考前必看：2019年托福考试阅读长难句盘点4

在做阅读的过程中，我们最需要去解决的就是长难句，一般阅读题也都是在这种疑难句子里出，那么怎么才能攻克长难句呢？首先我们就是要会分析，多看例句，小编给大家整理了疑难句子汇总，在坦途网托福考试频道都可以看到，现在我们就先来看这一篇吧！

1. Moreover, getting petroleum out of the ground and from under the sea and to the consumer can create environmental problems anywhere along the line.

2. The body that impacted Earth at the end of the Cretaceous period was a meteorite with a mass of more than a trillion tons and a diameter of at least 10 kilometers.

3. Only the last of these was suited at all to the continuous operating of machines, and although waterpower abounded in Lancashire and Scotland and ran grain mills as well as textile mills, it had one great disadvantage：streams flowed where nature intended them to and water-driven factories had to be located on their banks whether or not the location was desirable for other reasons.

4. In the 1760s, James Watt perfected a separate condenser for the steam, so that the cylinder did not have to be cooled at every stroke; then he devised a way to make the piston turn a wheel and thus convert reciprocating (back and forth) motion into rotary motion.

5. Coal gas rivaled smoky oil lamps and flickering candles, and early in the new century, well-to-do Londoners grew accustomed to gaslit houses and even streets.

6. Another generation passed before inventors succeeded in combining these ingredients by putting the engine on wheels and the wheels on the rails, so as to provide a machine to take the place of the horse.

7. When he grew older William Smith taught himself surveying from books he bought with his small savings and at the age of eighteen he was apprenticed to a surveyor of the local parish.

8. The companies building the canals to transport coal needed surveyors to help them find the coal deposits worth mining as well as to determine the best courses for the canals.

9. He later worked on similar jobs across the length and breadth of England all the while studying the newly revealed strata and collecting all the fossils he could find.

10. But as more and more accumulations of strata were cataloged in more and more places, it became clear that the sequences of rocks sometimes differed from region to region and that no rock type was ever going to become a reliable time marker throughout the world.

看过这篇文章有没有觉着这些句子会比一般的要难理解，这就是我们需要学习的地方，当我们把难得句子学会，自然其他的也不在话下了，在平时的复习中，要加强对自己的训练，越有难度越去挑战，这样我们才不断的突破自己，小编希望在托福考试成绩查询结果出来时，大家看到的都是自己想要的结果！