II. Read the following passage and fill in the gaps with one suitable word ( 5p) What is the truth about light wave theory? ……56……. many years, scientists were in disagreement. Newton hypothesized tha...

II. Read the following passage and fill in the gaps with one suitable word ( 5p) What is the truth about light wave theo...

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1 tháng 1 2020 lúc 17:47

Read the passage and fill each gap with one suitable word Christiaan Huygens spends Christmas day, in the Hague in 1656, contructing a model of a clock on a new principle. The principle ______ hes been observed by Galileo, traditionally as a result of watching a lamp swing to and fro in the cathedral when he is a student in Pisa. Galileo later proves experimentally that a swinging supspended object takes the ______ time to complete each swing regardless of how far it travels. This...

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Read the passage and fill each gap with one suitable word

Christiaan Huygens spends Christmas day, in the Hague in 1656, contructing a model of a clock on a new principle. The principle ______ hes been observed by Galileo, traditionally as a result of watching a lamp swing to and fro in the cathedral when he is a student in Pisa. Galileo later proves experimentally that a swinging supspended object takes the ______ time to complete each swing regardless of how far it travels.

This consistency prompts Galileo to suggest that a pendulum might bu useful in clock. But no one has been able to apply that insight, until Huygens______ that his model works.

A craftsman in the Hague makes the first full-scale clock on this principle for Huygens in 1657. But it is England______ the idea is taken up with the greatest enthusiasm.

By 1600 London clockmakers have already developed the characteristic shape which makes______ use of the new mechanism - that of the longcase clock, more affectionately known as the grandfather clock

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Lớp 9 Tiếng anh Luyện tập tổng hợp

Kfkfj

31 tháng 8 2017 lúc 18:31

Điền từ vào ô trống Manned space-craft travel at speeds of almost five miles a second. But space-craft are slow.....with the fastest traveler in the .....universe-light. Scientists calculate that light travels 186000 miles a second! Swift ......it is, light takes time to cross interstellar space. Light from Sirius, a neighboring star, travels for nine years to......us. Because of the time lights takes to travel the........of space, it is possible to see an event long........is has happened....

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Điền từ vào ô trống

Manned space-craft travel at speeds of almost five miles a second. But space-craft are slow.....with the fastest traveler in the .....universe-light. Scientists calculate that light travels 186000 miles a second!

Swift ......it is, light takes time to cross interstellar space. Light from Sirius, a neighboring star, travels for nine years to......us.

Because of the time lights takes to travel the........of space, it is possible to "see" an event long........is has happened. In AD 1054, Chinese astronauts recorded the...... of an object that .... up the night sky. They were seeing an exploding star. Yet scientists today calculate that the stars ........ more than four thousand years ago. ......... the Chinese observers, we too may "see" happening vast distances away and long before our own time.

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Lớp 9 Tiếng anh Luyện tập tổng hợp

Dũng Phạm

18 tháng 11 2019 lúc 18:32

Thomas Edison was born in Milan, Ohio,on 1847. His family moved to Port Huron, Michigan, when he was seven years old. Surprisingly, he attended school for only two months.His mother, a former teacher, taught him a few things, but Thomas was mostly self-educated. His natural curiosity led him to start experimenting at ayoung age. Thomas Edison lit up the world with his invention of the electric light. Although The electric light was the most useful, it was not his only invention. He also invented...

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Thomas Edison was born in Milan, Ohio,on 1847. His family moved to Port Huron, Michigan, when he was seven years old. Surprisingly, he attended school for only two months.His mother, a former teacher, taught him a few things, but Thomas was mostly self-educated. His natural curiosity led him to start experimenting at ayoung age.
Thomas Edison lit up the world with his invention of the electric light. Although The electric light was the most useful, it was not his only invention. He also invented the record player, the motion picture camera. and over 1,200 other things. About every two weeks he created something new.He worked 16 out of every 24 hours. Sometimes he worked so intensely that his wife had to remind him to sleep eat.
Thomas Edison died in 1931, in West Orange, New Jersey. He left numerous inventions that improved quality of life all over the world

1. When and where was Edison born?

2. How did Thomas Edison light up the world?

3. How often did Edison light up the world?

4. Was Edition mostly self-educated?

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Nguyễn Thị My

27 tháng 6 2019 lúc 7:49

Điền từ : NATURE’S LIGHT When you see a fire fly flitting through the air on a dark summer (33) _____, you may wonder (34) ______ the source of its light. This light (35) ______ from a mineral called phosphorus, which is found in small amounts in the (36) _____ of the firefly. Phosphorus is also found in the bodies of many (37) _______ of deep-sea fish. Sometimes...

