Предмет: Геометрия, автор: marabelitsckay

В треугольнике ABC угол A равен 40°, AC = BC. Найдите угол C.

Ответы

Автор ответа: PllayeRr

Т.к. ВC=АС, то треугольник равнобедренный. ВA- основание. Углы при основании равнобедренного треугольника равны. Т.е. угол A=углуB=40, уголC=180°-2*40°=100°.

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SOME, ANY, NO exercises.

Exercise 1. Write in a, an, some or any.

1. Is there ____ milk in the crystal glass?

— No, there isn't _____ milk in the crystal glass

There's _____ juice in the crystal glass.

2. — Are there_____ sausages on the round plate?

-There aren't _____  sausages on the round plate.

There are _____ sandwiches on the round plate.

3. -Is there_____ glass on the wooden table?

— No, there isn't  _____ glass on the wooden  table.

There's _____ cup on the wooden table.

 

Exercise 2. Write in a, an, some, any.

There's ______angel on the top.

There are ______ornaments on the tree.

Are there ______lights on the tree?

There isn't ______Christmas tree in the house.

There's ______ jam on the wooden table.

Is there  ______bread in the basket?

There aren't  ______ vegetables in the fridge.

 

Exercise 3. Complete the sentences with some/any/no.

There is _______  tea in the crystal  glass, but it is very hot.

There is  _______  fresh milk in the fridge. I can't make porridge.

Are there ________  tasty apples in the bag?

There isn't _______  jam on the round plate.

There are _______  bananas on the wooden  table. They are yellow.

There is  ________ butter on the plate.

There is ________ cheese on the table, but there’re ____________ cheese sandwiches.

There isn't  _________ sausage on the table.

There are  ____________ potatoes in the bag.

There aren't ______________  bananas on the table, but there are ________  cucumbers there.

  

Exercise 4. Complete the sentences with the words

Cucumbers, tomatoes, cabbage, apples, carrots

There is some fresh ________ on the wooden table. There aren't any ___________ in the big bag, but there are some ________ there. There are no green ________ on the table, but there are some tasty red _________ there.

 

Exercise 5. Choose the correct item.

Is there some/any butter in the fridge?

There isn't any/no bread in the bag.

There are some/any cucumbers on the table.

There are any/no potatoes in the box.

There is/are some cheese on the shelf.

 

Exercise 6. Correct the sentences.

Are there any milk in the fridge?

There is no tomatoes in the salad.

Is there some sugar in this coffee?

There are some hamburger on the menu.

I'd like any potatoes, please.

There are some jam on the bread,

There's some fly in my soup.

We've got some banana.

There isn't some money in my pocket.

There is some posters on the wall.

Is there a salt in this soup?

 

Exercise 7.  Read the dialogue. Fill in the gaps with some, any, or a / an.

A.  I’d like ________ (1) vegetable soup with bread, please.

B.  I’m afraid we haven’t got________   (2) vegetable soup today. But we’ve got________ (3) milk soup.

A.  I don’t like milk soup. I’ll have________ (4) vegetable salad.

B.  Vegetable salad. Anything else, sir?

A.  Chicken with boiled potatoes.

B.  I’m sorry, but we haven’t got________ (5) chicken. But you can have ________ (6) steak. And there is spaghetti or chips instead of boiled potatoes.

A.  All right. ________ (7) steak and ________ (8) chips. Have you got  ________ (9) juice or is there any

water?

 B. Of course, sir. We’ve got ________ (10) orange and apple juice.

A.  Have you got________ (11) tomato juice?

B.  Yes, it’s Spanish.

A.  That’s fine. And cheese. I’d like ________ (12) cheese and ________ (13) fruit salad.

B,  Would you like ________ (14) ice-cream?

A, Yes, please. One ice-cream.

Упражнение 8.  Вставьте some, any, no

I was terrified that _______disaster was waiting for me.

They didn’t make_______mistakes.

I don’t think _______of us ought to wish the result to be different.

There were_______people in the room. It was empty.

Now that he lived in the country he seldom had _______visitors.

I have_______money left. I’ve bought a very expensive book.

When we were on holiday, we visited_______very interesting places.

I went out to buy_______milk but they didn’t have_______in the shop.

He is_______good as a pianist.

Производные SOME, ANY, NO. Упражнения.

 Exercise 9. Choose the correct answer. Write the story in your notebook.

 Liz is shopping. She wants to buy (1 — anything / some / any) new clothes. She is going to a New Year party tonight, but she has got (2 — anything / nobody / nothing) to wear. She wants to buy (3 — some / any / something) nice and (4 — no / some / any) new shoes but she can’t find (5 — something / anything / anybody) that she likes. She is also looking for a present. She wants to buy (6 — nothing / anybody / something) special for her friend.

 

Exercise 10. Complete the dialogue. Use the words from the box.

 something, anybody, nobody, somebody

Granny: Tom, Jane, Max! Can __________ (1) help me tidy up? __________ (2) answers. Where are they?

Max: Granny! There’s__________ (3) in this room. Are you talking to yourself?

Granny: No, I’m not talking to myself. I’m asking __________ (4) to help me do __________ (5) about the

Max: OK. Can __________  (6) help Granny about the house? Tom, Jane, where are you? Come here, I want you to help Granny.

 

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