There---- seven dogs（）

A、It is sometimes referred to by the common name "oriental liver fluke".

B、A pair of large,lobulated testes with seven branches is in the posterior 1/3 of the animal.

C、The adult worm resides in the bile ducts of the definitive host and isrelatively small,10 to 25 mm long by 3 to 5 mm wide.

D、A characteristic knob is at the abopercular end of the egg shell.

E、The definitive hosts include humans,dogs,cats,pigs,and rodents.

Study Says Dogs Can Smell Cancer

Dogs are known for their sense of smell. They can find missing people and things like bombs and illegal drugs. Now a study suggests that the animal known as man's best friend can even find bladder(膀胱)cancer.

Cancer cells are thought to produce chemicals with unusual odors(气味). Researchers think dogs have the ability to smell these odors, even in very small amounts, in urine(尿). The sense of smell in dogs is thousands of times better than in humans.

The study follows reports of cases where, for example, a dog showed great interest in a growth on the let of its owner. The mole(痣)was later found to be skin cancer.

Carolyn Willis led a team of researchers at Amersham Hospital in England. They trained different kinds of dogs for the experiment. The study involved urine collected from bladder cancer patients, from people with other diseases and from healthy people.

Each dog was tested eight times. In each test there were seven samples for the dogs to smell. The dog was supposed to signal the one from a bladder cancer patient by lying down next to it.

Two cocker spaniels(短腿长毛垂耳小猎犬)were correct fifty-six percent of the time. But the scientists reported an average success rate of forty-one percent.

As a group, the study found that the dogs chose the correct sample twenty-two out of fifty-four times. That is almost three times more often than would be expected by chance alone.

The British Medical Journal published the research. In all, thirty-six bladder cancer patients and one hundred and eight other people took part.

During training, all the dogs reportedly even identified a cancer in a person who had tested healthy before the study. Doctors found a growth on the person's right kidney(肾).

Bladder cancer is the ninth most common cancer worldwide. The International Agency for Research on Cancer says this disease kills more than one hundred thousand people each year. Doctors say cigarette smoking is the leading cause of bladder cancer.

The experiment was conducted in a

A．private home.

B．training school.

C．hospital.

D．police station.

Study Says Dogs Can Smell Cancer

Dogs are knowrn for their sense of smell. They can find missing people and things like bombs and illegal drugs. Now a study suggests that the animal known as man&39;s best friend can even find bladder(膀胱) cancer.

Cancer cells are thought to produce chemicals with unusual odors(气味). Researchers think dogs have the abilit)to smell these odors, even in very small amounts, in urine(尿). The sense of smell in dogs is thousands of times better than in humans.

The study follows reports of cases where, for example, a dog showed great interest in a growth on the leg of its owner. The mole(痣)was later found to be skin cancer.

Carolyn Willis ted a team of researchers at Amersham Hospital in England. They trained different kinds of dogs for the experiment. The study involved urine collected from bladder cancer patients ,from people with other diseases and from healthy people.

Each dog was tested eight times. In each test there were seven samples for the dogs to smell.

The dog was supposed to signal the one from a bladder cancer patient by lying down next to it.

Two cocker spaniels(短腿长毛垂耳小猎犬) were correct fifty-six percent of the time. But the scieatists reported an average success rate of forty-one percent.

As a group, the study found that the dogs chose the correct sample twenty-two out of fifty-four times. That is almost three times more often than would be expected by chance alone.

The British Medical Journal published the research. In all, thirty-six bladder cancer patients and one hundred and eight other people took part.

During training, all the dogs reportedly even identified a cancer in a person who had tested healthy before the study. Doctors found a growth on the person&39;s right kidney(肾).

Bladder cancer is the ninth most common cancer worldwide. The International Agency for Re-search on Cancer says this disease kills more than one hundred thousand people each year. Doctors say cigarette smoking is the leading cause of bladder cancer.

The experiment was conducted in a __________. 查看材料

A.police station

B.hospital

C.training school

D.private home

ssing people and things like bombs and illegal drugs.Now a study suggests that the animal known as man’s best friend can even find bladder(膀胱)cancer.

Cancer cells are thought to produce chemicals with unusual odors(气味).Researchers think dogs have the ability to smell these odors,even in very small amounts,in urine(尿).The sense of smell in dogs is thousands of times better than in humans.

The study follows reports of cases where,for example,a dog showed great interest in a growth on the let of its owner.The mole(痣)was later found to be skin cancer.

