In Britain, natural gas is the most popular fuel for heating homes, and for cooking. It is piped all over the country from the gas fields below the North sea. Natural gas is used chiefly as a direct s...

In Britain, natural gas is the most popular fuel for heating homes, and for cooking. It is piped all over the country from the gas fields below the North sea. Natural gas is used chiefly as a direct source of energy, although it is also used in the chemical industry. At the moment, the supply is plentiful, but it will be running short by the end of the century, and it will run out during the 21stcentury unless new supplies are found. We could do without natural gas, as coal gas can be used as a substitute, and there should be enough coal to last for several centuries. However, it is a form of energy which is not only cheap, but also highly efficient. 1. What is natural gas used for? à__________________________For heating homes, and for cooking. ________________________________________ 2. Where does it come from? à_______________________it comes from all over the country from the gas fields below the North sea.___________________________________________ 3. What is gas used chiefly as? When will it run out? à__________________Natural gas is used chiefly as a direct source of energy. It will run out during the 21stcentury________________________________________________ 4. What can be used as a substitute for natural gas? à____________________ coal gas can be used as a substitute for natural gas______________________________________________ 5. Is natural gas expensive or cheap? à________________It is cheap__________________________________________________Câu trả lời: In Britain, natural gas is the most popular fuel for heating homes, and for cooking. It is piped all over the country from the gas fields below the North sea. Natural gas is used chiefly as a direct source of energy, although it is also used in the chemical industry. At the moment, the supply is plentiful, but it will be running short by the end of the century, and it will run out during the 21stcentury unless new supplies are found. We could do without natural gas, as coal gas can be used as a substitute, and there should be enough coal to last for several centuries. However, it is a form of energy which is not only cheap, but also highly efficient. 1. What is natural gas used for? à__________________________For heating homes, and for cooking. ________________________________________ 2. Where does it come from? à_______________________it comes from all over the country from the gas fields below the North sea.___________________________________________ 3. What is gas used chiefly as? When will it run out? à__________________Natural gas is used chiefly as a direct source of energy. It will run out during the 21stcentury________________________________________________ 4. What can be used as a substitute for natural gas? à____________________ coal gas can be used as a substitute for natural gas______________________________________________ 5. Is natural gas expensive or cheap? à________________It is cheap__________________________________________________

In Britain, natural gas is the most popular fuel for heating homes, and for cooking. It is piped all over the country fr...

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Nam

27 tháng 2 2020 lúc 17:42

I. Give the correct from of the word given to complete the sentence. -Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be...

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I. Give the correct from of the word given to complete the sentence.

-Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ............. source of energy in the near future (alter) -It's a clean source of energy . Sailboats couldn't move without this ............. (powerful) -Limit car trips by relying on biking , walking public ............. (transport) -Energy is used to ............ a lot electrical thing (product ) -I don't think so . The solar penels are becoming ............ and easy to install (cheap)

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Lớp 8 Tiếng anh Luyện tập tổng hợp

Lê Trang

27 tháng 2 2020 lúc 20:23

I. Give the correct from of the word given to complete the sentence. -Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ....

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I. Give the correct from of the word given to complete the sentence.

-Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ............. source of energy in the near future (alter) -It's a clean source of energy . Sailboats couldn't move without this ............. (powerful) -Limit car trips by relying on biking , walking public ............. (transport) -Energy is used to ............ a lot electrical thing (product ) -I don't think so . The solar penels are becoming ............ and easy to install (cheap)

Help!!!

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Lớp 8 Tiếng anh Luyện tập tổng hợp

ngô mai phương

21 tháng 2 2020 lúc 20:44

giúp mik với T^T II. Read the following passage and choose the correct answer. The search for alternative sources of energy has led in various directions. Many communities are burning garbage and other biological waste products to produce electricity. Converting waste products to gases or oil is also an efficient way to dispose of waste. Experimental work is being done to derive synthetic fuels from coal, oil shale and coal tars. But to date, that process has proven expensive. Other experiments...

