Read the passage carefully, then choose the best answer for each question.
THE DISEASE DETECTIVE
Six children were in the hospital. They were very sick, but the doctors didn't know what to do. They called Dr. Richard Besser, an expert on strange illnesses. Dr. Besser knew just what to do.
Finding a Cause
First, Dr. Besser needed to find the cause of the illness. He used a microscope to look for germs like bacteria in the children's bodies. Dr. Besser found that all the children had a strain of the bacteria E. coli. Then he looked at the bacteria's DNA. The DNA showed him that this strain of E. coli was dangerous to humans.
Where Did It Come From?
Dr. Besser knew E. coli could move from animals to humans. Perhaps the children had touched animals that carried the bacteria? Besser found other E. coli cases in the area where the children lived. But it wasn't enough.
Besser then made a list of what the sick children had eaten. They had all eaten cheese, apple juice, and fish. He then made a list of what healthy children in the area had eaten, and compared his lists. They had eaten the cheese and fish, but not the apple juice.
Case Closed
Besser went to where the apple juice was made. He saw that there were animals around the apple trees, and he saw the workers using dirty apples that had fallen on the ground. More importantly, he saw that the apples were not washed before the juice was made, and that the juice was not heated. Doing these things would kill the bacteria. Besser then knew it was the apple juice that made the children sick.
Besser's E. coli case has a happy ending. The children got better. And what Besser learned that day now helps keep others safe.
Which of the following is NOT true about E. coli?
A.It’s a kind of plant.
B.It can make people sick.
C.It moves from animals to people.
D.It’s dangerous to humans.

Read the passage carefully, then choose the best answer for each question.
THE DISEASE DETECTIVE
Six children were in the hospital. They were very sick, but the doctors didn't know what to do. They called Dr. Richard Besser, an expert on strange illnesses. Dr. Besser knew just what to do.
Finding a Cause
First, Dr. Besser needed to find the cause of the illness. He used a microscope to look for germs like bacteria in the children's bodies. Dr. Besser found that all the children had a strain of the bacteria E. coli. Then he looked at the bacteria's DNA. The DNA showed him that this strain of E. coli was dangerous to humans.
Where Did It Come From?
Dr. Besser knew E. coli could move from animals to humans. Perhaps the children had touched animals that carried the bacteria? Besser found other E. coli cases in the area where the children lived. But it wasn't enough.
Besser then made a list of what the sick children had eaten. They had all eaten cheese, apple juice, and fish. He then made a list of what healthy children in the area had eaten, and compared his lists. They had eaten the cheese and fish, but not the apple juice.
Case Closed
Besser went to where the apple juice was made. He saw that there were animals around the apple trees, and he saw the workers using dirty apples that had fallen on the ground. More importantly, he saw that the apples were not washed before the juice was made, and that the juice was not heated. Doing these things would kill the bacteria. Besser then knew it was the apple juice that made the children sick.
Besser's E. coli case has a happy ending. The children got better. And what Besser learned that day now helps keep others safe.
What made the children sick?
A.old fish
B.dirty apples
C.smelly cheese
D.None of these things

