incandescent

Making improvements to your lighting is one of the fastest ways to cut your ⁽⁷¹⁾________ bills. An average household uses 10 percent of ⁽⁷²⁾________ energy budget for lighting. Using new lighting technologies can ⁽⁷³⁾________ lighting energy use in your home ⁽⁷⁴⁾________ 50 percent to 75 percent. Advances in lighting controls offer further energy savings by reducing the ⁽⁷⁵⁾________ of time lights are on but not being used.

Compact Fluorescent Bulbs provide bright, warm light and use about 75 percent ⁽⁷⁶⁾________ energy than standard lighting, produce 75 percent less heat, and last up to 10 times longer.

Part 2: (2 points)

Read the following passage and choose the correct answer to each of the questions that follow by writing A, B, C, or D in Your answers box

Canning is a method of preserving food over extended periods of time. The process involves sealing food in containers and heating it in order to kill bacteria that could eventually cause spoilage. While most canned food is produced by commercial companies, some is done at home. Homegrown fruits and vegetables such as apples and tomatoes are the most popular foods to can. Even certain kinds of meats are suitable for canning. However, it is not advisable to heat products such as avocados because of the changes in taste and texture that occur. Other foods, including cucumbers and peppers, can be canned only if they are first pickled and then cooked at very low temperatures. Properly canned food can be saved for as long as three years. If not properly sealed, the food can be spoiled by the growth of organisms. In severe case, bacteria can cause a fatal form of poisoning called "botulism". For this reason, it is very important to check the seal of the jar or bottle regularly to make sure it has remained undisturbed.

81. According to the passage, what is needed to kill bacteria that spoil food?

A. An airtight seal B. Heat

C. A commercial company D. Homegrown produce

82. According to the passage, which of the following is NOT suitable for canning?

A. Apples B. Tomatoes C. Cucumbers D. Avocados

83. In line 9, the phrase "as long as" can best be replaced by which of the following?

A. up to B. a minimum of C. exactly D. while

84. It can be inferred from the passage that bacteria__________.

A. is rarely harmful B. develops very slowly

C. is one type of organism D. is a result of canning foods

85. According to the passage, botulism can be avoided by__________.

A. disturbing the container from time to time

B. properly sealing a jar or bottle

C. rehearing the canned food

D. promoting the growth of beneficial organisms

For indoor lighting, use energy efficient compact flourescent light bulbs (CFLs) in fixtures ⁽⁷⁷⁾________ your home to provide high-quality and high-efficiency lighting. Flourescent lamps are much more efficient than incandescent (standard) bulbs and last about 6 ⁽⁷⁸⁾________ 12 times longer. Today’s CFLs offer brightness and color rendition that is comparable to incandlescent bulbs. Although CFLs cost a bit more than incandescent bulbs initially, over their lifetime they are ⁽⁷⁹⁾________ because of how little electricity they use. CFL lighting fixtures now available are compatible with dimmers ⁽⁸⁰⁾________ operate like incandescent fixtures

71. A. gas	B. energy	C. water	D. paying
72. A. their	B. our	C. it	D. its
73. A. lower	B. increase	C. reduce	D. add
74. A. by	B. between	C. of	D. till
75. A. number	B. amount	C. figure	D. waste
76. A. more	B. little	C. less	D. few
77. A. all	B. through	C. around	D. throughout
78. A. onto	B. into	C. to	D. or
79. A. expensive	B. efficient	C. cheaper	D. smaller
84. A. and	B. to	C. that	D. which

Part 3: (2 points)

Fill in each blank with ONE suitable word. Write your answers in the numbered boxes provided below the passage

Like other ⁽⁸⁶⁾ __________ , English is always changing, but it changes very slowly. People invent new words, borrow words from other languages, and change the ⁽⁸⁷⁾ __________ of words as needed. For ⁽⁸⁸⁾ __________, the English word byte was ⁽⁸⁹⁾ __________ by computer specialists in 1959. The word tomato was ⁽⁹⁰⁾ __________ from Nahualt, an American Indian language ⁽⁹¹⁾ __________ in Mexico. The word meat once ⁽⁹²⁾ _________ to food in general. People learn English as well as ⁽⁹³⁾ _________ by listening, copying what they hear, and using ⁽⁹⁴⁾ _________. Most school children learn their ⁽⁹⁵⁾ _________ language easily- and sometimes other languages as well.

#Tiếng anh lớp 9

0

LQ

Lê Quỳnh Anh

24 tháng 2 2017

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident.

In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca -Cola, the world - famous carbonated soft drink.

Scientists have also made crucial discoveries by accident when they were conducting experiments. In 1928, Alexander Fleming discovered penicillin, an antibiotic, in this manner. He discovered some mold growing in a dish with some bacteria. He noticed that the bacteria seemed to be avoiding the mold. When he investigated further, he determined some of the many useful properties of penicillin, which has saved millions of lives over the past few decades. Likewise, in 1946, scientist Percy Spencer was conducting an experiment with microwaves. He had a candy bar in his pocket, and he noticed that it suddenly melted. He investigated and learned the reason why that had happened. Soon afterward, he built a device that could utilize microwaves to heat food. the microwave oven.

In paragraph 1, the word arduous is closest in meaning to _______.

A. constant

B. tough

C. specific

D. detailed

#Mẫu giáo

1

DH

Dương Hoàn Anh

24 tháng 2 2017

Chọn B

Trong đoạn 1, từ “arduous” gần nghĩa _______.

