Test Yourself C Unit 7 - 8 English 12

Exercise 1: Choose a, b, c, or d that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.

Exercise 2: Read the passage carefully and choose the correct answer. Consider activities that most take for granted, particularly those who live in industrialized nations: drinking a glass of water; driving a car or traveling by mass transportation; living in a decent house or apartment; using modern household appliances; using tools to build, fix and repair; even breathing fresh air. These activities improve our quality of life. Have you considered that to do all of the above requires the availability of natural resources, whether used as raw materials or in finished products? The United Nations predicts that the global population will increase from the present 6.65 billion to 7.95 billion by the year 2025. At the same time, the world is becoming more prosperous. The average person is consuming more food, water, energy and metals. Multiple millions in nations that were once poor are now moving into the middle class. They are driving cars, acquiring household appliances, using electronic gadgets and adopting high-protein diets, similar to Western industrialized nations. The subject of natural resources has been in the news for years. The media has long reported that the world's supply of oil, minerals, fresh water, and lumber are in danger of running out. Yet very few people take this seriously. Within the next 50 years, the world's population is projected to rise by 40%. This growth, coupled with increasing industrialization and urbanization, will result in greater demand for water. Water will become much scarcer. The United Nations figures suggest that there are around 300 potential conflicts over water all over the world. According to the World Health Organization (WHO), about one-sixth of the world's population lacks access to clean water, while 40% are without access to proper sanitation services.

Exercise 3: Fill in each numbered blank with one suitable word or phrase. Robots already have a (16) _____ role in medicine. Robots are helping doctors achieve more (17) _____ in the operating room, performing safer, less invasive techniques. For example, The Da Vinci Surgical System by Intuitive Surgical helps simplify complex procedures, and lets surgeons work through much smaller incisions, thus making patient (18) _____ easier and quicker. Advances in bio-robotics are leading to even more and more applications in surgery (19) _____ robots have the potential to perform better than human surgeons in certain respects. The pace of technological change is rapid, and it is easily possible to foresee a time (20) _____ robots will become our teachers, policemen and even soldiers. Robots will be better soldiers than humans. They can strictly (21) _____ the rules of engagement, codes of conduct, and war protocols (22) ___ better than more passionate humans, resulting (23) ____ a reduction of war crimes. Most robots in the future will do jobs which are the sorts of things that people used to do. They will take away a lot of the mundane physical jobs certainly. Some (24) _____ predict that it is not just manual jobs that will be replaced. The more advanced the technology becomes, the more it forces us to (25) _____ on those things that are fundamentally human.