题目内容
Don't move the things in the room. Just ________.
- A.leave them where they are
- B.make them where they are
- C.leave them in the place they are
- D.keep them the same
Lichens (地衣) are difficult to see. They don’t move. They often mix into the living place. You might not even recognize one if you are looking right at it.
Lichens live on rocks, branches, houses, and even metal street signs. You can find these colorful organisms (微生物) almost everywhere — from deserts to rainforests, and from Antarctica to Africa. They’ve traveled in outer space, and some scientists think there might even be lichens on Mars.
What you probably don’t realize is that a lichen is more than a single thing. It includes two different types of living organisms: a fungus (菌类) and an alga (藻类). Neither of these organisms is a plant, so the lichen isn’t a plant either.
Through photosynthesis (光合作用), the alga gets the sun’s energy to make food for the fungus, which is the place for the alga to live in. However, the alga cannot leave the fungus.
Around the world, scientists have found tens of thousands of types of lichens. Many may not even have been discovered yet. As scientists continue to find new kinds of lichens, they are also working to understand how they are connected to one another. By putting together a lichen family tree, they hope to understand why so many different types of lichens have grown in so many places around the world.
Many researchers are trying to understand basic facts about the organisms and their connections. Researchers are also using lichens to examine the health of the environment.
【小题1】What do we know about lichens according to the passage?
A.They will die if they leave Earth. |
B.There are more lichens than plants on Earth. |
C.They look similar to the environment around them. |
D.They are too small to be easily seen by people. |
A.The way lichens live. |
B.The natural environment of lichens. |
C.The way lichens work as organisms. |
D.The family tree of lichens. |
A.To understand basic facts about them. |
B.To creat a lichen family tree. |
C.To understand how lichens are related to each other. |
D.To understand why lichens can live in different places. |
A.lichens can be used to better understand the environment |
B.lichens don’t have any differences in colors or sizes |
C.lichens don’t use photosynthesis like a green plant |
D.scientists have discovered every kind of lichen |
It was a Sunday morning, and I was in a terrible mood. Two of my friends had gone to the movies the night before and hadn’t invited me. I was in my room thinking of ways to make them sorry when my father came in. “Want to go for a ride, today, Beck? It’s a beautiful day.”
“No! Leave me alone!” Those were the last words I said to him that morning.
My friends called and invited me to go to the mall with them a few hours later. I forgot to be mad at them and went with them. I came home to find a note on the table. My mother put it where I would be sure to see it. “Dad has had an accident. Please meet us at Highland Park Hospital”.
When I reached the hospital, my mother came out and told me my father’s injuries were extensive. “Your father told the driver to leave him alone and just call 911, thank God! If he had moved Daddy, there’s no telling what might have happened. A broken rib(肋骨) might have pierced(穿透) a lung....”
My mother may have said more, but I didn’t hear. I didn’t hear anything except those terrible words: Leave me alone. My dad said them to save himself from being hurt more. How much had I hurt him when I hurled those words at him earlier in the day?
It was several days later that he was finally able to have a conversation. I held his hand gently, afraid of hurting him.
“Daddy... I am so sorry....”
“It’s okay, sweetheart. I’ll be okay.”
“No,” I said, “I mean about what I said to you that day. You know, that morning?”
My father could no more tell a lie than he could fly. He looked at me and said, “Sweetheart, I don’t remember anything about that day, not before, during or after the accident. I remember kissing you goodnight the night before, though.” He managed a weak smile.
My English teacher once told me that words have immeasurable power. They can hurt or they can heal. And we all have the power to choose our words. I intend to do that very carefully from now on.
【小题1】The author was in bad mood that morning because _______.
A.his father had a terrible accident |
B.he couldn’t drive to the mall with his friends |
C.his friends hadn’t invited him to the cinema |
D.his father didn’t allow him to go out with his friends |
A.Because he didn’t go along with his father. |
B.Because he was rude to his father that morning. |
C.Because he failed to come earlier after the accident. |
D.Because he couldn’t look after his father in the hospital. |
A.he had a poor memory |
B.he didn’t want to forgive his son |
C.he just wanted to comfort his son |
D.he lost his memory after the accident |
A.Don’t treat your parents badly. |
B.Don’t hurt others with rude words. |
C.Don’t move the injured in an accident. |
D.Don’t be angry with friends at small things. |