A. liên tục

B. khó khăn

C. cụ thể

D. chi tiết

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LQ

Lê Quỳnh Anh

30 tháng 8 2017

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the

correct answer to each of the questions.

A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident.

In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca – Cola, the world – famous carbonated soft drink.

Scientists have also made crucial discoveries by accident when they were conducting experiments. In 1928, Alexander Fleming discovered penicillin, an antibiotic, in this manner. He discovered some mold growing in a dish with some bacteria. He noticed that the bacteria seemed to be avoiding the mold. When he investigated further, he determined some of the many useful properties of penicillin, which has saved millions of lives over the past few decades. Likewise, in 1946, scientist Percy Spencer was conducting an experiment with microwaves. He had a candy bar in his pocket, and he noticed that it suddenly melted. He investigated and learned the reason why that had happened. Soon afterward, he built a device that could utilize microwaves to heat food. the microwave oven.

The author uses Alexander Fleming as an example of ________.

A. a person who made an accidental scientific discovery

B. one of the most famous inventors in history

C. someone who became a millionaire from his invention

D. a man who dedicated his life to medical science

#Mẫu giáo

1

DH

Dương Hoàn Anh

30 tháng 8 2017

Chọn A

Tác giả sử dụng Alexander Fleming làm ví dụ của ________.

A. một người đã thực hiện một khám phá khoa học tình cờ

B. một trong những nhà phát minh nổi tiếng nhất trong lịch sử

C. một người trở thành triệu phú từ phát minh của mình

D. một người đàn ông đã cống hiến cuộc đời mình cho khoa học y khoa

Dẫn chứng: Scientists have also made crucial discoveries by accident when they were conducting experiments.

Tạm dịch: Các nhà khoa học cũng đã có những khám phá quan trọng một cách tình cờ khi họ đang tiến hành thí nghiệm.

ð Đáp án A

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LQ

Lê Quỳnh Anh

25 tháng 12 2019

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the

correct answer to each of the questions.

A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident.

In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca – Cola, the world – famous carbonated soft drink.

Scientists have also made crucial discoveries by accident when they were conducting experiments. In 1928, Alexander Fleming discovered penicillin, an antibiotic, in this manner. He discovered some mold growing in a dish with some bacteria. He noticed that the bacteria seemed to be avoiding the mold. When he investigated further, he determined some of the many useful properties of penicillin, which has saved millions of lives over the past few decades. Likewise, in 1946, scientist Percy Spencer was conducting an experiment with microwaves. He had a candy bar in his pocket, and he noticed that it suddenly melted. He investigated and learned the reason why that had happened. Soon afterward, he built a device that could utilize microwaves to heat food. the microwave oven.

Which title best summarizes the main idea of the passage?

A. History's Most Important Inventions

B. Accidental Inventions and Discoveries

C. You Don't Always Get What You Want

D. How to Become a Great Inventor

#Mẫu giáo

1

DH

Dương Hoàn Anh

25 tháng 12 2019

Chọn B

Tiêu đề nào tóm tắt tốt nhất ý chính của đoạn văn?

A. Phát minh quan trọng nhất trong lịch sử

B. Phát minh và khám phá tình cờ

C. Bạn không luôn luôn có được những gì bạn muốn

D. Làm thế nào để trở thành một nhà phát minh vĩ đại

Dẫn chứng đoạn 1: A large number of inventions require years of arduous research and development before they are perfected...Yet some inventions have come about not through hard work but simply by accident.

Tạm dịch: Một số lượng lớn các phát minh đòi hỏi nhiều năm nghiên cứu và phát triển gian khổ trước khi chúng được hoàn thiện ... Tuy nhiên, một số phát minh đã xuất hiện không phải nhờ làm việc chăm chỉ mà chỉ đơn giản là tình cờ.

Đáp án B

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LQ

Lê Quỳnh Anh

15 tháng 2 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the

correct answer to each of the questions.

A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident.

In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca – Cola, the world – famous carbonated soft drink.

Scientists have also made crucial discoveries by accident when they were conducting experiments. In 1928, Alexander Fleming discovered penicillin, an antibiotic, in this manner. He discovered some mold growing in a dish with some bacteria. He noticed that the bacteria seemed to be avoiding the mold. When he investigated further, he determined some of the many useful properties of penicillin, which has saved millions of lives over the past few decades. Likewise, in 1946, scientist Percy Spencer was conducting an experiment with microwaves. He had a candy bar in his pocket, and he noticed that it suddenly melted. He investigated and learned the reason why that had happened. Soon afterward, he built a device that could utilize microwaves to heat food. the microwave oven.

Who was John Pemberton?

A. The person who made Teflon

B. The creator of Coca–Cola

C. The man who discovered penicillin

D. The inventor of the microwave

#Mẫu giáo

1

DH

Dương Hoàn Anh

15 tháng 2 2018

Chọn B

John Pemberton là ai?

A. Người làm Teflon

B. Người tạo ra Coca-Cola

C. Người phát hiện ra penicillin

D. Người phát minh lò vi sóng

Dẫn chứng: While he was not successful in that endeavor, he managed to invent Coca - Cola, the world - famous carbonated soft drink.

Tạm dịch: Trong khi anh ta không thành công trong nỗ lực đó, anh ta đã phát minh ra Coca - Cola, nước ngọt có ga nổi tiếng thế giới.

=> Đáp án B

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