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giúp mik với T^T

II. Read the following passage and choose the correct answer.
The search for alternative sources of energy has led in various directions. Many
communities are burning garbage and other biological waste products to produce
electricity. Converting waste products to gases or oil is also an efficient way to dispose of
waste.
Experimental work is being done to derive synthetic fuels from coal, oil shale and coal tars.
But to date, that process has proven expensive. Other experiments are underway to
harness - power with giant windmills. Geothermal power, heat from the earth, is also being
tested.
Some experts expect utility companies to revive hydroelectric power derived from streams
and rivers. Fifty years ago hydroelectric power provided one third of the electricity used in
the United States, but today it supplies only four percent. The oceans are another potential
source of energy. Scientists are studying ways to convert the energy of ocean currents,
tides, and waves to electricity. Experiments are also underway to make use of the
temperature differences in ocean water to produce energy.
1. Which is the best title of the passage?
A. Efficient Ways of Disposing of Waste B. The Use of Water Productions for
Energy
C. The Search for Alternative Sources of Energy D. New Discoveries in Geothermal Power
2. In the second paragraph, the phrase “synthetic fuels” could best be replaced by which of
the following?
A. Biological fuels B. Low burning fuels C. Fast burning fuels D. Artificial
made fuels
3. Which of the following is NOT mentioned in the passage as an alternative source of
energy?
A. Burning of garbage B. Geothermal power C. Synthetic fuels
D. Electricity
4. According to the author, the impracticability of using coal, oil shale and coal tars as
sources of energy is due to ___________ .
A. their being time consuming B. their being money consuming

C. the scarcity of sources D. the lack of technology their being
money consuming
5. The word “it” in the last paragrph refers to ____.
A. alternative source B. the United States C. hydroelectric power D. Electricity
6. What can be inferred from the last paragraph?
A. Hydroelectric power will be the main source of energy
B. Synthetic fuels will be the principal source of alternative energy
C. Alternative energy will come from a variety of sources
D. All alterenative production of energy will be delivered from water.

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Lớp 8 Tiếng anh Luyện tập tổng hợp

Lê Trang

27 tháng 2 2020 lúc 20:46

I. Give the correct from of the word given to complete the sentence. -Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ....

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I. Give the correct from of the word given to complete the sentence.

-Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ............. source of energy in the near future (alter) -It's a clean source of energy . Sailboats couldn't move without this ............. (powerful) -Limit car trips by relying on biking , walking public ............. (transport) -Energy is used to ............ a lot electrical thing (product ) -I don't think so . The solar penels are becoming ............ and easy to install (cheap)

Ai làm đc giúp mình, mình tặng người đó 5Sp nha!

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Lớp 8 Tiếng anh Luyện tập tổng hợp

Đào Đào

30 tháng 7 2020 lúc 10:24

Everyone knows that honeybees make honey, but how do they actually do it? Honeybees live in colonies, which means that they live with lots of other bees. Beehives, nests made of wax, are the places where they live and stow their honey. Honeybees drink nectar from flowers or other sweet deposits from plants or trees. The honey made by these bees is used to supply the colony with food during the cold winter when there arc no flowers to drink from. Thus, these bees not only consume the nectar for...

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Everyone knows that honeybees make honey, but how do they actually do it? Honeybees live in colonies, which means that they live with lots of other bees. Beehives, nests made of wax, are the places where they live and stow their honey.

Honeybees drink nectar from flowers or other sweet deposits from plants or trees. The honey made by these bees is used to supply the colony with food during the cold winter when there arc no flowers to drink from. Thus, these bees not only consume the nectar for nourishment but also bring it home. They have a special organ called a honey stomach which is used to carry the food to their colony.

