Lesson 6

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<i><b>I. Vocabulary</b></i>

16 sodium chloride np /ˈsəʊdɪəm ˈklɔːraɪd/ muối ăn

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năng suất, màu mỡ

3 be committed to st/doing st sẵn lòng, cam kết

<i><b>III. Practice exercise 6</b></i>

<b>Question 1: Bone and ivory needles founded at archaeological sites i ndicate</b> that clothes h ave been sewn f or some 17,000 years.

<b>Question 2: Almost the electricity for industrial use comes from large generators driven by steam turbines.</b>

A. Almost B. for industrial use C. large generators D. driven by

<b>Question 3: Lack</b> of finances is one of the main barrier to many people's lifelong learning process.

<b>Question 4: Having treated irresponsibly</b> by human beings, the environment has been deteriorating. A. Having treated B. irresponsibly C. beings D. deteriorating

<b>Question 5: Junk food</b> is one of the r easons why so many American are overweigh or obese.

<b>Question 6: A pprentice is a period of time in which a person works in a certain amount of time to get</b>

h ands-on experience in a professional environment.

<b>Question 7: A caterpillar is a small, w orm-like animal that eventually turns a butterfly or moth.</b>

<b>Question 8: Wise man speak because they have something to say, fools speak because they have to say </b>

<b>Question 9: John w as angry and scolded his secretary for not having finished the report.</b>

<b>Question 10: A dolphin locates underwater objects in its path by doing a series of clicking and whistling </b>

sounds.

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<b>Question 11: Bears sleep during the winter, but they are not factual hibernators. They wake up when they </b>

hear loud noises.

<b>Question 12: Some animals estivate, or go into a deep sleep as an adaptation with the hot, dry months of </b>

<b>Question 13: Undergraduates at Oxford and Cambridge study for a BA d iploma, but after a period of </b>

time graduates can convert their BA to an MA without doing any further study.

<i><b>Question 14: In recent years, China h as put the lead in global warming pollution, producing about 28 </b></i>

percent of all CO<small>2 </small> emissions .

<b>Question 15: We are committed to p rovide fun and engaging classes that keep you learning n ew skills </b>

as well as providing o pportunities for social interaction.

<b>Question 16: Environmental campaigners argue that cheap short-haul flights have caused a massive i </b>

ncrease at carbon emissions over the past few years.

A. campaigners argue B. short-haul C. increase at D. emissions

<b>Question 17: However</b> type of raw materials is used in making paper, the process is essentially the same.

<b>Question 18: In early days, hydrochloric acid was done by heating a mixture of sodium chloride with </b>

iron sulfate.

<b>Question 19: Whenever</b> I'm in a social situation with my boss, we seem to run out of conservation after two minutes!

<b>Question 20: R egardless of your teaching method, the o bjective of any conversation class s hould be for</b>

the students to practice speaking words.

A. objective of any B. speaking words C. should be D. Regardless of

<b>Question 21: Foreign students who are d oing a decision about which school to attend may not know </b>

exactly where t he choices are located.

<b>Question 22: I t is</b> a good idea t o be careful in buying o r purchasing magazines from salespersons who may come to your door.

<b>Question 23: In that age of computers, it is difficult to imagine how tedious work of accountants and clerks </b>

must have been in the past.

<b>Question 24: Exhausting</b> testing is a testing or quality assurance approach in which all possible c ombinations of scenarios and test cases are used for testing

<b>Question 25: It's a g reat complement to b e asked to d o the job that we always dreamed of when we </b>

were at university.

<b>Question 26: I am so glad that he spoke with my behalf because I felt so awful that I could not make it to the </b>

event.

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A. with my behalf B. felt so awful C. make it D. the event

<b>Question 27: Most of the production like fruit and vegetables that you find in this supermarket has been</b>

<b>Question 28: T he warm weather of the last week has given way to colder conditions in the last two </b>

days putting the weekend prospects on the balance.

<b>Question 29: This will lead to l oss of trade</b> to the shop keepers who a re all having a hard enough time to p ut ends meet as it is.

A. loss of trade B. are all having C. put ends meet D. as it is

<b>Question 30: Tulips were originally wild flowers first cultivated in Turkey in the 11th century when they </b>

were high valued for their beauty.

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