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Điền từ :
NATURE’S LIGHT
When you see a fire fly flitting through the air on a dark summer (33) _____, you may wonder (34) ______ the source of its light. This light (35) ______ from a mineral called phosphorus, which is found in small amounts in the (36) _____ of the firefly. Phosphorus is also found in the bodies of many (37) _______ of deep-sea fish. Sometimes (38) ______ a large number of these fish congregate near the surface of the ocean, their bodies illuminate an area that can be (39) _____ for long distances.

Phosphorus is also found in many parts of our bodies (40) _______ is essential to human life. In modern times, many vital uses have been found (41) _____ this mineral. Large amounts of phosphorus are utilized in medicines, in agriculture, and in manufacturing.
Perhaps (42) ____ most generally familiar (43) _____ to find phosphorus is in the heads of matches. Because phosphorus burns violently (44) ______ low temperatures, the small amount of heat produced by the friction of ru
ing the head of a match (45) _____ a rough surface is sufficient to (46) ______ the phosphorus in the match head to burn. As the head of the match ignites, it lights the wood or paper that forms the (47) ____ of the match

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Uyên Ngọc

26 tháng 6 2019 lúc 14:28

NATURE’S LIGHT When you see a fire fly flitting through the air on a dark summer (33) _____, you may wonder (34) ______ the source of its light. This light (35) ______ from a mineral called phosphorus, which is found in small amounts in the (36) _____ of the firefly. Phosphorus is also found in the bodies of many (37) _______ of deep-sea fish. Sometimes (38) ______ a large number of these fish congregate near the surface of the ocean, their bodies illuminate an area that can be (39) _____ for l...

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NATURE’S LIGHT
When you see a fire fly flitting through the air on a dark summer (33) _____, you may wonder (34) ______ the source of its light. This light (35) ______ from a mineral called phosphorus, which is found in small amounts in the (36) _____ of the firefly. Phosphorus is also found in the bodies of many (37) _______ of deep-sea fish. Sometimes (38) ______ a large number of these fish congregate near the surface of the ocean, their bodies illuminate an area that can be (39) _____ for long distances.

Phosphorus is also found in many parts of our bodies (40) _______ is essential to human life. In modern times, many vital uses have been found (41) _____ this mineral. Large amounts of phosphorus are utilized in medicines, in agriculture, and in manufacturing.
Perhaps (42) ____ most generally familiar (43) _____ to find phosphorus is in the heads of matches. Because phosphorus burns violently (44) ______ low temperatures, the small amount of heat produced by the friction of ru
ing the head of a match (45) _____ a rough surface is sufficient to (46) ______ the phosphorus in the match head to burn. As the head of the match ignites, it lights the wood or paper that forms the (47) ____ of the match

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Dương

9 tháng 1 2019 lúc 21:04

1. Fill each blank with a suitable word to finish the passage. Sight is one of your five main senses. Your other four senses are touch,hearing,.........,and smell. You find out about the world around you by using your senses. They help you discover what kinds of foods you like to.........,what music you like to listen to, and what kinds of flowers are...........favorite. Your senses also help you to keep you safe. Your sense of sight allows you to........many thing. You can see th...

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1. Fill each blank with a suitable word to finish the passage.

Sight is one of your five main senses. Your other four senses are touch,hearing,.........,and smell. You find out about the world around you by using your senses. They help you discover what kinds of foods you like to.........,what music you like to listen to, and what kinds of flowers are...........favorite. Your senses also help you to keep you safe.

Your sense of sight allows you to........many thing. You can see things that are close up and you can see things that are........away. You can see many color and textures. You can see different.......and sizes.

It is important to protect your sense of sight. Very bright light can damage your eyes. Never look........at the sun or at other bright light. On sunny days,be sure to.........sunglasses. They protect your eyes from the bright sun.

If you are reading or doing homework, be sure there is......light. Reading in dim out low light can strain your eyes. Take break to give your eyes a rest. Always keep sharp object away.......your eyes. Accident with these object can damage your eyesight.

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Ngân Nhi Ngô

25 tháng 7 2018 lúc 11:34

Put one suitable word in each space Energy is one of the (1)______ that many people interested in. It is not an unfamiliar word. It is heard, said, discussed say after day. It is close to everyones (2)________life. You turn on the lamp and it is (3)______ that gives you light. You turn on a TV and it is energy that gives you pictures and sound. You ride a motorcycle and it is energy that gives you (4)______ You cook your meals and it is energy that gives you heat to boil rice The prob...

