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 35 to 42.
Plants and animals will find it difficult to escape from or adjust to the effects of global wanning. Scientists have already observed shifts in the lifecycles of many plants and animals, such as flowers blooming earlier and birds hatching earlier in the spring. Many species have begun shifting where they live or their annual migration patterns due to warmer temperatures.
With further warming, animals will tend to migrate towards the poles and up mountainsides towards higher elevations. Plants will also attempt to shift their ranges, seeking new areas as old habitats grow too warm. In many places, however, human development will prevent these shifts. Species that find cities or farmland blocking their way north or south may become extinct. Species living in unique ecosystems, such as those found in polar and mountaintop regions, are especially at risk because migration to new habitats is not possible. For example, polar bears and marine mammals in the Arctic are already threatened by dwindling sea ice but have nowhere farther north to go.
Projecting species extinction due to global warming is extremely difficult. Some scientists have estimated that 20 to 50 percent of species could be committed to extinction with 2 to 3 Celsius degrees of further warming. The rate of warming, not just the magnitude, is extremely important for plants and animals. Some species and even entire ecosystems, such as certain types of forest, may not be able to adjust quickly enough and may disappear.
Ocean ecosystems, especially fragile ones like coral reefs, will also be affected by global warming. Warmer ocean temperatures can cause coral to “bleach”, a state which if prolonged will lead to the death of the coral. Scientists estimate that even 1 Celsius degree of additional warming could lead to widespread bleaching and death of coral reefs around the world. Also, increasing carbon dioxide in the atmosphere enters the ocean and increases the acidity of ocean waters. This acidification further stresses ocean ecosystems.
(From "Global Warming" by Michael Mastrandrea and Stephen H, Schneider)
Scientists have observed that warmer temperatures in the spring cause flowers to ________
A. bloom earlier
B. lose color
C. die instantly
D. become lighter
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Đáp án A
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
After six months of convalescence in a nursing home, Tim is finally on the _____________
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.
The measures (A) have contributed to the effort to preserve biodiversity and (B) put an end to the (C) illegally use and trafficking of wildlife (D) across the country.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The Foreign Ministries of Vietnam and Mexico agreed _____________ measures to boost the bilateral cooperation between the two nations.
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The more _____________ you look, the better you will feel.
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Police have not revealed the _____________ details of the case.
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You look exhausted. You _____________ in the garden all day
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.
The maps, together with a statement (A) asking for (B) approval for the 1 /5000 planning of Thu Thiem New Urban Area, (C) was submitted to the central Government (D) at that time
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.
The music video, titled “Run now”, (A) was uploaded (B) in the world's (C) biggest video-sharing site at 12:00 am, (D) and quickly fielded one million views at 12:18 am
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 best fits each of the numbered blanks from 23 to 27.
You may have heard that tomatoes and processed tomato product like tomato sauce and canned tomatoes protect (23) _____________ some types of cancer. The cancer-preventing properties of tomato products have been (24) to lycopene. It is a bright red pigment found in tomatoes and other red fruits and is the cause of their red color. Unlike other fruits and vegetables, where nutritional content such as vitamin C is diminished upon cooking, processing of tomatoes increases the concentration of lycopene. Lycopene in tomato paste is four times (25) _____________ in fresh tomatoes.
This is because lycopene is insoluble in water and is tightly bound to vegetable fiber. Thus, (26) _____________ tomato products such as pasteurized tomato juice, so up, sauce, and ketchup contain the highest concentrations of lycopene. Cooking and crushing tomatoes as in the canning process and serving in oil-rich dishes such as spaghetti sauce or pizza (27) _____________ increase assimilation from the digestive tract into the bloodstream. Lycopene is a fat-soluble substance, so the oil is said to help absorption to a great extent.
Điền vào ô 23 (hoặc Question 23)
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
Not only is summer sea ice shrinking rapidly in the Arctic, but so is the average thickness of sea ice.
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You should _____________ more attention to what your teacher explains.
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
What most prevents women from reaching the boardroom, say bosses and headhunters, is lack of hands-on experience of a firm’s core business.
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Blue is an old hand at such compositions and has never had any trouble with them.
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In 1973, when the tigers appeared to be facing _____________ , the World Wide Fund for _____________ and the Indian Government agreed to set up “Operation Tiger”.
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There are no easy ways to learn a foreign language, _____________ ?
