托福30天复习计划23-24.docx

托福30天备考计划第23天之阅读摘要：托福30天备考计划第23天之阅读：每一天制定不同的托福备考方案，30天后，让我们拿下托福100+！，快快操练起来吧！　　TPO18-3 Lighting 闪电【TPO18原文及答案】　　1. The electrical discharge takes place when the attractive tension between a region of negatively charged particles and a region of positively charged particles becomes so great that the charged particles suddenly rush together.　　2. At such temperatures, the collision between the ice pellets and the ice crystals causes electrical charges to shift so that the ice pellets acquire a negative charge and the ice crystals become positively charged. Then updraft wind currents carry the light, positively charged ice crystals up to the top of the cloud. The heavier negatively charged ice pellets are left to concentrate inthe center. This process explains why the top of the cloud becomes positively charged, while the center becomes negatively charged.(解释该自然现象的主要段落，信息量大，两道事实信息题一道推断题的出处。)　　3. Belowthis large, cold, negatively charged region, the cloud is warmer than -15℃, and at these temperatures, collisions between icecrystals and falling ice pellets produce positively charged ice pellets that then populate a small region at the base of the cloud.(考察因果关系的事实信息题出题点。)　　4. Most lightning takes place within a cloud when the chargeseparation within the cloud collapses. However, as the storm cloud develops,the ground beneath the cloud becomes positively charged and lightning can take place in the form of an electrical discharge between the negative charge of the cloud and the positively charged ground.5. Lightning that strikes the ground is the most likely to be destructive, so even though it represents only 20 percent of all lightning, it has received a lot of scientific attention.(前半句为修辞目的题出处，和后半句有因果关系，向后在本句找答案。)托福30天备考计划第23天之听力摘要：托福30天备考计划第23天之听力：每一天制定不同的托福备考方案，30天后，让我们拿下托福100+！TPO23听力部分的lecture 1，一个关于考古话题的演讲，快快开始练习起来吧！　　今天我们要跟同学分享的是TPO23听力部分的lecture 1，一个关于考古话题的演讲。【TPO23听力文本(Conversation+Lecture)】　　通过这篇文章我们来看看主旨题，托福听力一定要听好开头，因为开头一定会出现与主旨相关的关键词，有的时候还起着总领全文的作用。　　我们先来看一下文