Be a 3. a) Complete the sentences from the text.
a) If you
a rainbow in the morning, there
storm.
b) If clocks and watches
louder, the weather
very wet.
.
c) If smoke from the chimney
up, the weather
clear.
d) The weather
be windy if an old cat
running
and playing.
e) When a dog
come very soon.
grass, rain come very soon
1) Mr. Jonhson:Chinese, a brllliant, young,tall, teacher
Jossie : American, a clever, short, old, driver
Pam Dolly: Russian, a 30 years old ,funny, businesswoman
Khristian: English, a teenager, tall, handsome, actor
Dorothy: French, a young, short, pretty, waiter
2)Описание предмета: boring, tiring, interesting, annoying, amazing, attractive, scary
Описание чувств: bored, tired, interested, annoyed, amazed, attracted, scared
3) 1)boring
2)interesting
3)tired
4)amazing
5)dissapointing
4) 1) admires
2)pay a lot of attention
3)determined
4)plump
5)design
5) 1)back
2)up
3)away
Объяснение:
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2. There are 8 columns in the periodic table. In each column, elements are arranged by the same properties, such as the same orbital arrangement of electrons.
3. Mendeleev predicted properties of yet undiscovered (missing) elements and left empty spaces for them in the table.
4. There are natural groupings between the elements that are closely related to each other.
5. In order to understand better these natural groupings, chemists have tried to fit the elements into a single plan.
6. John Ncwlands made one of the first attempts to fit the relationships among the elements by suggesting the Law of Octaves.