When honeybees come back home, they regurgitate what they have put in their honey stomachs. Other honeybees in the hive come along and help them. They repeatedly eat and regurgitate many times until the product becomes somewhat digested. Next, the bees move the syrupy product into open honeycomb cells. Then they beat their wings to fan it to prevent fermentation. The fanning makes the water evaporate so that the product gets thick enough. Now it cannot easily be attacked by bacteria. Finally, it can be called honey. After this process, honeybees seal up the honeycomb cells with wax until they are hungry.

The most impressive part of this process is how seamlessly a bee colony works together. In a colony, there are female worker bees, male drones, and one queen bee. Although there are both male and females in the hive, the majority of the work is done by females. The female worker bees are in charge of taking care of the hive and creating honey. When they are young, they take care of feeding the young bee larvae. When they are older, they go out and bring nectar back to the hive, where they begin making honey. The male drones are responsible for fertilizing the eggs, but require little energy as they spend their time waiting around the hive. The single queen bee is responsible for the colony's survival. She is the only female that can lay eggs. The wonderful substance called honey would not exist without the bees' teamwork.

1. What is the main topic of the passage?

A. The role of the female honeybee
B. Preventing fermentation in honey
C. Why honeybees build huge wax nests
D. How a honeybee colony works to make honey

2. What can be inferred from the passage about honey? A. It's not always the same color
B. It is only liked by a minority of people
C. Watery honey can go bad easily
D. It is created and cared for by the queen bee 3. What do honeybees do to prevent fermentation? A. Blow air on the honey by waving their wings
B. Overproduce honey using their legs
C. Feed the larvae the unfermented honey
D. Bring the honey to the honeycomb cells 4. According to the passage, which of the following is NOT true of honeybees? A. They work together in their colony.
B. They produce honey through a complex process
C. The queen bee is responsible for making honey
D The worker bees work both inside and outside of their hive.

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Lớp 8 Tiếng anh Luyện tập tổng hợp

Phương Lam

30 tháng 3 2017 lúc 19:13

Read the text and choose the best answer to fill in each gap. Have you ever followed instructions for knitting something or have you read a piece of music? If you have, you have behaved in a similar way(1)................ a computer. A computer obeys a program to carry out a particular task. Just (2)................. a knitting pattern is expressed in numbers and piece of music in lines and dots, so a computer program is (3)................. in the form of programming language. Like the...

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Read the text and choose the best answer to fill in each gap.

Have you ever followed instructions for knitting something or have you read a piece of music? If you have, you have behaved in a similar way(1)................ a computer. A computer obeys a program to carry out a particular task. Just (2)................. a knitting pattern is expressed in numbers and piece of music in lines and dots, so a computer program is (3)................. in the form of programming language. Like the English language (or any other language), there are (4).................... of grammar, and a program must be correct in every way.

There are hundreds of programming language, but only (5)............. are well-known and widely used. The most popular language which is used in offices(6)................Cobol. This language is used for printing payrolls and keeping records of goods. Engineers and scientists use Fortran (7)......................carry out calculations. (8)......................... neither of these two programs is very popular with people working on home computers. Basis is the most popular language for home computers, chiefly (9)...................it is easy to learn and use.

(10)................. these languages are useful for many purposes, it is time that a new simple program was devised. Such a program ought to be not only easy to use but also completely reliable.

1. A. to B. as C. so D. from

2. A. like B. by C. too D. as

3. A. expensive B. expresses C. expressed D. expressing

4. A. rules B. laws C. regulations D. principles

5. A. a little B. a few C. much D. a lot of

6. A. called B. calling C. is called D. is calling

7. A. so as for B. in order that C. so as that D. in order to

8. A. In addition B. Therefore C. Consequently D. However

9. A. because B. if C. because of D. unless

10. A. Even B. Despite C. Although D. In spite

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Lớp 8 Tiếng anh Luyện tập tổng hợp

Pikachu

14 tháng 1 2018 lúc 22:37

VI Read the following passage and answer each of the question below. ( 10 points ) We speak about the weather almost everyday. Before we begin doing something we want to know what kind of weather it is going to be. Why do we speak about the weather so often? The answer is not difficult. We want sunny weather when we go for a walk in the country, and on a rainy day we stay at home reading books, watching TV or doing other things. When we are at the seaside, windy...