Read the passage carefully, then choose the best answer for each question.
THE DISEASE DETECTIVE
Six children were in the hospital. They were very sick, but the doctors didn't know what to do. They called Dr. Richard Besser, an expert on strange illnesses. Dr. Besser knew just what to do.
Finding a Cause
First, Dr. Besser needed to find the cause of the illness. He used a microscope to look for germs like bacteria in the children's bodies. Dr. Besser found that all the children had a strain of the bacteria E. coli. Then he looked at the bacteria's DNA. The DNA showed him that this strain of E. coli was dangerous to humans.
Where Did It Come From?
Dr. Besser knew E. coli could move from animals to humans. Perhaps the children had touched animals that carried the bacteria? Besser found other E. coli cases in the area where the children lived. But it wasn't enough.
Besser then made a list of what the sick children had eaten. They had all eaten cheese, apple juice, and fish. He then made a list of what healthy children in the area had eaten, and compared his lists. They had eaten the cheese and fish, but not the apple juice.
Case Closed
Besser went to where the apple juice was made. He saw that there were animals around the apple trees, and he saw the workers using dirty apples that had fallen on the ground. More importantly, he saw that the apples were not washed before the juice was made, and that the juice was not heated. Doing these things would kill the bacteria. Besser then knew it was the apple juice that made the children sick.
Besser's E. coli case has a happy ending. The children got better. And what Besser learned that day now helps keep others safe.
What advice would Dr. Besser probably agree with?
A.Never drink apple juice from a supermarket. You should make it yourself.
B.Stay away from animals that live near trees. They will make you sick.
C.Don’t eat fruit from the ground. Wash the fruit before you eat it.
D.Heat apple juice after you buy it from a supermarket. This helps kill the bacteria.

Read the passage carefully, then choose the best answer for each question.
THE DISEASE DETECTIVE
Six children were in the hospital. They were very sick, but the doctors didn't know what to do. They called Dr. Richard Besser, an expert on strange illnesses. Dr. Besser knew just what to do.
Finding a Cause
First, Dr. Besser needed to find the cause of the illness. He used a microscope to look for germs like bacteria in the children's bodies. Dr. Besser found that all the children had a strain of the bacteria E. coli. Then he looked at the bacteria's DNA. The DNA showed him that this strain of E. coli was dangerous to humans.
Where Did It Come From?
Dr. Besser knew E. coli could move from animals to humans. Perhaps the children had touched animals that carried the bacteria? Besser found other E. coli cases in the area where the children lived. But it wasn't enough.
Besser then made a list of what the sick children had eaten. They had all eaten cheese, apple juice, and fish. He then made a list of what healthy children in the area had eaten, and compared his lists. They had eaten the cheese and fish, but not the apple juice.
Case Closed
Besser went to where the apple juice was made. He saw that there were animals around the apple trees, and he saw the workers using dirty apples that had fallen on the ground. More importantly, he saw that the apples were not washed before the juice was made, and that the juice was not heated. Doing these things would kill the bacteria. Besser then knew it was the apple juice that made the children sick.
Besser's E. coli case has a happy ending. The children got better. And what Besser learned that day now helps keep others safe.
Another title for this passage could be_____.
A.Good vs. Bad Bacteria
B.Looking for Answers
C.A Death at the Hospital
D.Apple juice makes Children sick

Choose A, B, C or D to complete this passage:
These days it is impossible to open a newspaper (1)_____ reading about the damage we are doing to the environment. The Earth is being threatened (2)______ the future looks bad. (3)______ can each of us do?
We cannot clean (4)______ our polluted rivers and seas overnight. Nor can we stop the (5)______ of plants and animals. But we can stop adding to the problem (6)______ scientists look for answers.
It may not be easy to change your lifestyle (7)_______ but some steps are easy to take: cut down the amount of driving you do, or use as little plastic as possible. It is also easy to save (8)_____ , which also (9)_______ household bills. We must all make a personal decision to work for the future of our planet if we want to ensure a better world (10)_______ our grandchildren.
____(10)
A.from
B.to
C.in
D.for

Choose A, B, C or D to complete this passage:
These days it is impossible to open a newspaper (1)_____ reading about the damage we are doing to the environment. The Earth is being threatened (2)______ the future looks bad. (3)______ can each of us do?
We cannot clean (4)______ our polluted rivers and seas overnight. Nor can we stop the (5)______ of plants and animals. But we can stop adding to the problem (6)______ scientists look for answers.
It may not be easy to change your lifestyle (7)_______ but some steps are easy to take: cut down the amount of driving you do, or use as little plastic as possible. It is also easy to save (8)_____ , which also (9)_______ household bills. We must all make a personal decision to work for the future of our planet if we want to ensure a better world (10)_______ our grandchildren.
_____(8)
A.energy
B.money
C.health
D.water

