FRIEUR
Grade 7. Term 3.
Summative assessment for the 7th unit "Natural disasters
Reading
Read the text about tornadoes. Some parts of the text have been removed. Complete the text by
deciding which sentence (A-H) fits each gap (1-7). There is one sentence that you do not need.
The USA-tornado country
Do you know the American story and film The Wizard of Oz? It is about a girl from Kansas, called
Dorothy, who is caught by a tornado and is taken to a magical world
A tornado, or twister', is a strong, dangerous column of air that is in contact with the ground and a
cloud at the same time. Most tornadoes have wind speeds below 177 km/h. They travel for a few
kilometres and then disappear. They can be 3 km wide and they can stay on the ground for more
than 100 km. These twisters are the most dangerous.
Tornadoes can happen anywhere in the world, but they are very frequent in the United States.
There is tomado weather in all of the American states, but there is one area that has more tornadoes
than any other.
The area is flat and lies between two mountain ranges. Warm air from Mexico can therefore travel
north and meet cold air coming south from Canada.
Texas has the most tornadoes. Between 1950 and 2000, 5,500 tornadoes hit this US state.
However, the worst period of tornado weather of all didn't just affect Texas. The 3 and 4 April
1974 will always be remembered in American history, because in just 16 hours there were 148
tornadoes in 13 states. Some of them were huge and travelled for 60 km, 330 people were killed and
So many tornadoes in such a short time is a very rare
5,500 were injured across America.
occurrence, but scientists say that it will definitely happen again. Next time, though, they promise that
the USA will be better-prepared.
A. But some can have wind speeds of 480 km/h.
B. But in reality, tornadoes aren't quite so kind.
C. The tornado was gone 15 or 20 seconds later.
D. It is this mixture of warm, wet air and cold, dry air that causes tornadoes.
E. It is called Tornado Alley' and it covers most of Texas, Kansas and Nebraska.
F. It was the biggest and most dangerous tornado outbreak ever.
G. They can pick up houses, cars, animals and people, and drop them far away.
H. This is an average of 110 tornadoes every year.
bei
O
and you have decided
Помогите пожалуйста 15 мин остался
Приложения:
![](https://st.uroker.com/files/d0b/d0bc5ddfc9ac67c057c71b124054a9cd.png)
Ответы
Ответ дал:
4
Відповідь:
Пояснення:
1 B
2 A
3 D
4 E
5 F
6 H
7 G
ayana2010krg:
это правильно?
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