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Put one suitable word in each space

Energy is one of the (1)______ that many people interested in. It is not an unfamiliar word. It is heard, said, discussed say after day. It is close to everyone's (2)________life. You turn on the lamp and it is (3)______ that gives you light. You turn on a TV and it is energy that gives you pictures and sound. You ride a motorcycle and it is energy that gives you (4)______ You cook your meals and it is energy that gives you heat to boil rice

The problem is that the demand for energy is rising and that the price of energy is getting (5)______ and higher. The supply of energy on earth is limited. It can not provide us all forever. The (6)_____ of energy in the future is inevitable. Therefore, saving energy is a must if we want to (7)_________ to live in a safe and sound world. If we save energy, the (8)_______ will be less polluted and our health will be better and we will live a more meaningful life and more happily. Perhaps the best (9)________ to the problem of energy is a source of clean energy coming from the sun : solar energy. This kind of energy is easy available, free, and inexhaustible. Futhermore, it does not cause (10)______

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Lớp 9 Tiếng anh Luyện tập tổng hợp

hoài anh

15 tháng 2 2020 lúc 13:49

The large movement of earth under the water causes a very large and powerful tsunami. The tsunami was called the Asian Tsunami in most of the world. It was called the Boxing Day Tsunami in England, Australia, South Africa and Canada because it happened on the holiday they call Boxing Day. The tsunami caused a lot of damage to countries such as Philippines, Thailand, Indonesia and Sri Lanka. Waves as high as 30m killed many people and damaged or destroyed a lot of buildings and other properties....

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The large movement of earth under the water causes a very large and powerful tsunami. The tsunami was called the Asian Tsunami in most of the world. It was called the Boxing Day Tsunami in England, Australia, South Africa and Canada because it happened on the holiday they call Boxing Day. The tsunami caused a lot of damage to countries such as Philippines, Thailand, Indonesia and Sri Lanka.

Waves as high as 30m killed many people and damaged or destroyed a lot of buildings and other properties. Over 225,000 people died or were not found after the Tsunami, The wave traveled as far away as South Africa (8000km) where as many as 8 people died because of high water caused by the wave. Because of how much damage was caused and the number of people the earthquake affected, over 7 billion was donated to help the survivors and rebuild the areas damaged.

1. Why was the tsunami called the Boxing Day Tsunami in England?

A. Because it happened when people were boxing.

B. Because it happened when people were collecting boxes

C. Because it happened on Boxing Day

D. Because it destroyed a lot of boxes

2. How high were the waves?

A. Thirteen meters B. Eighteen meters

C. Thirty meters D. Two hundred and twenty-five meters

3. What were some people in South Africa killed by?

A. Earthquake B. High water C. High wind D. Property

4. What does the word "survivors' in line 11 mean?

A. houses that aren't destroyed

B. offices that are being built.

C. people that are dead

D. people that are left alive

5. Which of the following is NOT true?

A.Only in Asia the tsunami was called Asian Tsunami.

B. The tsunami caused a lot of damage to Indonesia.

C. Many people died because of the high waves

D. A lot of money was raised to help people

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Lớp 9 Tiếng anh Luyện tập tổng hợp

Lê Thị Vân Trang

12 tháng 8 2021 lúc 10:41

Each line in the following passage has a spare word; Underline that word and write it in the blanks given. BICYCLESThe bicycle is a cheap and clean way to for travel . The first Bicycle was made in about one hundred and fifty years ago. At First, bicycles were much expensive. Only rich people could buy one. These early time bicycles looked very different from the ones we have them today. Later, when bicycles became cheaper, many lot people bought one. People started riding bicycles to work and i...

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Each line in the following passage has a spare word; Underline that word and write it in the blanks given.

BICYCLES

The bicycle is a cheap and clean way to for travel . The first Bicycle was made in about one hundred and fifty years ago. At First, bicycles were much expensive. Only rich people could buy one. These early time bicycles looked very different from the ones we have them today. Later, when bicycles became cheaper, many lot people bought one. People started riding bicycles to work and in their with free time. Today, people use cars more than bicycles; cars are much more faster and you don’t get wet when it start rains! But some people still prefer to cycle to work . They say that there have are too many cars in town centers and you can't able find anywhere to park!

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