Choose A, B, C or D to complete this passage:
These days it is impossible to open a newspaper (1)_____ reading about the damage we are doing to the environment. The Earth is being threatened (2)______ the future looks bad. (3)______ can each of us do?
We cannot clean (4)______ our polluted rivers and seas overnight. Nor can we stop the (5)______ of plants and animals. But we can stop adding to the problem (6)______ scientists look for answers.
It may not be easy to change your lifestyle (7)_______ but some steps are easy to take: cut down the amount of driving you do, or use as little plastic as possible. It is also easy to save (8)_____ , which also (9)_______ household bills. We must all make a personal decision to work for the future of our planet if we want to ensure a better world (10)_______ our grandchildren.
_____(7)
A.complete
B.completeness
C.completely
D.to complete

Choose A, B, C or D to complete this passage:
These days it is impossible to open a newspaper (1)_____ reading about the damage we are doing to the environment. The Earth is being threatened (2)______ the future looks bad. (3)______ can each of us do?
We cannot clean (4)______ our polluted rivers and seas overnight. Nor can we stop the (5)______ of plants and animals. But we can stop adding to the problem (6)______ scientists look for answers.
It may not be easy to change your lifestyle (7)_______ but some steps are easy to take: cut down the amount of driving you do, or use as little plastic as possible. It is also easy to save (8)_____ , which also (9)_______ household bills. We must all make a personal decision to work for the future of our planet if we want to ensure a better world (10)_______ our grandchildren.
___(6)
A.while
B.when
C.within
D.during

Choose A, B, C or D to complete this passage:
These days it is impossible to open a newspaper (1)_____ reading about the damage we are doing to the environment. The Earth is being threatened (2)______ the future looks bad. (3)______ can each of us do?
We cannot clean (4)______ our polluted rivers and seas overnight. Nor can we stop the (5)______ of plants and animals. But we can stop adding to the problem (6)______ scientists look for answers.
It may not be easy to change your lifestyle (7)_______ but some steps are easy to take: cut down the amount of driving you do, or use as little plastic as possible. It is also easy to save (8)_____ , which also (9)_______ household bills. We must all make a personal decision to work for the future of our planet if we want to ensure a better world (10)_______ our grandchildren.
_____(3)
A.What
B.Where
C.When
D.Why

Read the passage carefully, then choose the best answer for each question.
TRAINING GRIZZLIES
Russell Chadwick remembers the summer he turned 16. It was the summer he wrestled with grizzly bears!
It all started when Russell worked as an animal trainer at Wasatch Rocky Mountain Wildlife. Wasatch Wildlife is an animal-training center in Utah, in the U.S. At the center, Doug and Lynne Seus train animals to be actors.
Doug and Lynne asked Russell to help take care of two four-month-old grizzly bear cubs named Little Bart and Honey Bump. That's more difficult than it sounds. Baby bears are big!
Russell's job was to play with the bears. This teaches them to be comfortable with humans. Playing with the bears was fun, but Russell had to remember that bears are wild animals.
"One time, Honey Bump took a bite out of my back, and I had to wrestle her to the ground. But it also showed me how smart she is. She knew she had done something wrong and 'apologized' by putting her head in my lap."Russell found that bears can understand more than just "sit" and "stay." For example, when Russell said "Peekaboo!" to one baby bear, he covered his eyes with his paws, just like a human child.
Russell didn't get much money for doing this job. But he enjoyed the experience. He also learned a lot from it. When you've wrestled with a grizzly bear, things like work and exams don't seem so difficult anymore!
What is the main idea of the last paragraph?
A.Tests and homework are good ways to get ready for a summer job.
B.Russell Chadwick’s experience helped him get ready for other things in his life.
C.Russell Chadwick didn’t get enough money.
D.Russell Chadwick managed to wrestle with a grizzly bear.