完形填空（每小题1.5分，共30分）
It was a normal summer night, humidity（潮湿）hung in the thick air. The only sound was my sister’s heavy __36__ from the bed next to me.
I couldn’t go to _37__, partly because of my cold and partly because of my __38__ for the next day. My mum had said that tomorrow was going to be a __39__ .
Sweat stuck to my aching body. Finally, I gathered enough __40__ to sit up. I looked out of my small window into the night. There was a big bright __41__ hanging in the sky, giving off a magic glow.
My sister turned over as though she was as light as air. Why could she sleep soundly? Why wasn’t she __42__ too? Did she know about tomorrow?
I couldn’t stand the __43__ anymore, so I did what I always do to make myself feel better. I went to the __44__ and picked up my toothbrush and toothpaste. Pouring the red paste onto the brush, I cleaned back and forth, up and down.
Then I walked downstairs to look for some __45__of movement, some life. Gladiator, my cat, __46__ me as he meowed（猫叫）his sad song. He was on the old orange couch （长沙发）, sitting up on his front legs, 47 something to happen. He looked at me as if to say, “I’m __48__, pet me. I need a good hug.” Even the couch begged me to sit on it.
In one movement I settled down onto the soft 49 . This couch represented my birth, my parents’ marriage, and hundreds of other little __50__.
As I held Gladiator, my heart started beating heavily. My mind was __51__ with questions: What’s life? Am I really alive? Are you listening to me? Every time I moved my hand down Gladiator’s body, I had a __52__ thought; each touch sang a different song.
I forgot all about the __53__ and the next day’s surprise. The __54__ was so full of warmth and silence that I sank into its arms. Falling asleep with the big cat in my arms, I felt all my worries __55__ move away.

We experience different forms of the Sun’s energy every day. We can see its light and feel its warmth. The Sun is the major source of evaporation (蒸发) of water from the oceans and lakes. Sunlight also provides the energy used by green plants to make their own food. These green plants then provide food for all organisms (生物) on the Earth.
Much of the energy that comes from the Sun never reaches the Earth’s surface. It is either reflected or absorbed by the gases in the upper atmosphere. Of the energy that reaches the lower atmosphere, 30% is reflected by clouds or the Earth’s surface. The remaining 70% warms the surface of the planet, causes water to evaporate, and provides energy for the water cycle and weather. Only a tiny part, approximately 0.023%, is actually used by green plants to produce food.
Many gases found in the atmosphere actually reflect heat energy escaping from the Earth’s surface back to the Earth. These gases act like the glass of a greenhouse in that they allow energy from the Sun to enter but prevent energy from leaving. They are therefore called greenhouse gases.
When sunlight strikes an object, some of the energy is absorbed and some is reflected. The amount reflected depends on the surface. For example, you’ve probably noticed how bright snow is when sunlight falls on it. Snow reflects most of the energy from the Sun, so it contributes to the low temperatures of winter. Dark-coloured surfaces, such as dark soil or forest, absorb more energy and help warm the surrounding air.
【小题1】According to the passage, the root cause for weather changes on the Earth is ______.

A．the atmosphere surrounding the Earth	B．water from oceans and lakes
C．energy from the Sun	D．greenhouse gases in the sky

【小题2】Only a small part of the Sun’s energy reaches the Earth’s surface because most of it _______________.

A．absorbed by the clouds in the lower atmosphere

B．reflected by the gases in the upper atmosphere

C．lost in the upper and lower atmosphere

D．used to evaporate water from the oceans and lakes

【小题3】We learn from the passage that _______________.

A．all living things on the Earth depend on the Sun for their food

B．a forest looks dark in winter because it absorbs solar energy

C．only 0.023% of the energy from the Sun is made use of on the Earth

D．greenhouse gases allow heat energy to escape from the Earth’s surface

We experience different forms of the Sun’s energy every day. We can see its light and feel its warmth. The Sun is the major source of energy for our planet. It causes the evaporation (蒸发) of water from the oceans and lakes. Sunlight also provides the energy used by green plants to make their own food. These green plants then provide food for all organisms(生物) on the Earth.
Much of the energy that comes from the Sun never reaches the Earth’s surface. It is either reflected or absorbed by the gases in the upper atmosphere. Of the energy that reaches the lower atmosphere,30% is reflected by clouds or the Earth’s surface. The remaining 70% warms the surface of the planet, causes water to evaporate, and provides energy for the water cycle and weather. Only a tiny part, approximately 0.023%, is actually used by green plants to produce food.
Many gases found in the atmosphere actually reflect heat energy escaping from the Earth’s surface back to the Earth. These gases act like the glass of a greenhouse in that they allow energy from the Sun to enter but prevent energy from leaving. They are therefore called greenhouse gases.
When sunlight strikes an object, some of the energy is absorbed and some is reflected. The amount reflected depends on the surface. For example, you’ve probably noticed how bright snow is when sunlight falls on it. Snow reflects most of the energy from the Sun, so it contributes to the low temperatures of winter. Dark-coloured surfaces, such as dark soil or forest, absorb more energy and help warm the surrounding air.
【小题1】According to the passage, the root( 根本的) cause for weather changes on the Earth is .

A．the atmosphere surrounding the Earth

B．water from oceans and lakes

C．energy from the Sun

D．greenhouse gases in the sky

【小题2】Only a small part of the Sun’s energy reaches the Earth’s surface because most of it is .