Carolyn Willis led a team of researchers at Amersham Hospital in England.They trained different kinds of dogs for the experiment.The study involved urine collected from bladder cancer patients,from people with other diseases and from healthy people.

Each dog was tested eight times.In each test there were seven samples for the dogs to smell.The dog was supposed to signal the one from a bladder cancer patient by lying down next to it.

Two cocker spaniels(短腿长毛垂耳小猎犬)were correct fifty-six percent of the time.But the scientists reported an average success rate of forty-one percent.

As a group,the study found that the dogs chose the correct sample twenty-two out of fifyt-four times.That is almost three times more often than would be expected by chance alone.

The British Medical Journal published the research.In all,thirty-six bladder cancer patients and one hundred and eight other people took part.

During training,all the dogs reportedly even identified a cancer in a person who had tested healthy before the study.Doctors found a growth on the person’s right kidney(肾).

Bladder cancer is the ninth most common cancer worldwide.The International Agency for Research on Cancer says this disease kills more than one hundred thousand people each year.Doctors say cigarette smoking is the leading cause of bladder cancer.

第6题：The experiment was conducted in a

A．private home.

B．training school.

C．hospital.

D．police station.

回答题：

Study Says Dogs Can Smell Cancer

Dogs are knowrn for their sense of smell. They can find missing people and things like bombs and illegal drugs. Now a study suggests that the animal known as man&39;s best friend can even find bladder(膀胱) cancer.

Cancer cells are thought to produce chemicals with unusual odors(气味). Researchers think dogs have the abilit)to smell these odors, even in very small amounts, in urine(尿). The sense of smell in dogs is thousands of times better than in humans.

The study follows reports of cases where, for example, a dog showed great interest in a growth on the leg of its owner. The mole(痣)was later found to be skin cancer.

Carolyn Willis ted a team of researchers at Amersham Hospital in England. They trained different kinds of dogs for the experiment. The study involved urine collected from bladder cancer patients ,from people with other diseases and from healthy people.

Each dog was tested eight times. In each test there were seven samples for the dogs to smell.

The dog was supposed to signal the one from a bladder cancer patient by lying down next to it.

Two cocker spaniels(短腿长毛垂耳小猎犬) were correct fifty-six percent of the time. But the scieatists reported an average success rate of forty-one percent.

As a group, the study found that the dogs chose the correct sample twenty-two out of fifty-four times. That is almost three times more often than would be expected by chance alone.

The British Medical Journal published the research. In all, thirty-six bladder cancer patients and one hundred and eight other people took part.

During training, all the dogs reportedly even identified a cancer in a person who had tested healthy before the study. Doctors found a growth on the person&39;s right kidney(肾).

Bladder cancer is the ninth most common cancer worldwide. The International Agency for Re-search on Cancer says this disease kills more than one hundred thousand people each year. Doctors say cigarette smoking is the leading cause of bladder cancer.

The experiment was conducted in a __________. 查看材料

A.police station

B.hospital

C.training school

D.private home

Any suggestions？

M: Well, since everyone has enjoyed the last picnic very much, we can just copy it. How about picking up some hamburgers and hot dogs？

W: Okay, but how much hamburger meat are we going to need？ And hot dogs too？

M: Uh. How about three pounds of hamburger and a couple packages of hot dogs？

W: Oh, that's not going to be enough. Do you remember the last picnic we want on？ Your roommate, David, ate about ten hamburgers all by himself!

M: You're right. Let's see ahem nine pounds of hamburger meat and, uh..., seven packages of hot dogs.

W: And you'd better pick up some chicken for those who don't like hamburger or hot dogs.

M: Okay. How about five or six bags of potato chips？

W: Humm. Better make that eight or so.

M: Okay. What else？ Uh, we're going to need some soft drinks. How about ten of these big 2-litor bottles？

W: Sounds fine, but he sure to buy a variety of drinks.

M: Okay. And what about dessert？

W: Well, maybe we could ask Kathy to make a few cherry pies like she did last time.

M: I wouldn't mind that, but you know, she's been very busy working two jobs, so I'd hate to ask her. Hey, why don't you make some cookies？ You could ask Susan, the one that moved in across the street! I bet she'd be willing to help you!

(20)

A．Preparation for a celebration.

B．Preparation for a picnic.

C．Preparation for a festival.

D．Preparation for a family reunion.

