今天2017年4月23日真题范文赏析，同学们可以试着写一写，然后看看自己有哪些地方写的不够好，注意及时改进。想要获得更多托福考试真题资料，请继续关注网。
阅读：鳗鱼(eel)的数量在减少以及原因
1. 欧洲海域都在建大坝，这阻碍了鳗鱼回归来繁殖。
2. 鳗鱼的食物鱼里面有寄生虫，导致他们感染寄生虫。
3. 鳗鱼繁殖的位置很难找到,所以很难帮他们排除危险。
听力：提出了三个解决方案
1. 建立带洞的大坝，鳗鱼可以穿过洞，游过去繁殖。
2. 已经发现哪些鱼上面有那种寄生虫，可以把这些鱼引到别的鳗鱼接触不到的地方。
科学家使用电子设备已经可以确定鳗鱼的位置，保护鳗鱼。
范文：
The reading passage lists three factors which have caused the decline of European eels and the lecturer gives his own solutions to solve the problem.
First, the reading points out that some dams are being built in most area of European waters, which will block eels’ immigration route to reproduce. However, the professor suggests that those dams could be designed with a series of hollowed tubes on them, thereby letting those baby eels get through and reach their feeding ground.
Second, even though the reading passage suggests that is it the parasites that cause the decline of eels, the professor proves that this claim is indefensible. He states that some ecologists have already found that the fattest eels which consume large amount of fish are most vulnerable to parasites. Thus, the spread of infection can be well controlled if we move these eels into areas where there are not so much fish for them to eat.
The passage also presents the third problem that eels always lay eggs secretly, so it is hard to prevent them from danger due to the difficulty of locating their breeding areas. However, the professor mentioned that the scientists can locate eels’ breeding grounds by installing some advanced electronic devices on them, thus they could spare no efforts to protect those eels. (217 words)
以上的内容就是2017年4月23日托福综合写作真题范文赏析，希望可以给大家提供更多参考。