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VI Read the following passage and answer each of the question below. ( 10 points )

We speak about the weather almost everyday. Before we begin doing something we want to know what kind of weather it is going to be.

Why do we speak about the weather so often? The answer is not difficult. We want sunny weather when we go for a walk in the country, and on a rainy day we stay at home reading books, watching TV or doing other things.

When we are at the seaside, windy weather is not pleasant . It is difficult to swim when the wind blows. And the wind can change good weather into bad one. The sun will stop shinning, and the rain may come.

And is there anything which we can do and must do in any weather? Yes, of coure there is. As English people say*rain or shine we must go to school.*.School is good in any weather, isn’t it?

It is obviously important for a farmer, a fisherman, an airplanr pilot, and a hip’s captain to know what the weather will be like. Unless they know what weather to expect , they cannot make their plans.

1 How often do we speak about the weather?

2 What do we usually do on a rainy day?

3 What is wrong with us when we are at the seasidde on a windy day?

4 According to the writer, what thing can we do and must we do in any weather?

5 Why is it important for us to know what kind of weather it is going to be?

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Lớp 8 Tiếng anh Luyện tập tổng hợp

Nguyễn Thùy Linh

4 tháng 8 2017 lúc 21:10

You may know that Asian,Middle Eastern and Mediterranean cultures have(1.TRADITION)...used garlic in their dishes.What you may not know is that garlic is also thought of as a(2.VALUE)...medicine by many ancient civilizations.Today,(3.PROFESSION)...in the field of nurtrition have come up with new information which is indeed quiet(4.SURPRISE)....Apparently,not only is garlic good for you but it also helps overcome various(5.ILL)....The man(6.ADVANTAGE)...to eating parsley,which is a natural deodor...

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You may know that Asian,Middle Eastern and Mediterranean cultures have(1.TRADITION)...used garlic in their dishes.What you may not know is that garlic is also thought of as a(2.VALUE)...medicine by many ancient civilizations.Today,(3.PROFESSION)...in the field of nurtrition have come up with new information which is indeed quiet(4.SURPRISE)....Apparently,not only is garlic good for you but it also helps overcome various(5.ILL)....The man(6.ADVANTAGE)...to eating parsley,which is a natural deodorizer,also helps(8.MINIUM)...the smell.Thus,it's time we took the benefits of garlic(9.SERIOUS)....Why not add to some of your(10.FAVOUR)...dishes.

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Lớp 8 Tiếng anh Luyện tập tổng hợp

ngô mai phương

21 tháng 2 2020 lúc 20:58

IV. In the following text, six sentences or parts of sentences have been removed. Above the extract you will find the six removed sentences PLUS one sentence which doesn't fit. Choose from the sentences (A-G) the one which fits each gap (1-6). Remember, there is one extra sentence you do not need to use. Write the correct letter in the box. Choose from the following sentences to fill the spaces in the text. There is ONE extra. A. Using a microwave for cooking a large food mass is difficult d...

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IV. In the following text, six sentences or parts of sentences have been removed. Above
the extract you will find the six removed sentences PLUS one sentence which doesn't fit.
Choose from the sentences (A-G) the one which fits each gap (1-6). Remember, there is
one extra sentence you do not need to use. Write the correct letter in the box.
Choose from the following sentences to fill the spaces in the text. There is ONE extra.
A. Using a microwave for cooking a large food mass is difficult due to limited penetration of
microwaves.
B. This can be overcome by leaving the food to stand for a few minutes when cooking is
completed.

