3.双刃剑

模套10（双刃剑）：

To sum up, _______is just like a double-edged sword. We might bear in mind that it can exert bothpositive and negative influences on our society. However, we can avoid thoseundesirable effects, when making full use of it.

模套11（双刃剑）：

Based on mypersonal experience, I can safely draw a conclusion that ______ is adouble-edged sword. Whether it is a boon or a bane will be discussed for anumber of years to come. However, one should make sensible use of technology,being a master rather than a slave of it.

模套12（双刃剑）：

To sum up,_________ is like a double-edged sword. In face of this phenomenon, we shouldbe prudent. Given the levels of intelligence and discretion imbued in people, Iam sure that most of them will be able to sidestep the potential drawbacks,while taking advantage of all its merits.

模套13（双刃剑）：

In the finalanalysis, ______ would amount to a double-edged sword. While it would serve asan important catalyst to inspire us to great achievements, at the same time itcould impede our progress in action. The optimal approach, in my view, is abalanced one which takes advantage of its benefits, while avoiding potentialdrawbacks.