1. Choose the right modal verb.
1.Olga has some free time. She help her mum now.
d) should
2. You go to the party. It’s very important.
c) must
3. I come in?
b) may
4. She have told me about it himself.
c) must
2. Choose the right preposition (предлог).
1. They are in Moscow now. Tomorrow they are leaving Warsaw.
b) for
2. They arrive __ the airport on time.
b) at
3. We were waiting __ you yesterday. Why didn’t you come?
a) for
4. The sunny weather will be all ___ the country.
d) over
5. The pupils came __ the classroom.
a) into
3. Choose the suitable word (условные предложения 1 и 2 типов).
1. Meggie ___ hover the sitting room if Nick moves the furniture.
a) will
2. If it rains tomorrow, I ___ have to water the vegetables.
b) won’t
3. If he had taken the bus, he ___ have arrived home on time.
c) would
4.They have missed the last bus, if they had hurried.
d) wouldn’t
Объяснение:
Tectonic depression, which is Lake Baikal, began to fill with water 20-25 million years old, and in its modern shape lake existed for several million years. The depth of the fracture of the crust, which reaches Lake Baikal is located 8.5 kilometers away. Much of the fault for millions of years filled with sediments.
Lake Baikal contains 20% of the world's fresh water. More than 330 rivers and streams fill up the cup of Baikal. The most high-water inflow - Selenga, which accounts for half of the volume of river water flowing into the lake. It flows out of Lake Baikal is the only river - the Angara. Unique cleaning mechanism created by nature over millions of years, making Baikal water oxygenated and unusually transparent.
In winter, the Baikal is completely covered with ice, except for a small area at the source of the Angara. The freezing of the lake begins in October with the northern part of the lake. At first the ice binds shallow bays, then the entire area, gradually moving from north to south. A strong wind prevents the formation of ice from time to time breaking it. Frozen into the ice fragments form a new scenic ridges. Yet by mid-January - early February winter takes its toll and the winter turns into Baikal ice fairy tale.
Beauty Baikal nature attracts tourists from all over the world - tourism and recreation on Lake Baikal is getting more popular. On the shore of the lake a lot of places, especially attractive for tourists. Many of these places revered by the local population since ancient times. It Olkhon Island, Cape Burkhan, aka Shaman, headlands Sagan Khushun and Khoboy, Sandy Bay, Chivyrkuisky Bay, Holy Nose Peninsula, the archipelago of islands Ushkany ... There are man-made attraction - the old Circum-Baikal Railway, has existed for over a hundred years.
Thanks to the exceptional qualities of the Baikal water, the lake is full of life from the surface layers down to the bottom. Lake Baikal is home to more than 2,600 species and varieties of animals and over 1,000 species of plant organisms. About 2/3 of plant and animal species living in the open Baikal are endemic, ie found only in Lake Baikal.
The lake has 58 species of fish. The most famous - cisco, whitefish, grayling, trout, sturgeon, golomyanka, goldilocks. Amateur summer fishing on Lake Baikal - is extremely exciting activity, but requires knowledge of local conditions.
Unfortunately, the nature of the South, and particularly the south-eastern coast of Lake Baikal significantly affected by anthropogenic impact. And it must be very careful with the fact that we managed to save. Do not hesitate - if you fall harmlessly to see Lake Baikal and you with respect and love will treat the Great Lakes, Lake Baikal will respond to you in return.