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- If people don’t stop dumping waste into the rivers, then pollution will increase.
- If both north and south polar ice caps melt, many huge landmasses will be submerged under a lot of water.
- If the air in the city is polluted, it can cause people’s respiratory problems.
- If smog is frequently formed in the city, it can cause difficulty in breathing, headache, and even lung cancer.
- If carbon monoxide concentrates in great amounts, it’ll be harmful.
- The climate will change if more trees are cut down for hardwood.
- If we don’t control pollution soon, it will be too late.
- If we don’t protect the frontier, we will suffer many losses from natural disasters.
Dựa vào từ cho sắn , viết câu hoàn chỉnh:
1, If people do not stop dumping waste into rivers, the pollution will increase.
2,If the polar ice caps melt , huge landmasses will be under water.
3, If the air in city is polluted, it can cause peole's respiratory problems.
4,If smog is frequently formed in the city, it will cause dificulty in breathing, headache and even lung cancer,
5, If carbon monoxide concentrates in great amounts , it will be harmful.
6, The climate will change if more trees are cut down for hardwood/.
7, If we do not control the pollution soon , it will be too late.
8, If we do not protect the frontier, we will suffer from many natural disasters.
Dựa vào từ cho sắn , viết câu hoàn chỉnh:
1, If/people/not/stop/dumping/waste/into/rivers/,/pollution/increase/.
=> If people don't stop dumping waste into rivers, water pollution will increase
2,If/polar/ice caps/melt/,/huge landmasses/ be/under/water.
=> If polar ice caps melt , the huge landmasses will be under the water
3,If the air,/in/city/be/polluted/,it/can/cause/peole's/respiratory/problems.
=> If the air in the city is polluted, it could be the cause of people's respiratory problems
4,If/smog/be/frequently/formed/in/city/,/it/cause/dificulty/in/breathing/headache/even/lung cancer,
=> If smoking is frequently formed in the city, it can cause difficulty in breathing problems, headaches and even lung cancer.
5, If/ carbon monoxide/concentrate/in/great/amounts/,/it/be/ harmful.
=> If the amount of carbon monoxide concentration in the great lungs is too large, it will be very harmful
6, The climate/change/if/more trees / be /cut/down/for/hardwood/.
=> The climate will be changed if more trees are cut down for hardwood
7, If/we/not/control/pollution/soon/,/it/be/too/late.
=> If we don't control pollution soon , it will be too late
8, If/we/not/protect/frontier/,/we/suffer/many/from/natural/disasters.
=> If we don't protect the frontier, we will suffer from many natural disasters
1, If the air in city is polluted, it can cause peole's respiratory problems.
2,,If smog is frequently formed in the city, it will cause dificulty in breathing, headache and even lung cancer
3, If carbon monoxide concentrates in great amounts , it will be harmful.
4, The climate will change if more trees are cut down for hardwood.
5, If we do not control the pollution soon , it will be too late.
6, If we do not protect the frontier, we will suffer from many natural disasters.
Đề bài; Hoàn chỉnh các câu sau
1. If the air / in / city / be / polluted / , / it / can / cause / people's / respiratory / problems
=> If the air in city were polluted, it could cause peole's respiratory problems
2. If / smog / be / frequently / formed / in / city / , / it / cause / difficulty / in / breathing / headache / even / lung caner
=> If smog were frequently formed in the city, it would cause difficulty in breathing, headache and even lung cancer
3. If / carbon monoxide / concentrate / in / great/ amounts / , / it / be / harmful
=> If carbon monoxide concentrated in great amounts, it would be harmful.
4. the climate / change / if / more trees / be / cut / down / for / hardwood
=> The climate would change if more trees were cut down for hardwood
5. If / we / not / control / pollution / soonn / , / it / be / too / late
=> If we don't control pollution soon, it will be too late
6. If / we / not / protect/ frontier / , / we / suffer / many / from / natural / disasters
=> If we don't protect the frontier forests, we will suffer from many natural disasters
XI. Joining two sentences, using the words in brackets.
1. We must conserve water. Otherwise we will face serious water shortages. (IF)
__________________If we don't conserve water, we will face serious water shortages ______________________________________________
2. The weather was awful. We didn’t enjoy our camping holiday. (BECAUSE OF)
____________________Because of the awful weather, we didn't enjoy our camping holiday____________________________________________
3. Plastic bags are non-biodegradable. They will remain in the environment for many years.
(SINCE)
______________________Plastic bags will remain in the environment for many years since they are non-biodegradable__________________________________________
4. Paul doesn’t think about the planet. He wastes so much water. (IF)
_______________________If Paul though about the planet, he wouldn't waste so much water_________________________________________
5. Water pollution happens. Many aquatic animals such as fish can die. (LEAD)
____________________Water pollution can lead to the death of many aquatic animals such as fish___________________________________________
6. The climate is changing. The earth is getting warmer. (BECAUSE)
_______________________Because the climate is changing, the earth is getting warmer _________________________________________
7. We should stop cutting down so many trees. We endanger our oxygen supply. (UNLESS)
_________________________Unless we stop cutting down so many trees, we will endanger our oxygen supply _______________________________________
8. People begin to recycle. They generate much less trash. (WHEN)
_____________________________When people begin to recycle, they generate much less trash___________________________________
9. We are damaging the ozone layer. The ozone layer is necessary for human existence.
(EVEN THOUGH)
___________________________Even though the ozone layer is necessary for human existence, we are damaging the ezone layer_____________________________________
10. Sue is suffering from skin cancer. She was exposed to radiation when she was young. (SO)
_______________________Sue was exposed to radiation when she was young so she is suffering from skin cancer_________________________________________
V. Choose the underlined word or phrase, A, B, c or D that needs correcting.
1. What will -> would happen if the Earth stopped moving?
2. One of the things all of us can do to protect and improve our environment is recycle -> recycling.
3. Humans can even die if they will drink -> drink contaminated water.
4. Long-term exposure to loud noise results -> results in permanent hearing loss.
5. They believe that water pollution is the large -> largest cause of death and disease in the world.
6. Is the recycling process in -> X itself damaging for the environment?
7. We won’t -> will save the environment if we stop using so much energy.
8. One in six species is at risk of extinction because -> because of climate change.
9. The amount of waste decreased -> would decrease if people started to buy reusable packages.
10. Contaminated water can cause of -> X many types of diarrheal diseases, including cholera.
Choose the best answer for each of the following sentences.
