根据第二段中的 Around 80% of forest fires in the United States are caused by humans. 可知,在美国80%的森林火灾是由人类引起的。 2.A 推理判断题。 根据第三段中的 The temperature (how hot it is)and humidity (how dry the air is) will also influence how well the fire will spread.可知,...
We have always been warned of the dangers of forest fires. They cause to a forest. They kill many plants and animals in an ecosystem(生态系统), which is a group of living things and their environment. But have you ever heard of a forest fire that can be for a forest? People start ...
As climate in North America continues to become warmer and drier through the 21st century, a new study finds that fire may be playing an increasingly important role in shaping the climate of the boreal regions of Canada. Forest fires change the amount of shortwave radiation absorbed by Earth's...
aThe most important natural cause of fire is lightning (闪电). This accounts for 11 percent of forest fires on protected land for the entire nation.. 火的最重要的自然起因是闪电 (闪电)。 这在被保护的土地占森林火灾的11%为整个国家。[translate]...
We have always been warned of the dangers of forest fires. They cause ___ 85 ___ to a forest. They kill many plants and animals in an eco-system, which is a group of living things and their environment. But have you ever heard of a forest fire that can be ___86___ for a fo...
结合上文 Without fires, the oldest and largest trees would stop sunlight from reaching the forest floor 可知,没有火灾的话,最大最老的树会阻止阳光到达地面,火灾能除掉(get rid of)这些树中的一部分。 故正确答案为D。 88 : 结合上文 Heat from a fire allows the coat of the seeds to open up...
We have always been warned of the dangers of forest fires. They cause 85 to a forest. 86.A.考查态度推理。 前文提到森林 点 火灾的一些弊端,接着后文出现了 They kill many plants and animals in an eco 转折连词but,可知后面要介绍森林 system, which is a group of living things and their ...
damage to forest resources.然而，随着全球性气候变暖，频繁发生的森林火灾给森林资源造成巨大损失。2 Every year, forest fires and severe storms cause a great deal of damage to forests in the northwestern United States.每年，在美国西北部，森林火灾和一些严重的暴风雨会给森林造成严重的损害。引...
完形填空 We have always been warned of the dangers of forest fires.They cause 1 to a forest.They kill many plants and animals in an eco-system, which is a group of living things and their environment.But have you ever heard of a forest fire that can
Choose the words or expressions and complete the passage (选择最恰当的单词或词语,完成短文)1.We have always been warned of the dangers of the forest fires. They cause1to a forest. They kill many plants and animals in an eco-system, wh