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2 năm trước
-103 -57: [-2. (2x –1)2–(-9)^0] = -106
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II)-Complete each sentences with the correct word from the box. drought flood hurricane landslide tornado 1. When there is a ___________, a lot of water covers an area where there usually isn’t water. 2. A ___________ refers to a long time without rain. 3. When there is a ______________, a lot of rocks and earth fall down a hill. 4. A____________ is a storm with a lot of wind that moves over water. 5. A____________ is a storm in which the air moves very quickly in a circle. III)-Fill in each of the numbered blank in the following passage, using the appropriate words or phrases given in the box. a because of blown causes normal dry suffer irrigated wells drops Drought is an condition that results when the average rainfall for a fertile area (1)____________ far below the normal amount for (2)___________ long period of time. In areas that are not (3)_________, the lack of rain (4)_________ farm crops to wither and die. Higher than (5)___________ temperatures usually accompany periods of droughts. The soil of a drought area becomes (6)__________ and crumbles. Often the rich topsoil is (7)____________ away by the hot, dry winds. Streams, ponds, and (8)_________ often dry up during a drought, and animals (9)____________ and may even die (10)_______________ the lack of water. IV)-Use the verbs in the box in the correct form to complete the sentences. bury evacuate rage take recover scatter provide suffer 1. The government _____________ health and other services to the affected regions. 2. Action were _____________ to limit the effects of the floods in Quang Ninh. 3. The Red Cross helped homeless families to ____________ from the disaster through the project. 4. The majority of concerned areas have ___________ from cholera epidemics after the floods and landslides in Central America. 5. Early September, mudslides caused by heavy rains _____________ an entire village of 480 inhabitants. 6. Thousands of villagers ____________ from flood-prone areas after the warnings from the weather bureau. 7. Tiny particles of dust, smoke, salt or pollution droplets that ___________ through the air to cause haze. 8. The fires ____________ for more than a week in the southern region of Chile, which has been hit by a severe drought.

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