综合类：词汇选项new system
1.A new system of quality control was brought in to overcome the defects in the firm’s products.
A) invested B) introduced C) installed D) insisted
答案及解析:B. 解题思路：借助画线短语核心词(bring)的基本含义―“带来/引起”，并借助与画线结构相直接相关的结构含义(质量控制系统被。。)判断B是答案。
Invest: vt.(常与in连用)投入(资金，精力，时间等)
e.g. Ive invested a lot of time and effort in this plan. (喻)
我已在这计划中投入了大量的时间和精力
insist: vi，vt(常与on，that连用)主张；坚持，坚持要求(宾语从句跟虚拟语气结构)
e.g. We insist on / upon self-reliance.
我们坚持自力更生。
e.g. We all insist that we not rest until we finish the work.
大家都坚决要求不完工就不休息
2.Techniques to harness the energy of the sun are being developed.
A) convert B) store C) utilize D)receive
答案及解析: C. 解题思路：被选项是动词时关注所给句子中的空格后续结构，因此关注原句中的宾语：the energy of the sun(太阳能)。被选项中：convert通常用在convert…into…的结构中，而原句中没有这样的结构，所以排除A;而根据句意凭借常识store(储存)和 receive(接收)太阳能不是刚发展的新技术，所以也排除掉。答案为C.
补充：
convert: vt.(常与into连用)转变；变换；兑换
e.g. That building has been converted into a school.
那座楼房改成学校了。
e.g. I want to convert some Hong Kong dollars into American dollars.
我想把一些港元换成美元
3. Hundreds of years ago cloves (丁香)were used to remedy headaches.
A) disrupt B) diagnose C) evaporate D) cure
答案及解析: D. 解题思路：备选答案均为动词，关注原句中的宾语headaches(头痛)。解题思路：在习惯搭配上，B和D都可带“疾病类”的词作宾语，但头痛不用diagnose (诊断)，却可cure (治疗)头痛，所以答案为D.另外diagnose 的用法是：diagnose… as...，如：The plastic surgeon diagnosed my illness as a rare bone disease./整形外科医生诊断出我的病是一种罕见的骨病。
4. Experts generally agree that diet has an important bearing on ones health.
A) result B) factor C) cause D) influence
答案及解析: D. 解题思路：从习惯搭配的角度解题：只有D才能和介词on搭配使用。
补充：
influence n. (常与on连用)影响力；感化力； vt. 影响
e.g. Many a woman has had an influence upon her husband. 许多妇女对其丈夫有影响。
Bearing: n. (与on，upon连用)关系
e.g. What they have done has no bearing on the promotion of sales.
他们所干的事情与这次促销活动毫无联系
5. Mary was compelled to take in washing to help support her family.
A) pleaded B) appealed C) forced D) instructed
答案及解析: C. 解题思路：借助句意：Mary.。在家里帮别人洗衣服以帮助养家糊口。而C的含义最合适句意。被选项中：