听力原文：W: Dave. (19)I'm going to the supermarket to pick up food and drink for Saturday's picnic later. Any suggestions？

M: Well, (19)everyone has been talking about having a barbecue down by the river, so why don't you pick up some hamburger and hot dogs？

W: Okay, but how much hamburger meat are we going to need？ And hot dogs too？

M: Uh, I don't know. How about three pounds of hamburger and a couple packages of hot dogs？

W: Oh, that's not going to be enough. Do you remember the last picnic we went on？ Your roommate, Jim, ate about ten hamburgers by himself!

M: You're right. (20)Let's buy nine pounds of hamburger meat and seven packages of hot dogs then.

W: And you'd better pick up some chicken for those who don't like hamburgers or hot dogs.

M: Okay. How about five or six bags of potato chips？

W: Better make that eight or so.

M: Alright. Oh, and we're going to need some hamburger and hot dog buns. How about five packages a piece？ I think that sounds about right.

W: Yeah, you'd better pick up some mustard, catch up, and mayonnaise, too.

M: Okay. What else？ Uh, we're going to need some soft drinks. How about ten of those big 2-liter bottles？

W: Sounds tine, but be sure to buy a variety of drinks.

M: Okay. And what about dessert？

W: Well, maybe we could ask Kathy to make a few cherry pies as she did last time.

M: Well, I wouldn't mind that, but you know, she's been very busy working two jobs, so I'd hate to ask her. (21)OK, to be honest, I have broken up with her last week, and we haven't talked since then.

(20)

A．On Saturday by the lake.

B．On Saturday by the river.

C．On Sunday by the lake.

D．On Sunday by the sea.

The hippopotamus(河马), or hippo, lives in the hot part of Africa. __1__ humans, dogs, and whales, it is a mammal(哺乳动物). That is, its babies are born alive, and they drink milk from the mother's body.

The hippopotamus is a large grey animal with a big head and mouth. It __2__ four tons, or about 4,000 kilograms. Its stomach is seven meters long, and it eats only plants. It is a mammal, but it spends a lot of time in the water.

During the day, it sleeps beside a river or a lake. Sometimes it wakes up. Then it goes under the water to get some __3__ for food and never catches fish or hunts other animals. It can close its nose and stay under water for ten minutes. Its ears, eyes, and nose are high up on its head. It can stay with its body under the water and only its ears, eyes, and nose above the water. Then it can breathe the air.

At night, the hippo walks on the nearby land and looks for food. It never goes very __4__ the water.

A baby hippo often stands on its mother's __5__-- the part of the body between the neck and legs. The mother looks for food underwater. The baby rides with a sure footing on her mother above the water.

1)、A.far from

B.weighs

C.plants

D.Like

E.back

2)、A.far from

B.weighs

C.plants

D.Like

E.back

3)、A.far from

B.weighs

C.plants

D.Like

E.back

4)、A.far from

B.weighs

C.plants

D.Like

E.back

5)、A.far from

B.weighs

C.plants

D.Like

E.back

cnic. Any suggestions？

M: Well, everyone has been talking about having a barbecue down by the river, so why don't you pick up some hamburger and hot dogs？

W: Okay, but how much hamburger are we going to need？ And hot dogs too？

M: Uh, I don't know. How about three pounds of hamburger and a couple packages of hot dogs？

W: Oh, that's not going to be enough. Do you remember the last picnic we went on？ Your roommate, Jim, ate about ten hamburgers by himself!

M: You're right. Let's see. I'd better write this down. Uh, let's see about nine pounds of hamburger meat and, uh .... seven packages of hot dogs.

W: And you'd better pick up some chicken for those who don't like hamburger or hot dogs.

M: Okay. How about five or six bags of potato chips？

W: Humm. Better make that eight or so.

M: All right. Oh, and we're gonna need some hamburger and hot dog buns, How about five packages a piece？ I think that sounds about right.

W: Yeah, you'd better pick up some mustard, catchup, and mayonnaise too.

M: Okay. What else？ Uh, we're gonna need some soft drinks. How about ten of those big 2-liter bottles？

W: Sounds fine, but be sure to buy a variety of drinks.

M: Okay. And what about dessert？

W: Well, maybe we could ask Kathy to make a few cherry pies like she did last time.

M: Well, I heard that she's been very busy working two jobs, so we'd better not ask her, uh... Hey, why don't you whip up some of your oatmeal cookies？ Hey, you could even ask, uh... what's her name.., yeah that new girl, Susan, the one that moved in across the street! I bet she'd be willing to help you !

W: Nah, I don't think I could ask her, I haven't got a phone number. Anyway, I can try myself.

(20)

A．At a park.

B．At the beach.

C．At Dave's house.

D．By a river.