2017年托福阅读模拟试题练习
生命的绝唱来机只争朝夕,如诗的`年华更需惜时如金,下面是小编为大家搜索整理的托福阅读模拟试题练习,希望大家能有所收获,更多精彩内容请及时关注我们应届毕业生考试网!
What makes it rain? Rain falls from clouds for the same reason anything falls to Earth. The Earth's gravity pulls it. But every cloud is made of water droplets or ice crystals. Why doesn't rain or snow fall constantly from all clouds? The droplets or ice crystals in clouds are exceedingly small. The effect or gravity on them is minute. Air currents move and lift droplets so that the net downward displacement is zero, even though the droplets are in constant motion.
Droplets and ice crystals behave somewhat like dust in the air made visible in a shaft of sunlight. To the casual observer, dust seems to act in a totally random fashion, moving about chaotically without fixed direction. But in fact dust particles are much larger than water droplets and they finally fall. The average size of a cloud droplet is only 0.0004 inch in diameter. It is so small that it would take sixteen hours to fall half a mile in perfectly still air, and it does not fall out of moving air at all. Only when the droplet grows to diameter of 0.008 inch or larger can it fall from the cloud. The average raindrop contains a million times as much water as a tiny cloud droplet. The growth of a cloud droplet to a size large enough to fall out is the cause of rain and other forms of precipitation. This important growth process is called "coalescence.
23. What is the main topic of the passage?
(A) The mechanics of rain
(B) The weather patterns of North America
(C) How Earth s gravity affects agriculture
(D) Types of clouds
word "minute in line 4 is closest in meaning to which of the following?
(A) second
(B) tiny
(C) slow
(D) steady
25 word "motion in line 5 is closest in meaning to
(A) wind
(B) change
(C) movement
(D) humidity
crystals do NOT immediately fall to Earth because
(A) they are kept aloft by air currents.
(B) they combine with other chemicals in the atmosphere
(C) most of them evaporate
(D) their electrical charges draw them away from the earth
27. The word "random" in line 7 is closest in meaning to
(A) unpredictable
(B) perplexing
(C) independent
(D) abnormal
can be inferred about drops of water larger than 0.008 inch in diameter?
(A) They never occur.
(B) They are not affected by the force of gravity.
(C) In still air they would fall to earth.
(D) In moving air they fall at a speed of thirty -two miles per hour.
29 How much bigger is a rain drop than a cloud droplet ?
(A) 200 times bigger
(B) 1,000 times bigger
(C) 100,000 times bigger
(D) l,000,000 times bigger
30. In this passage, what does the term "coalescence" refer to
(A) The gathering of small clouds to form larger clouds
(B) The growth of droplets
(C) The effect of gravity on precipitation
(D) The movement of dust particles in the sunlight
-
2017托福写作必知七项基本原则
导语:取得托福写作好成绩和正确的复习方法密不可分,要想提高托福写作能力就应该在复习时了解英语写作的七项基本原则。下面YJBYS小编向大家介绍托福写作必知的七项基本原则,欢迎参考!一、长短句原则工作还得一张一驰呢,老让读者读长句,累死人!写一个短小精辟的句子,...
-
托福考试必备词汇
词汇,又称语汇,是一种语言里所有的(或特定范围的)词和固定短语的总和。例如汉语词汇、英语词汇或一般词汇、基本词汇、文言词汇、方言词汇等;还可以指某一个人或某一作品所用的词和固定短语的总和,以下是小编精心整理的托福考试必备词汇,欢迎阅读与收藏。托福考试词汇...
-
2016托福听力高分备考技巧
新托福由四部分组成,分别是阅读(Reading)、听力(Listening)、口试(Speaking)、写作(Writing)。每部分满分30分,整个试题满分120分。下面是yjbys网小编提供给大家关于托福听力高分备考技巧,希望对大家的备考有所帮助。首先,最重要的一点是每一个同学都应该找到最适...
-
托福听力主旨题的答题技巧范例
托福考试中,几乎每篇文章都会涉及到的题目就是主旨题,而把握好主旨题同样又是解答其他题目的关键,所以,把握好主旨题是解题的重中之重,下面小编就带大家一起来看看托福听力主旨题的答题技巧吧!一、主旨题在原文和题目中的位置首先,大家要明确托福听力考试的一大特色...