During a unique experiment, corals under cold temperatures suffered greater damage in just days compared with the heat treated corals. Yet the researchers found that corals were eventually able to adjust to the cold conditions, make their health stable and continue to grow. However, over the long term corals subjected to heat suffered more greatly than those in cold, with evidence of severe whitening and growth stoppage, which leads to death.
The coral’s ability to adjust to cool temperatures surprised the researchers, who say the study’s results show the complexities of monitoring coral health in response to different environmental factors.
“Global warming is associated with increases but also decreases of temperatures,” said Deheyn, one of the researchers. “Not much has been known about the comparative effects of temperature decrease on corals. These results are important because they show that corals react differently to temperature differences, which is important for future management of coral reefs in the field of climate change.”
66. According to the first paragraph, we know that ____________.
A. different corals suffer differently by climate change.
B. both heat and cold stress affect corals.
C. cool temperature is more destructive to corals.
D. it’s hard to know the effect of climate change on corals.
67. The phrase “subjected to”(in Paragraph 3) is closest in meaning to”_______”.
A. referred to B. adjusted to C. exposed to D. stuck to
68. By “Not much has been known about…” Deheyn probably means that ______.
A. we know very little about the effects of temperature decrease on corals
B. temperature decrease is not expected to have a bad effect on corals
C. it makes no sense to study the effects of temperature decrease on corals
D. corals may not have been affected by the decrease in temperature.
69. What is the passage mainly about?
A. measures should be taken to control global warming.
B. Climate change has resulted in more cold currents.
C. Heat is responsible for the destruction of corals.
D. Heat can cold damage corals in their own ways.
Good tool design is important in the prevention of overuse injuries. Well-designed tools and devices will require less force to operate them and prevent awkward hand positions. They will allow the worker to keep the elbows (肘部) next to the body to prevent damage to the shoulder and arm.
Overuse injuries can therefore be prevented or reduced if the employer provides, and workers use:
●power tools rather than having t use muscle power.
●tools with specially designed handles that allow the wrist to keep straight (See Figure I). This means that hands and wrists are kept in the same position as they would be if they were hanging relaxed at a person’s side
●tools with handles that can be held comfortably by the whole hand. This means having a selection of sizes--- remember that tools that provide a comfortable firm hold for a person with a very large hand may be awkward for someone with a very small hand. This is a particularly important consideration for women who may use tools originally designed for men.
●tools that do not press fingers (or flesh) between the handles, and whose handles do not have sharp edges or a small surface area.
70. Which of the following might be the best title for the passage?
A. Good Tool Design for Women B. Tool Design and Prevention of Injuries
C. Examples of Good Tool Design D. Overuse of Tools and Worker Protection
71. Which of the following describes a well-designed tool?
A. It’s kept close to the body. B. It fully uses muscle power.
C. It makes users feel relaxed. D. It’s operated with less force.
72. What is Figure I used to show?
A. The effective use of the tool B. The way of operating the tool.
C. The proper design of the handle. D. The purpose of bending the wrist.
73. In choosing tools for women, _______ of the handle is the most important.
A. the size B. the edge C. the shape D. position
When we perceive other people, we seldom describe a person in cold and objective words. “She was 5 feet 8 inches tall, had fair hair, and wore a colored skirt.” More often, we try to get inside the other person to pinpoint his or her attitudes, emotions, motivations, abilities, ideas and characters. Furthermore, we sometimes behave as if we can accomplish this difficult job very quickly---perhaps with a two-second glance.