1、【语法填空】 The Longji Rice Terraces 1. （build）by the local Zhuang and Yao people, to 2. Guangxi is home. Starting in the Yuan Dynasty, work on the terraces took hundreds of years, until its 3. （complete）in the early Qing Dynasty.So why did these people go to so much trouble 4. （turn） the entire mountain
2、s into terraces? Firstly, there are few large, flat areas of land in the region. 5. （build）the terraces therefore meant that they could increase the areas in which they could grow rice. Secondly, although the region has plenty of rain, the mountains are steep and the soil is shallow. The flat terrac
3、es catch the rainwater and prevent the soil from being washed 6. .But perhaps what is the 7. （important）is the way in which people have worked in harmony with nature to make these terraces and grow rice. The terraces are 8. （clever）designed, with hundreds of waterways that connect with each other. D
4、uring the rainy season, it is along these waterways that rainwater moves down the mountains and into the terraces. The sun heats the water and 9. （turn） it into vapour. This forms clouds from which rain falls down onto the mountain terraces once again. These terraces also provide a perfect environme
5、nt for birds and fish, some of which feed on insects that can do harm 10. the rice crops.【参考答案】1. were built 2. whom 3. completion 4. to turn 5. Building6. away 7. most important 8. cleverly 9. turns 10. to 【随堂练习1】在空白处填入1个适当的单词或括号内单词的正确形式。1. Sure, I could have asked her, but something prevented me _
6、 doing so. (2017 天津) 2. There is a need for more programs to educate the public about the causes and _ (prevent) of heart disease.【参考答案】1. from 2. prevention【随堂练习2】根据所给汉语，用适当的词块完成下列句子。1. Anyway, I cant cheat him its _（违背我的原则）. 2. _（要恪守自己的原则原则）, and tell him you wont do it.3. He wont give in as it is
7、 _ （原则问题）.4. Hes a man whos entirely _（没有原则）.5. While Mr Buffetts advice is sound _（原则上）, it is not easy to put into practice.【参考答案】1. against my principles2. Stick to your principles3. a matter of principle4. without principle5. in principle 【语法填空】 At the very beginning of the 1._ (twenty) century,
8、 only the very rich in Britain had gardens. Today, millions of Brits like to say that they have “green fingers”, with around half the population 2._ (spend) most of their free time gardening.For many people in the UK, their garden is their own private world. While many Brits like nothing 3._ (good)
9、than cutting the grass on Sundays, some are happy just 4._ (sit) and enjoy the beauty of their small world.But space in cities is limited and new 5._ (solution) need to be found. Those without outside space can rent small pieces of land to grow things. Today, over 4, 000 people are waiting 6._ such
10、pieces of land in London. A new idea is to turn rooftops and walls into private gardens. These gardens have 7._ (success) helped make the cities greener and improve air quality.Gardening is good for the soul as well as for the environment. No other free time activity 8._ (allow) you to be at one with nature and create more beautiful living things. If you have any doubt, take a moment to reflect 9._ this line from The Secret Garden：“10._you tend a rose.A thistle cannot grow.”【参考答案】 1. twentieth 2. spending 3.better 4.to sit 5.solutions6.for 7. successfully 8.allows 9.on 10.Where