There are no days when men and women couldn't associate with each other. When we are asked if boys and girls can associate with each other, most of us will say, "Yes, of course. Why not? " If we want to deal with the association between boys and girls properly, here are some tips for you to follow. 1)Keep a normal and healthy state of mind . Our schools and classes are made up of boys and girls. It is very natural for the boys and girls to contact each other and build up the friendship with the students of the other sex. Generally speaking, we should broaden the circle of the association. We should make as many friends as possible. We should have more friends of the other sex instead of one or two. We should contact the students in public, not in secret. 2)Contact students of the other sex warmly, generously and sincerely. Don't be too nervous or too shy in contact with a person of the other sex, because no one likes a person who is too shy to say a word. 3)Don't fall into the ditch of early love. The boys and the girls at adolescence are rich in feelings and full of imagination . They are easy to regard the friendship as a sign of love and fall in love with each other at an early age. In my opinion, early love is a green apple that can't be eaten. An apple won't taste sweet until it is fully ripe . Do keep out of early love. We should contact the students of the other sex in the following ways EXCEPT _ . A) with a good state of mind B) in public C) in secret D) warmly and generously
C
Now I would like to talk to you about your final exam. The exam will be held next Thursday, the last day of the exam week. Remember to bring two or three pens in case they run out of ink. Unlike the midterm exam, this test will not include multiple-choice questions, it will contain entirely of essays . You will have to answer three of the five essay questions. The exam will be comprehensive , which means you will have to go over all of the subject matters we learnt in class this term. I would suggest you review your midterm exam as well as textbooks and your class notes. The research project will count as 20% and the midterm exam 30%. I will be in my office almost all day next Tuesday. If you run into any problems, please drop in. Good luck to you and I will see you on Tuesday. When will the final exam be held? A) Next Tuesday. B) Next Wednesday. C) Next Thursday D) Next Friday
C
Q: When I was six, dad brought home a dog one day, who was called "Brownie". My brothers and I all loved Brownie and did different things with her. One of us would walk her, another would feed her, then there were baths, playing catch and many other games. Brownie, in return, loved each other and every one of us. One thing that most touched my heart was that she would go to whoever was sick and just be with them. We always felt better when she was around. One day , as I was getting her food, she chewed up one of dad's shoes, which had to be thrown away in the end. I knew dad would be mad and I had to let her know what she did was wrong. When I looked at her and said, "Bad girl," she looked down at the ground and then went and hid. I saw a tear in her eyes. Brownie turned out to be more than just our family pet. She went everywhere with us. People would stop and ask if they could pet her. Of course she'd let anyone pet her. She was just the most lovable dog. There were many times when we'd be out walking and a small child would come over and pull on her hair. She never barked or tried to get away. Funny thing is she would smile. This frightened people because they thought she was showing her teeth. Far from the truth, she loved everyone. What would Brownie do when someone was ill in the family? A) Look at them sadly. B) Keep them company. C) Play games with them. D) Touch them gently.
A: B
When an ant dies, other ants move the dead insect out. Sometimes, the dead ant get moved away very soon--within an hour of dying. This behavior is interesting to scientists, who wonder how ants know for sure--and so soon--that another ant is dead. One scientist recently came up with a way to explain this ant behavior. Dong-Hwan Choe is a biologist. Choe found that Argentine ants have a chemical on the outside of their bodies that signals to other ants, "I'm dead--take me away." But there's a _ to Choe's discovery. Choe says that the living ants--not just the dead ones--have this death chemical. In other words, while an ant crawls around, perhaps in a picnic or home, it's telling other ants that it's dead. What keeps ants from dragging away the living ants?Choe found that Argentine ants have two additional chemicals on their bodies, and these tell nearby ants something like, "Wait--I'm not dead yet." So Choe's research turned up two sets of chemical signals in ants: one says, "I'm dead," and the other set says, "I'm not dead yet." Other scientists have tried to figure out how ants know when another ant is dead. If an ant is knocked unconscious, for example, other ants leave it alone until it wakes up. That means ants know that unmoving ants can still be alive. Choe suspects that when an Argentine ant dies, the chemical that says "Wait-I'm not dead yet" quickly goes away. Once that chemical is gone, only the one that says "I'm dead" is left. "It's because the dead ant no longer smells like a living ant that it gets carried to the graveyard, not because its body releases new unique chemicals after death," said Choe. When other ants detect the "dead" chemical without the "not dead yet" chemical, they drag away the body. Understanding this behavior may help scientists figure out how to stop Argentine ants from invading new places and causing problems. Choe would like to find a way to use the newly discovered chemicals to spread ant killer to Argentine ant nests. The ants' removal behavior is important to the... The result of the research can be used to _ . A) kill troublesome pests B) solve the problem of endangered species C) prevent further expansion of the ants' territory D) keep the balance of nature
C