2018年托�？谡Z考試題庫：蜻蜓是最高效的捕食者

　　新托福口語題目回憶版本一：

　　話題：dragonfly 是most effective predator

　　要點(diǎn)1：compound eyes 視野大

　　例子1：可以看到獵物從各個(gè)方向，即使蚊子不說從正面飛來也可以

　　要點(diǎn)2：腦中有個(gè)計(jì)算系統(tǒng)，可以感知獵物的飛行速度

　　例子2：蚊子分來可以預(yù)測(cè)path和speed，所以蚊子根本無處可逃。

　　考題解析：

　　先總說整篇文章講的是dragonfly 是most effective predator的兩個(gè)理由。 第一個(gè)理由是compound eyes給了它broad field of vision，比如它可以從各個(gè)方向看到獵物，即使蚊子從正面飛來也可以，都能夠精確定位獵物。再說第二個(gè)方面是它腦中有個(gè)computing system，可以percept the speed of flying prey。比如蚊子來了之后，dragonfly可以預(yù)測(cè)其path和speed而后進(jìn)行處我調(diào)整以進(jìn)行捕食，蚊子將無處可逃

　　新托�？谡Z題目回憶版本二：

　　dragonfly有兩個(gè)body features可以幫助自己有效地捕食。第一，它們有一個(gè)很大的眼睛，可以幫助他們看full direction，還舉了一個(gè)例子說明dragonfly可以在空中看到它們并捕食它們。第二，他們有mental ability， 可以判斷飛行或運(yùn)動(dòng)中的動(dòng)物的path、speed，從而捕食他們。

　　托�？谡Z范文一：

　　In the lecture, the professor talks about two reasons why the dragonfly is the most effective predator.

　　The first one is that compound eyes give them a broad field of vision. With the help of compound eyes, the dragonfly can clearly see preys flying from all directions, including in the very front so that no preys will be omitted.

　　The second one is that they have a computing system to predict the flying speed of the preys. This system is sophisticated enough to work out the speed the preys nearby travel at and the dragonfly can make adaption to capture them. For example, when approaching the dragonfly, the mosquitos’ path and speed will be worked out in a short time. And the dragonfly will take actions and the mosquitos have nowhere to hide and finally become meals of the dragonfly.