3. A. generous B. decorate C. eruption D. slavery
VI.READING COMPREHENSION
A. Read the passage carefully, then decide whether the following statement are true or false : Scientists have known a lot about the earth. They understand how mountains are made and what a volcano is. The following example is about volcanic eruptions. Mt. Vesuvius in Italy and Mt. St. Helens in the USA are both famous mountains. They are both volcanoes. A volcano is a mountain that is open at the top. Smoke and hot air come out of the hole. Sometimes very hot rock also comes out of the mountain. That can make trouble for people nearby. This is what happened with Mt. Vesuvius and Mt. Helens. Hot rock poured out of Mt. Vesuvius and covered the town of Pompeii in 79 A.D. Everyone in the town was killed. The Mt. Helens volcano didn’t kill many people. There were no cities closes to the mountain. But the hot rock killed a large of the forest. And a lot of dirt fell on cities many miles away. Today there are still many questions for scientists who study the earth. They do not know when a volcano will send hot rock into the air. They still are not sure about the inside of the earth.---1. A volcano is a mountain that is open at the top.--- 2. Sometimes very hot rock also comes out of the mountain.--- 3. The cities many miles away from the volcanoes weren’t affected by the volcanic eruptions.--- 4. Scientists have known a lot about volcanoes.* Answer key : 1.T 2.T 3. F 4. FB. Fill in each gaps with the words given . There is ONE extra words you do not need to use. wave abrupt were like number The natural disasters called “Tidal waves” often occur suddenly. They are the result of an __(1)__ shift in the underwater movement of the Earth. In the late 2004, a series of tidal __(2)____ struck the seasides of Indonesia, Thailand and some other Asian countries. The famous resorts such as Phuket and Fifi __(3)__ completely destroyed. A large __(4)___ of people were kill. * Answer key : 1. abrupt 2.wave 3. were 4. number C. Read the passage, then choose the correct answer for each question: The Earth has volcanoes because it is hot inside. In some places it is hot enough to run solid rock. Geologists call the liquid rock magma. The magma rises towards the surface because it is less dense than the surrounding rock ( like a hot air balloon rising through the cooler air ). If the magma reaches the surface it is called lava and lava builds up to make a volcano.Volcanoes grow by intrusion and extrusion. An intrusion is magma that moves up into a volcano and then it stops. This way the volcano grows on the inside. An extrusion is an eruption. It can add layers of lava or ash. This way the volcano grows on the outside.• dense ( adj. ) : Chặt • intrusion ( n ) : Sự xâm nhập• extrusion ( n ) : Sự đẩy ra
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