1. In my experiments, the liquid is cooled to 32oF. It always freezes.
A. If you cool the liquid to 32 degrees, it froze.
B. If you cooled the liquid to 32 degrees, it would freeze.
C. If you cool the liquid to 32 degrees, it will freeze.
D. If you had cooled the liquid to 32 degrees, it would have frozen.
2. It may rain this afternoon. I hope it doesn't because I don't want the match to be cancelled.
A. If it rains, the match is cancelled.
B. If it rains, the match will be cancelled.
C. If it rained, the match would be cancelled.
D. If it had rained, the match would have been cancelled.
3. Unfortunately, I don't know Philosophy, so I can't answer your question.
A. If I know Philosophy, I can answer your question.
B. If I know Philosophy, I will be able to answer your question.
C. If I knew Philosophy, I would be able to answer your question.
D. If I had known Philosophy, I would have been able to answer your question.
4. ______ there are some more ideas, we can end the meeting now.
A. If
B. As if
C. Unless
D. In case
5. If he ______ with us now, he _____ the beauty of nature of the National Park.
A. is / can enjoy
B. was / will enjoy
C. has been / would enjoy
D. were / could enjoy
6. If they had searched more carefully, they _____ the watch sooner.
A. will find
B. would find
C. found
D. would have found
7. If I had got up early, I _______ to have breakfast now.
A. have
B. had
C. would have
D. would have had
8. I cannot buy a new computer ____ I save enough money.
A. if
B. even if
C. unless
D. as if
9. Most people you meet will be polite to you ______ .
A. if you are polite to them
B. if you will be polite to them
C. unless you are polite to them
D. if you were polite to them
10. If you do so, it _____ the matter worse.
A. makes only
B. would only make
C. will only make
D. had only made
11. You ______ English fluently unless you practice it every day.
A. will speak
B. will not speak
C. can speak
D. did not speak
12. Hurry up ______ you will miss the bus and be late for school.
A. if
B. and
C. or
D. as
13. You will get a good seat if you ______ first.
A. come
B. came
C. have come
D. will come
14. Sam will not graduate _______ .
A. if he passed all the tests
B. if he does not pass all the tests
C. unless he passes all the tests
D. unless he had passed all the tests
Choose the appropriate options to complete the sentences.
1. Epilepsy ---- to be caused by poor air, which ---- to be carried by the veins to the brain.
is believed / thought
believes / is thought
was believed / was thought
is believing / is thinking
will be believed / has thought
2. The Wii, which is a video game console ---- by Nintendo ---- on November 19, 2006.
made / was released
is made / was released
was made / will release
makes / released
made / released
3. He ---- his first collection of poems in the early eighties and since that time he ---- by critics and public.
publishes / praised
published / has been praised
publishes / has praised
was published / was praised
will publish / will be praised
4. We can very confidently predict that if more of the forests ----, there ---- erosion
are cut / will be
cut / is
will cut / was
have been cut / used to be
was cut / will be
5. The poor bird ---- and all its efforts to escape from the trap ---- in vain.
has been captured / had been
captures / were
had been captured / was
will capture / are
had been captured / were
6. To have a clear image, stars ---- with a telescope.
must be observe
had better observe
should be observed
had to observe
could have been observed
7. It ---- that his music ---- thousands of people in the next years.
was thought / will influence
thinks / is influencing
is thought / will influence
will be thought / influences
thought / influenced
8. Archaeologists ---- today that the pyramid of an ancient Egyptian pharaoh ---- after being buried for generations.
announced / had rediscovered
announces / is rediscovered
are announced / was rediscovered
will announce / rediscovers
have announced / has been rediscovered
9. A Malawi woman who ---- with HIV five years ago ---- a baby now.
is facing / expects
is faced / was expected
was faced / is expecting
faces / expected
faced / will be expected
10. Anne Frank: The Diary of a Young Girl ---- an international bestseller that ---- into more than 50 languages.
is / has been translated
had been / is translated
is / has translated
will be / translated
was / will translate
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)………E…………
(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) …B…
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) ………A…………
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)
………G…………
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)
…………C………
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) …………F………
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.
Nguyễn Bích Ngọc ngô mai phương một tip nhỏ cho 2 e khi làm bài này đúng ra là nên đọc hết cả bài nhưng mà cj thấy bài này sử dụng từ vựng khá là đơn giản thôi nên chỉ cần đọc câu trước và câu phía sau câu chỗ cần điền các e có thể đoán ra phần nào cho chắc ăn các e có thể đọc lại đoạn đó sau khi chọn. < chỉ bài này thôi là đọc câu trước và câu sau là tìm dduocj thôi chứ cj ko chắc là bài nào cũng vậy nah >
1. Nếu các chỏm băng ở hai cực tan chảy, các tàu đổ bộ khổng lồ sẽ ở dưới nước
2. Nếu khói bụi thường xuyên hình thành trong thành phố, nó sẽ gây khó thở, đau đầu và thậm chí là ung thư phổi
3. Khí hậu sẽ thay đổi nếu càng nhiều cây bị chặt để lấy gỗ cứng