. 
大补丸
a. entrepreneur n. 企业家
b. act out...  将……付诸行动;表现出……
Unhappy children often act out their frustrations in the classroom. 
不快乐的小孩常会在课堂上表现出挫折感。
 *frustrationn. 挫折感
2. 第二题空格应选 (A)
理由:
a. 空格前一句提及 “Go-kartsare four-wheeled, low-lying vehicles sometimes used in children’s racingcompetitions.”(卡丁车是一种有时会用于儿童赛车比赛的四轮、低底盘车辆。),而 (A) 项句子提及 “MariCarhas upgraded their go-kart models to reach a peak speed of 60 kph...”(MariCar 将他们卡丁车的机型升级以达到最高时速六十公里……),前一句的 Go-karts(卡丁车)与 (A) 项句子的 go-kartmodels(卡丁车的机型)互相呼应,故形成关联。
b. 根据上述,(A) 项应为正选。
大补丸
a. upgrade vt. 使升级
We upgraded our computer hardware to improve our efficiency. 
我们将计算机硬件升级以提高其效能。
b. peak a. 最高的 & n. 顶峰,高峰
c. enable sb toV  使某人能够……
Receiving a yearly bonus enabled Ethan to take a trip to Paris.
拿到年终奖金让伊森得以来趟巴黎之旅。
d. keep up with...  跟上……
Please slow down. I can’t keep up with you. 
请放慢脚步。我跟不上你。
3. 第三题空格应选 (F)
理由:
a. 空格前一句提及 “Risingonly 70 centimeters above the ground, however, they are difficult for bus andtruck drivers to see.”(然而,卡丁车只比地面高出七十公分,这让公交车和卡车驾驶者很难看见它们。),而 (F) 项句子提及 “Theyseemed to be asking for accidents...”(卡丁车似乎在自找事故……),前一句的 they are difficult for bus and truck drivers to see(这让公交车和卡车驾驶者很难看见它们)与 (F) 项句子的 Theyseemed to be asking for accidents(卡丁车似乎在自找事故)互相呼应,故形成关联。
b. 根据上述,(F) 项应为正选。
大补丸
seem to V  似乎∕好像……
The media seems to monitor everything celebrities say and do.
名人的一言一行似乎都受到媒体的监控。
*monitor vt.监视,监控
4. 第四题空格应选 (B)
理由:
a. 空格前一句提及 “...MariCars were involved in 12 traffic accidents in just two months.”(……MariCar 在短短两个月内就涉及了十二起交通事故。),而 (B) 项句子提及 “Ten ofthe victims were foreigners...”(其中有十名受害者是外国人……),前一句的 traffic accidents(交通事故)与 (B) 项句子的 victims(受害者)互相呼应,故形成关联。
b. 根据上述,(B) 项应为正选。
大补丸
a. victim n. 受害者
b. be unfamiliarwith...  对……不熟悉
Ed is unfamiliar with his new neighborhood because he just moved there.
艾德因为刚搬到新住处,所以不熟悉周围环境。
5. 第五题空格应选 (D)
理由:
a. 空格前一句提及 “Helmets will continue to be optional since theyinterfere with the Super Mario costumes.”(因为安全帽会妨碍超级玛利欧的服装,因此将可以选择是否要配戴。),而 (D) 项句子提及 “Driving without a helmet also gives the driverboth a better view and the feel of moving along in traffic.”(驾驶时不戴安全帽也可以让驾驶者拥有较佳的视野,并拥有一种在车流中前进的感觉。),前后两句皆提及 helmet(安全帽),故形成关联。
b. 根据上述,(D) 项应为正选。