C. It is advised that the water should be poured slowly into another container that already
contains the powder.
D. In this way, buying a microwave oven with a turntable ensure the food is cooked
throughout.
E. Conversely the microwaves do not heat glass, ceramic and plastic containers.
F. If the microwaves are not absorbed inside the oven, the oven can be damaged by
electrical arcs and overheating of the microwave source.
G. When water in that state is disturbed, it can suddenly and unexpectedly boil violently.
MICROWAVING
Microwaving is a method of cooking where food is bombarded by microwaves, usually
within an appliance called a microwave oven which excite the water, fat and sugar
molecules, thereby heating (cooking) both the outside and center of the food at the same
time. (1)…………………
(A common myth is that a microwave oven cooks from the center of the food outward. This
appears to happen because heat generated at the surface escapes more readily from the
surface of the food into the surrounding air.) One advantage of microwaving is that small
amounts of food can be heated very quickly, making it useful for reheating leftovers.
The disadvantage is that food which is microwaved does not undergo some of the chemical
reactions, such as browning, which makes the food visually attractive. Primitive microwave
ovens often do not cook evenly, leading to a concern that bacteria easily killed by more
traditional cooking methods may survive the quick cooking time in "cold spots", though the
food item as a whole is cooked to a safe average temperature. (2) ……
Some high-end microwave ovens are combined with a convection oven which basically
cook the food using microwave and hot air simultaneously to achieve both the fast cooking
time and browning effect.
(3) …………………
However microwave ovens are used in some fast food chains and special microwave bags
are available for cooking fowl or large joints of meat.
Professional chefs generally recommend using microwaves for a limited set of tasks,
including: melting fats (such as butter) and chocolate, cooking grains like oatmeal and grits,
cooking rice, thawing frozen meats and vegetables before cooking by other methods and
quickly reheating already-cooked foods.
Using a microwave to boil water is potentially dangerous, due to superheating. In a
microwave, water can be raised quickly to a temperature above the boiling point before
major bubbles form, especially if it is purified and in a very clean glass vessel. (4)
…………………
This effect is rare, even for scientists who try to deliberately recreate it, and any seed
whatsoever for boiling is likely to prevent the problem. Boiling water with, for instance, a
teabag already in it will prevent any dangers by providing a seed, as will using a mug that is
not perfectly clean.

The risk greatly increases when water has already been boiled once in the same container.
This situation can occur if the user of the oven boiled the water once, forgot about it, then
came back later to boil it again. The first time the water boils, the seed bubbles
(microscopic bubbles of air around which larger steam bubbles grow) are used up and
largely eliminated from the water as it cools down. When the water is heated again, the lack
of seed bubbles causes superheating, and a risk of a steam explosion when the water's
surface is disturbed.
Placing something in the water before heating can mostly alleviate this risk. If you are
planning to mix something with the water, say tea or hot chocolate, adding it before heating
will insure that the water boils. Otherwise, placing a wood object, for instance a chopstick,
in the water before heating will also work.
Care should be taken when removing heated water from a microwave. Make sure that the
hands are protected from possible liquid boil-over, place the container on a level, heat-
proof surface and stir liquid with a warm spoon. Also, never add powdered substances
(such as instant coffee or cocoa mix) to the container taken from the microwave, due to the
addition of all those seed bubbles and the potential for violent, spontaneous boiling. (5)
…………………
Metal objects, such as metal utensils, in a microwave oven can lead to dangerous situations.
Metals do not absorb microwaves effectively. Instead, metals reflect microwaves, thereby
preventing the latter from reaching the food. (6) …………………
Thin metal layers, such as metal foil and mugs with metal trim can melt or burn due to the
strong electrical currents that are generated in metal objects. However, small solid metal
objects, such as spoons, in combination with a large amount of absorbing food or liquid,
normally do not lead to problems.
This article is licensed under the GNU Free Documentation License. It uses material from the
Original Wikipedia article.

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Lớp 8 Tiếng anh Luyện tập tổng hợp

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