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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

 

          Living things include both the visible world of animals and plants as well as the invisible world of bacteria and viruses. On a basic level, we can say that life is ordered. Organisms have an enormously complex organization. Life can also “work”. Living creatures can take in energy from the environment. This energy, in the form of food, is changed to maintain metabolic processes and for survival. Life grows and develops. This means more than just getting larger in size. Living organisms also have the ability to rebuild and repair themselves when injured. Life can reproduce. Life can only come from other living creatures. Life can respond. Think about the last time you accidentally stubbed your toe. Almost instantly, you moved back in pain. Finally, life can adapt and respond to the demands placed on it by the environment. There are three basic types of adaptations that can occur in higher organisms.
          Reversible changes occur as a response to changes in the environment. Let's say you live near sea level and you travel to a mountainous area. You may begin to experience difficulty breathing and an increase in heart rate as a result of the change in height. These signs of sickness go away when you go back down to sea level.
          Body- related changes happen as a result of prolonged changes in the environment. Using the previous example, if you were to stay in the mountainous area for a long time, you would notice that your heart rate would begin to slow down and you would begin to breath normally. These changes are also reversible. Genotypic changes (caused by genetic change) take place within the genetic make up of the organism and are not reversible. An example would be the development of resistance to bug-killing chemicals by insects and spiders

In what way is life organized?.

A. Hard

B. Difficult

C. Complicated

D. Problematic

Câu trả lời:

We are now facing the excessively increasing consumption of energy all over the world. It is predicted that global energy consumption will rise nearly sixty percent in the next twenty years. This rise is caused by some factors such as population growth, urbanization, and economic and industrial expansion. Seeking cheap, clean, effective sources of power, some countries are hopeful of being able to produce part of their electricity with renewable means such as wind or solar power. On a cloudy day in Britain, a solar roof can generate enough electricity for the household to play 140 hours of TV and make 35 cups of tea. One kilowatt of solar energy can save up to a ton of CO2 emissions each year. Solar panels and wind generators help to provide alternative sources of energy for private homes, and they are no longer too expensive. These renewable energy systems can lead to big savings for households in the long run and in Britain the government is providing financial help with the cost of installing them. In addition to the use of renewable energy sources, human beings now know how to save energy more efficiently. Companies make electrical equipment which is environment-friendly and money-saving. Refrigerators, washing machines, tumble dryers and other home appliances are labeled to help consumers compare the energy efficiency of each model with other appliances in the same category. Households also try to save energy in whatever way. Ordinary light bulbs are replaced with energy-saving bulbs. Having a shower instead of a bath becomes more common. TVs, electric fans and air conditioners are turned off when they are not in use. Those are simple actions but they contribute significantly to the energy saving movement. In a nutshell, using renewable energy sources and saving energy at home not only saves money but also protects the Earth’s resources.

Câu trả lời:

We are now facing the excessively increasing consumption of energy all over the world. It is predicted that global energy consumption will rise nearly sixty percent in the next twenty years. This rise is caused by some factors such as population growth, urbanization, and economic and industrial expansion. Seeking cheap, clean, effective sources of power, some countries are hopeful of being able to produce part of their electricity with renewable means such as wind or solar power. On a cloudy day in Britain, a solar roof can generate enough electricity for the household to play 140 hours of TV and make 35 cups of tea. One kilowatt of solar energy can save up to a ton of CO2 emissions each year. Solar panels and wind generators help to provide alternative sources of energy for private homes, and they are no longer too expensive. These renewable energy systems can lead to big savings for households in the long run and in Britain the government is providing financial help with the cost of installing them. In addition to the use of renewable energy sources, human beings now know how to save energy more efficiently. Companies make electrical equipment which is environment-friendly and money-saving. Refrigerators, washing machines, tumble dryers and other home appliances are labeled to help consumers compare the energy efficiency of each model with other appliances in the same category. Households also try to save energy in whatever way. Ordinary light bulbs are replaced with energy-saving bulbs. Having a shower instead of a bath becomes more common. TVs, electric fans and air conditioners are turned off when they are not in use. Those are simple actions but they contribute significantly to the energy saving movement. In a nutshell, using renewable energy sources and saving energy at home not only saves money but also protects the Earth’s resources.