The words in the box below are either active words or academic words marked in the Academic Word List (AWL). Choose the most suitable one to complete each sentence. Change the form where necessary. bind compound convert defined exposure factor impact launch reaction source 1) It has been proven by scientists that continuous _____________ to sound above 80 decibels (分贝) could be harmful to one's ears. 2) Honey is basically a ___________ of water, two types of sugar, vitamins and enzymes. 3) Fish is a rich _____________ of protein, which is significant for one's growth and health. 4) The engineers put up a series of four connected tubes in the water to _____________ wave motion cleanly into electricity. 5) It is urgent for the ill-managed company to establish more ______________ responsibilities for each employee to carry out its activities. 6) The technicians' support is an important ___________ in the success of our research project. 7) When two or more elements combine and form a compound, a chemical ____________ takes place. 8) The public expect the conference to have a marked ________________ on the future of the national economy. 9) The new liquid spray-on skin technology, which __________ to the topmost layer of skin, is a world first Australian invention. 10)The company is about to _____________ a worldwide advertising campaign to promote its sales.xx
题目解答
答案
解析
本题考查学术词汇（AWL）的语境应用能力，需根据句意选择恰当的词并调整形式。解题核心在于：
- 理解词义：明确每个词的常见含义及用法；
- 匹配语境：通过句子逻辑关系确定所需词性（如名词、动词）；
- 排除干扰：注意同义词或近义词的细微区别。
1) continuous _________ to sound
关键点：表示“接触噪音”需用名词。exposure意为“暴露、接触”，符合“暴露于噪音”的语境。
2) a _______ of water
关键点：表示“由...组成”需用名词。compound意为“化合物、混合物”，指蜂蜜由多种成分组成。
3) rich _________ of protein
关键点：表示“来源”需用名词。source意为“来源”，强调蛋白质的来源。
4) _________ wave motion into electricity
关键点：表示“转换”需用动词。convert意为“转换”，指将波浪能转化为电能。
5) more ________ responsibilities
关键点：修饰名词需用形容词。defined意为“明确的”，强调职责明确。
6) important _______
关键点：表示“因素”需用名词。factor意为“因素”，指技术支持的重要性。
7) chemical ________ takes place
关键点：表示“化学反应”需用名词。reaction意为“反应”，指化学变化。
8) have a marked __________
关键点：表示“影响”需用名词。impact意为“影响”，指显著作用。
9) ______ to the topmost layer
关键点：表示“粘合”需用动词。bind意为“粘合”，此处用第三人称单数形式。
10) _________ a worldwide advertising campaign
关键点：表示“启动”需用动词。launch意为“启动、发起”，指开始广告活动。