Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that bestfits each of the numbered blanks from 31 to35.
In addition to the challenge to be excellent, American schools have been facing novel problems. They must (31)______ with an influx of immigrant children, many of whom speak little or no English. They must respond to demands that the curriculum reflect the various cultures of all children. Schools must make sure that students develop basic skills for the job market, and they must consider the needs of nontraditional students, such as teenage mothers.
Schools are (32)______ these problems in ways that reflect the diversity of the US educational system. They are hiring or training large numbers of teachers of English as a second language and, in some communities, setting up bilingual schools. They are opening up the traditional European-centered curriculum to embrace material from African, Asian, and other cultures.
Schools are also teaching cognitive skills to the (33)______ 40 percent of American students who do not go on to higher education. In the (34)______ of a recent report by the Commission on Achieving Necessary Skills, “A strong back, the willingness to work, and a high school diploma were once all that was necessary to (35)______ a start in America. They are no longer. A well- developed mind, a continued willingness to learn and the ability to put knowledge to work are the new keys to the future of our young people, the success of our business, and the economic well-being of the nation.”
Điền ô 31
A. do
B. stay
C. fight
D. cope
Giải bởi qa.haylamdo.com
Đáp án D
Cope with = deal with: giải quyết Do with: làm gì với
Fight with: cãi nhau với Stay with: ở lại với
They must (31)______ with an influx of immigrant children, many of whom speak little or no English.
[Họ phải giải quyết dòng trẻ nhập cư, nhiều trong số chúng nói rất ít hoặc không nói tiếng Anh.]
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Due to ever more spreading poaching, there ______ a dramatic decline in the number of elephants over the last decade
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. He's sometimes bad-tempered but he's a good fellow ______.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Communities in remote areas are extremely _____ to famine if crops fail
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
A large number of workmen ______ because of the economic recession
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
People don’t like the way he shows off, ______?
Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.
Thanh: “Lan’s the best singer in our school.” Nadia: “______”
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
As the old one, this new copier can perform its functions in half the time
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
Thanks to the efforts of environmentalists, people are becoming better aware of the problems of endangered species
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Do you remember ______ to help us when we were in difficulty?
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
He wasn't attending the lecture properly and missed most of ______.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
You can use my car ______ you drive carefully
Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.
Mai: “Do you want another serving of chicken soup?”
Scott: “______.”
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
I could hear voices but I couldn’t ______ what they were saying
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
These exercises look easy, but they are very relatively difficult for us
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 from 36 to 42
The ability to conduct electricity is one of the key properties of a metal. Other solid materials such as silicon can conduct electricity but only effectively at certain temperatures. Also, some substances such as salt (sodium chloride) can conduct when molten or when dissolved in water. The ability of metals to conduct electricity is due to how their atoms bond together. In order to bond together the metal atoms lose at least one of their outermost electrons. This leaves the metal atoms with a positive charge and they are now strictly ions. The lost electrons are free to move in what is known as a sea of electrons. Since the electrons are negatively charged they attract the ions and this is what keeps the structure together.
An electric current is a flow of charge and since the electrons in the sea of electrons are free to move they can be made to flow in one direction when a source of electrical energy such as a battery is connected to the metal. Hence we have an electric current flowing through the wire, and this is what makes metals such good conductors of electricity. The only other common solid conducting material that pencil users are likely to encounter is graphite (what the „lead’ of a pencil is made from). Graphite is a form of carbon and again the carbon atoms bond in such a way that there is a sea of electrons that can be made to flow as an electric current. Likewise, if we have an ionic substance like salt we can make the electrically charged ions flow to create a current but only when those ions are free to move, either when the substance is a liquid or dissolved in water. In its solid state an ionic substance like salt cannot conduct electricity as its charged ions cannot flow.
Electrical insulators are substances that cannot conduct electricity well either, because they contain no charged particles or any charged particles they might contain do not flow easily. Water itself is a poor conductor of electricity as it does not contain a significant amount of fully charged particles (the ends of a water molecule are partly charged but overall the molecule is neutral). However, most water we encounter does contain dissolved charged particles, so it will be more conductive than pure water. Many of the problems that occur when touching electrical devices with wet hands result from the ever-present salt that is left on our skin through perspiration and it dissolves in the water to make it more conductive.
By Helena Gillespie and Rob Gillespie. Science for Primary School Teachers. OUP
According to the passage, a metal can conduct electricity due to ______.
