Câu 35: A. self B. else C. own D. shelf
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.
Probably the most important factor governing the severity of forest fires is weather. Hot, dry weather
lowers the moisture content of fuels. Once a fire has started, wind is etremely critical because it influences
the oxygen supply and the rate of spread. Forest type and forest conditions are also important factors. For
example, fire is more likely to occur in conifers than in hardwoods; slash-covered or brushy areas are
especially hazardous because the rate at which combustion consumes fuel is proportional to fuel volume.
Some fires are caused by lightning; others are caused by people. Those caused by people may be
accidental or intentional (incendiary). The causes of fire in the United States show large regional
differences. In the Rocky Mountains more than 70 percent of the fires are caused by lightning, whereas
incendiary fires amount to only about 1 percent. In contrast, more than 40 percent of the fires in the South
are incendiary, whereas lightning causes only 1 percent.
Bạn đang xem câu 35: - Đề khảo sát Tiếng Anh 12 lần 4 năm 2018 – 2019 trường THPT Yên Lạc – Vĩnh Phúc -