完形填空

    One summer, Aunt Betta and Uncle Bill invited me to travel with them back home to Pennsylvania. I had never been1Los Angeles and was eager to meet our relatives.

    Our first night, we drove through the desert, and then through roads cut through hills. The next day we went through the Rocky Mountains. It was2driving up long inclines（斜坡） with abrupt U-shape turns on the steep hillsides, then driving3slowly with great caution. Beyond Colorado, we drove through miles of 4, where I saw actual food being grown. I5some of the crops.

    In one small town we passed through, Aunt Betta decided I needed new6and took me to a country 7. I was used to8dresses and skirts. Now I had my first pair of jeans, a flannel shirt, shorts and a T-shirt. I loved them all.

    9 we reached our destination. Uncle Bill's aunt had a perfect little two-story house. The first thing I 10was a bed in a cute little room — for me! I looked forward to that. It would be like sleeping in a dollhouse. In the backyard, I saw red things11the back fence. Uncle Bill's uncle said, "I think you never ate a 12tomato in L.A." I hadn't. He 13picked one for me.

    I met all my new aunts, uncles and cousins. My cousins taught me how to do cartwheels (恻手翻) in the big front yard. Country people have more14, I thought.

    All the adults cried when we 15, but I took home all the 16of everything I'd seen. Back in L.A., my lungs hurt when I took a deep breath. I 17 the fresh air. I dreamed of homegrown tomatoes. My country clothes seemed out of 18, but I wore them anyway.

    I was two weeks late starting19, but I told my teachers only that I'd been in Pennsylvania and decided to 20all the rest to myself. If only they could have experienced everything that I did!

    Would it surprise you to learn that, like animals, trees communicate with each other and pass on their wealth to the next generation?

    UBC Professor Simard explains how trees are much more complex than most of us ever imagined. Although Charles Darwin thought that trees are competing for survival of the fittest, Simard shows just how wrong he was. In fact, the opposite is true: trees survive through their cooperation and support, passing around necessary nutrition “depending on who needs it”.

    Nitrogen (氮) and carbon are shared through miles of underground fungi (真菌) networks, making sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy. This hidden system works in a very similar way to the networks of neurons (神经元) in our brains, and when one tree is destroyed, it affects all.
     Simard talks about “mother trees”, usually the largest and oldest plants on which all other trees depend. She explains how dying trees pass on the wealth to the next generation, transporting important minerals to young trees so they may continue to grow. When humans cut down “mother trees” with no awareness of these highly complex “tree societies” or the networks on which they feed, we are reducing the chances of survival for the entire forest
   “We didn't take any notice of it.” Simard says sadly. “Dying trees move nutrition into the young trees before dying, but we never give them chance.” If we could put across the message to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future.

下列选项中能正确反映唯物主义三种基本形态演进顺序的是（    ）

①万物在概念中运动

②运动是原子的结合和分离在空间位置的变化所造成的

③天地合气，万物自生

④人类社会发展是一个自然历史过程

长征是人类历史上的伟大壮举，是一座让中国人民世代铭记的历史丰碑。长征历时之长、行程之远、敌我力量之悬殊、自然环境之恶劣，创造了中外历史的奇迹，创造了人类战争史上的奇迹，更为我们留下了伟大的长征精神。这一精神（    ）

①是激励中华民族紧密团结的巨大物质力量

②是中华民族自强不息民族品格的集中展示

③是以爱国主义为核心的民族精神的最高体现

④是对伟大的时代精神的丰富发展和生动诠释