[简答题]Outline:
1. We may have some bad habits that we are ashamed of.
2. To get rid of a bad habit, we have, first of all, to come to realize how bad it really is.
3. To get rid of a bad habit, we also need courage and determination.
4. However, we should never stop trying to get rid of bad habits.

[填空题]I have heard some bad news which（）(disturb) me very much.

[填空题]I have heard some bad news which ______ (disturb) me very much.

[单项选择]Caffeinated coffee may have an undeserved bad rap. A new study shows the decaffeinated variety may have harmful heart effects. The study showed that people who drank decaf had higher levels of a protein linked to heart disease risk compared with those who drank caffeinated coffee or no coffee. "But the differences were fairly small and there’s probably no health threat from drinking a cup or two of any type of coffee a day," says researcher H. Robert Superko, MD. The research is the latest entry into a long line of scientific studies looking at whether coffee drinking can lead to heart disease.
The participants were given premeasured bags of coffee to make in their coffee machines provided by researchers, They agreed to drink it black--no cream or sugar al-lowed. And they agreed to periodic blood tests so the researchers could keep track of exactly how much caffeine they drank. The 187 volunteers were assigned to one of three groups: no coffee, three to six cups a day of caffeinat
A. posing an example
B. justifying an assumption
C. making a comparison
D. explaining a phenomenon

[填空题]Although we still have some problems to face, by and large our work has been successful.

[单项选择]All of US have felt pain．We have cut ourselves．We have been burned．Or we have had headaches．Some of us suffer pain rarely pain rarely. ___________ (46) Pain can take complete control of our body and mind，making it impossible to move and even to think．Yet we need pain．Without it，we would not know．1f we have hurt ourselves．It is our body’s warning system. ___________ (47) Pain is the most common reason we go to a doctor It is the most common reason we take medicines．Until recently，however, most doctors knew of only a few drugs that stopped some pains ___________ (48)But new knowledge about the process of pain is helping them to control pain better． Scientists have learned that the sense of pain is made up of both chemical and electrical signals. ___________ (49)Scientists also have learned that the nervous system sends two different kinds of pain messages to the brain：one very fast，the other slow．The first message is the warning signal．It moves at a speed of 30 meters a second．In les