大学英语六级（2013年12月考试改革适用）模拟试卷301
作文
1.For this part, you are allowed 30 minutes to write a short essay on cohesion. Your essay should include the importance of cohesion and measures to be taken to enhance cohesion. You are required to write at least 150 words but no more than 200 words.
On Cohesion
I assume that you are all familiar with the famous Chopsticks theorem—we can easily break one chopstick, but when a bunch of chopsticks are tied together, we will find it difficult to break them off even if we exhaust our strength. Simple as the theorem is, it aims at informing us of the significance of cohesion. Common sense has told us that cohesion proves to be extremely important, which can help us solve tough problems easily and improve our work efficiency.
To enhance cohesion, setting a clear and attainable common goal is the first step. When a team have a common goal, all team members will strive harder to achieve it. In addition, giving the group rewards is another important way to encourage team cohesion. Once rewarded for their achievement, the team members can harvest an intense sense of collective honor, which inspires them to make further contribution to the team.
To sum up, a team can overcome any dilemma and grow rapidly beyond expectation under the guidance of cohesion. It’s high time that we enhanced the team cohesion and raised cooperative consciousness.
解析：
词汇理解
Tiny pieces of gold could be used in the fight against cancer, new research has suggested. Scientists at Edinburgh University have just completed a study which shows the【C1】______metal increased the effectiveness of drugs used to treat lung cancer cells. Minute fragments, known as gold nanoparticles(纳米粒子), were【C2】______in a chemical device by the research team.
While this has not yet been tested on humans, it is hoped such a device could one day be used to reduce side effects of current chemotherapy treatments by【C3】______targeting diseased cells without damaging healthy tissue. Gold is a safe chemical element and has the ability to【C4】______chemical reactions.
Researchers at the University of Edinburgh discovered properties of the metal that allow these catalytic abilities to be accessed in living things without any side effects. The device was shown to be effective after being【C5】______in the brain of a zebrafish, suggesting it can be used in living animals.
The study was carried out in【C6】______with researchers at the University of Zaragoza\’s Institute of Nanoscience of Aragon in Spain, with funding coming from Cancer Research UK(CRUK). Dr. Asier, from the University of Edinburgh\’s CRUK Edinburgh Centre, said: \\
2.【C1】
H
解析：空格位于the之后，名词metal之前，故应填入形容词作定语。文章第一段首句提到研究发现金子有可能被用来治疗癌症，根据常识，金子是一种贵重的金属，故此处应填入H)precious“有价值的，珍贵的”。
3.【C2】
E
解析：空格所在句主语为fragments，空格位于were之后，句末有动作发出者the research team，故此处应填入动词的过去分词，与were构成被动语态。结合原文，此处指纳米粒子被包裹在化学仪器里，be encased in为固定搭配，意为“包裹于……”，故E)为答案。
4.【C3】
I
解析：空格前是介词by，空格后是动词现在分词targeting，故此处应填入副词来修饰动词。该句意为“尽管该仪器还未在人体上实验，但大家都期待，该仪器未来能在不损害健康细胞组织的前提下，通过击中染病细胞，来减少目前化学疗法产生的副作用”。I)precisely“确切地，精确地”与减少副作用构成语义一致，故为答案。
5.【C4】
A
解析：空格前是动词不定式标志词to，故此处应填入动词原形。文章第二句提到金子能提高药效，结合上下文语义，此处指黄金能“加速化学反应”，以促进药品发挥效力，故答案为A)accelerate“加速”。
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