопросы а) утвердительно, б) отрицательно, используя
краткую и полную форму.

1)    Does the man work in the field?

2)    Do the men work in the
field?

3)    Does she make good coffee?

4)    Do you make good coffee?

5)    Is the man very handsome?

6)    Is he reading a book now?

7)    Do they speak English?

8)    Can they speak English?

9)
Can she speak English?

Степени сравнения прилагательных.

1.
Образуйте сравнительную и превосходную степени
прилагательных:

Beautiful, comfortable, bright, correct,
friendly, difficult, heavy ,strong, tall, late, dark, young, warm, big, short,
new.

2.
Образуйте от прилагательных в скобках сравнительную или
превосходную степень:

1)    Summer is (warm) than
winter.

2)    Summer is the (warm) of the
four season.

3)    London is (big) than
Manchester.

4)    Manchester is (small) than
London.

5)    Winter in London is (foggy)
than in Paris.

6)    Frieda is(old)than Hans. She is the (old) in our family.

7)    I think I am the (bad)
dancer in the world.

2 года назад

Предмет: Английский язык, автор: zelda1998

Упражнение 2. Перефразируйте следующие предложения, употребляя сложное подлежащее

E.g. We heard that a car stopped outside the door.

A car was heard to stop outside the door.

.

1. We know Bernard Shaw to have been a very witty man.

2. People consider the climate there to be very healthful.

3. It was announced that the Chinese dancers were arriving next week.

4. It is expected that the performance will be a success.

5. It is said that the book is popular with both old and young.

6. It is believed that the poem was written by an unknown soldier.

7. It is supposed that the playwright is working at a new comedy.

8. It is reported that the flood has caused much damage to the crops.

9. It was supposed that the crops would be rich that year.

10. It has been found that this mineral water is very good for the liver.

11. Scientists consider that electricity exists throughout space.

12. It is said that the weather in Europe was exceedingly hot last summer.

13. It is said that this man was very handsome in his youth.

14. It was reported that five ships were missing after the battle.

2 года назад

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Составьте структурные формулы: а) 3,3,4-триметилпентанола-2; б) 3-метил-2-этилгептанола-1.

Ответы

Составьте структурные формулы:

а) 3,3,4-триметилпентанола-2;

б) 3-метил-2-этилгептанола-1.