4. 【解析】选A。考查连词。答句句意: 完全正确。即使他们已经学到了许多的语法和单词。even if即使, 纵然, 符合句意。now that既然; if only但愿; as if好像。

　　5. 【解析】选B。考查动词辨析。句意: 像红色这样的颜色传达了有精力和体力的意识。convey传达, 表达; exchange交换; transform使改变, 改善; transfer转换, 转变。

　　6. 【解析】选C。考查动词短语。句意: 我们的电脑和世界范围内的网络连接, 这为人们提供了交流的渠道, 也为我们提供了需要的信息通路。link up联合, 连接; put up举起, 张贴, 搭建, 提供食宿等; make up编造, 虚构, 化妆; call up征召。

　　Ⅱ. 1. arisen2. drunk

　　3. reservations

　　4. making

　　5. unfortunately

　　Ⅲ. 1. linked up to hold

　　2. sped up

　　3. Even if/though we achieved great success

　　4. arising from

　　5. turned to us for help

　　Ⅳ. 【参考范文】

　　As the car industry develops, more and more families have cars, which speeds up the development of our national economy. However, more cars on the road lead to a lot of traffic jams. What’s more, some drivers violate traffic rules, such as driving after getting drunk, speaking on their phones while driving, which made more accidents and more deaths arising from those accidents over the past years. Having realized this, more and more people have the plan to take buses to go to work, which can pick up and drop off people at different stops on the route.

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