1、1. There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon.毫无疑问地球正在变暖，而且全球变暖是人为的，而不是一种随机的自然现象。There is no doubt that 毫无疑问（主句为否定时，名词doubt 的同位语从句使用连词 whether）I doubt我怀疑（主句为肯定时及物动词 doubt 后面的连词用 whe
2、ther 或 if；主句为否定时，doubt 之后的宾语从句用that）I have no doubt that you will succeed.我一点也不怀疑你会成功。I doubt whether he will come to the party.我怀疑他是否会参加聚会。2. Without the greenhouse effect, the earth would be about thirty-three degrees Celsius cooler than it is.没有温室效应，地球温度将会比现在低 33 摄氏度左右。这是一个含蓄虚拟语气，without the gree
3、nhouse effect 可以改写成 if there was no greenhouse effect 形式的虚拟条件句。Without her, I would not have managed it.【一讲一练】完成句子。1. 我毫不怀疑他在讲真话。_ he is telling the truth.2. 毫无疑问，他们会请你帮忙的。_ they will ask you for help.【答案】1. I dont doubt that2. There is no doubt that【解析】1. I dont doubt that意思是“我不怀疑” ，后跟 that 从句。2. T
4、here is no doubt that意思是“毫无疑问” 。1.没有你的帮助，昨天我不会赶上公交车。_, I could not catch the bus yesterday.2. 假如明天下雨，你怎么办？_, what would you do?没有她，我就不能设法完成。Without the oxygen, life could not exist.没有氧气，就不会存在生命。【名言警句】Every flow has its ebb. 潮有涨落日，人有盛衰时。To save time is to lengthen life. 节省时间就是延长生命。3. They also agree
5、that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide. 他们也认为，越来越多的燃烧矿物燃料，是导致二氧化碳增加的原因。本句中 agree 后跟的是一个 that 引导的宾语从句。It isthat是一个强调句型，强调句子的主语 the burning of more and more fossil fuels.(强调句型是对句子的成分而不是某个词进行强调)比较：It is a small village where he was born
6、.这就是他出生的小乡村。（定语从句，where 指代 a small village，在句中作状语）It is in the small village that he was born.他出生在这个小乡村里。（强调句型，强调句子的状语）【答案】1. Without your help2. If it should rain tomorrow【解析】1. 从句是对过去的虚拟，without your help 可以改为 if you didnt help me。2. 本句对将来虚拟，应用虚拟语气。完成句子。1. John 就出生在这家医院。_ John was born.2. 几年前我就在这所
7、学校读书。_ I studied a few years ago.【答案】1. It was in this hospital that2. It was at this school that【解析】1.句子为强调句，去掉 It isthat句子依然成立。本句强调的是出生4. It is OK to leave an electrical appliance on so long as you are using itif not, turn it off!只要你在使用电器设备，便可以把它开着。如果不用就把它关掉！的医院。2. 句子为强调句，去掉 It isthat句子依然成立。本句强调的是
8、“我”以前读书的学校。完成句子。1. What are you going to do this afternoon?句型公式：so long as 引导条件状语从句so/as long as 只要，引导条件状语从句as long as 还可译为 “长达，和一样长久”as far as 远至；就来说as well as 和一样好；不但as soon as 一就They believe I can succeed next time as long as I work harder.他们相信只要我更加努力学习下次我就能成功。5. Even if we start reducing the amo
9、unt of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries.即使我们开始减少二氧化碳和其他温室气体的含量，在(未来)几十年或几个世纪内，气候仍会持续转暖。even if=even though 引导让步状语从句，意为Ill probably go for a walk later on _(只要天一直好的话).2. _(据我所知), he has gone abroad.3. We went to see him _(我们一到
10、那里).【答案】1. so long as it stays fine2. As far as I know3. as soon as we got there【解析】本题考查 so long as, as far as 和as soon as 的用法。Jack felt grateful to his teacher _ he couldnt find words to express it.A. as if B. even thoughC. so that D. now that2. The government should protect the old valuable buildi
11、ngs _ they are not in harmony with the modern ones nearby.“即使，纵使” 。Even if we achieve great success in our work, we should not be conceited.即使我们在工作中取得了巨大的成功，也不应该自满。Even if some foreigners speak ill of our Shenzhou spaceship, we still stick to the route of peaceful exploration of the space.即便某些外国人对中国“神舟”七号说三道四，但我们仍将坚持和平探索太空的路线不动摇。A. even though B. as ifC. so that D. now that【答案】1. B 2. A【解析】1. 句意：尽管无法用言语表达，但 Jack仍对老师感激不尽。只有 even though 符合句意要求。2. 句意：虽然这些古建筑与附近现代化建筑物不协调，但政府有必要保护它们。even though 表示让步。版权所有：学优高考网()
