Imagine your body is like the house you live in．Every day, your family creates rubbish．The rubbish builds up until it is put out for the weekly garbage collection．

         Now, say you put three bags of garbage out．but because one of the collectors was away sick, only two bags are collected．You take the leftover bag inside to be put out again next week．The following week you put on another three bags．plus the leftover bag from last week．But again, only two bags are collected．Imagine this cycle is repeated over the following weeks．

         This is a simple description of what happens to your body when your kidneys （肾脏） don't work efficiently．Your body is nol thoroughly emptied of waste products．Other areas of the bodv such as blood pressure and red blood cell production are affected and the insidious process that may lead to kidney failure begins．

         It's not uncommon for people to lose up to 90% of their kidney function before deveoping any symptoms．There may be no warning signs. This makes early detection （诊查）difficult．

         Kidney's main job is to remote toxins（毒素） and unwanted water from our blood．Every day our kidneys clean an average of 200 litres of blood．Kidney failure may be a gradual and silent process, going unnoticed because there is no apparent pain．

         Research shows that more than 35% of the patients requiring dialysis （透析）do not see a kidney specialist before they have to do so．Some risk factors for kidney disease such as age and genetic make up are out of our control; however, some changes in lifestyle may help prevent kidney damage．Two major risk factors for kidney disease, diabetes （糖尿病）and high blood pressure, have been on the rise over the last few decades．Both conditions are chiefly affected by being overweight and not getting enough exercises, which are the potential risk factors for the kidney disease．

66．The author gives the example of the house we live in to indicate that ______．

         A．it doesn't matter much if the waste in our body is not emptied in time

         B．our body will not produce any waste if our kidneys work efficiently

         C．it's important for our body to empty the waste in time every day

         D．it's safe and harmless for our body to keep some waste

67．The underlined word “insidious” in Paragrap 3 means          .

         A．smooth and safe                 B．apparent and fast

         C．gradual and unnoticed       D．long and painful

68．We can infer that when we find some symptoms related to our kidneys,          .

         A．the kidney failure begins

         B．the kidneys can still work properly

         C．we have lost about 10% of kidney function

         D．the kidneys may have been seriously damaged

69．How many risk factors of kidney disease are mentioned in the passage?

         A．Six.     B．Five.  C．Four.  D．Two.

70．Which of the following helps prevent kidney damage most effectively?

         A．Go to see a kidney specialist shortly before dialysis starts.

         B．Take enough exercise and make early detection of kidney disease.

         C．Try to keep low blood pressure and a stable lifestyle.

         D．Go to hospital whenever you find any warning signs.

C
Can you imagine a catfish bigger than a boy? There are more than 1，000 kinds of catfish；28 species are found in the United States' lakes and rivers． This huge family has some mighty strange members. Let's meet a few.
Walking catfish．Nature's feisty little catfish，found in southern Florida，has an extra lung for breathing on dry land. When its swimming hole dries up，the walking catfish waddles on stiff forward fins in search of another lake or stream．If an enemy attacks，the fish flares（展开）its top and front fins and leaps at the attacker to scare it off．
Armored catfish．This catfish has heavy，bony plates protecting its body. The shell makes the fish difficult to bone. To cook it，throw the fish whole into a fire. When it is done，break it open for eating．Some armored catfish are found in Florida，but the 100-pounders live in South America．
Rounding out the family of strange catfish are talking catfish，which make growing sound when you pull them from the water；climbing catfish，which move quickly up shore brush in search of food；electric catfish，which can deliver a mild shock；and blind catfish，which settle in the inky blackness of underwater caves．Blind catfish find food through taste buds in their eight whiskers（须）．
Most catfish have four whiskers on the upper jaw and four on the lower jaw. Sensory holes on these whiskers help the fish smell and taste food even in the muddiest of water．The United States does not have catfish anywhere near the size of those in South America．But in some large U.S，rivers，blue and flathead catties do top 100 pounds．
Most of the catfish you are likely to catch will be much smaller，about frying pan size．When you catch one，remember that the top fins and the forward fins have poison glands（腺）at their bases. They can give you painful wounds （…）
63．The purpose of the passage is to___________．
A．encourage readers to go fishing for catfish
B．inform readers of the world's largest catfish
C．describe the unusual characteristics of catfish
D．explain different ways to catch a variety of catfish
64．The author talks about the way of cooking an armored catfish to show that
A．it has heavy and bony plates        B．it's hard to cook and eat
C．it has too many bones      D．it's poisonous inside
65．Which is NOT mentioned about catfish in the passage?
A．Its eating habits．                                    B．Its living conditions． 
C．Its whiskers．                                 D．Its size
66．What may be continued in the last paragraph?
A．The author's love for catfish．     B．Where else to catch a catfish．
C．The origin of the name “catfish”    D．The safest way to handle catfish

Imagine your body is like the house you live in．Every day, your family creates rubbish．The rubbish builds up until it is put out for the weekly garbage collection．
Now, say you put three bags of garbage out．but because one of the collectors was away sick, only two bags are collected．You take the leftover bag inside to be put out again next week．The following week you put on another three bags．plus the leftover bag from last week．But again, only two bags are collected．Imagine this cycle is repeated over the following weeks．
This is a simple description of what happens to your body when your kidneys （肾脏）don't work efficiently．Your body is nol thoroughly emptied of waste products．Other areas of the bodv such as blood pressure and red blood cell production are affected and the insidious process that may lead to kidney failure begins．
It's not uncommon for people to lose up to 90% of their kidney function before deveoping any symptoms．There may be no warning signs. This makes early detection （诊查）difficult．
Kidney's main job is to remote toxins（毒素） and unwanted water from our blood．Every day our kidneys clean an average of 200 litres of blood．Kidney failure may be a gradual and silent process, going unnoticed because there is no apparent pain．
Research shows that more than 35% of the patients requiring dialysis （透析）do not see a kidney specialist before they have to do so．Some risk factors for kidney disease such as age and genetic make up are out of our control; however, some changes in lifestyle may help prevent kidney damage．Two major risk factors for kidney disease, diabetes （糖尿病）and high blood pressure, have been on the rise over the last few decades．Both conditions are chiefly affected by being overweight and not getting enough exercises, which are the potential risk factors for the kidney disease．
66．The author gives the example of the house we live in to indicate that ______．
A．it doesn't matter much if the waste in our body is not emptied in time
B．our body will not produce any waste if our kidneys work efficiently
C．it's important for our body to empty the waste in time every day
D．it's safe and harmless for our body to keep some waste
67．The underlined word “insidious” in Paragrap 3 means          .
A．smooth and safe                 B．apparent and fast
C．gradual and unnoticed       D．long and painful
68．We can infer that when we find some symptoms related to our kidneys,          .
A．the kidney failure begins
B．the kidneys can still work properly
C．we have lost about 10% of kidney function
D．the kidneys may have been seriously damaged
69．How many risk factors of kidney disease are mentioned in the passage?
A．Six.     B．Five.  C．Four.  D．Two.
70．Which of the following helps prevent kidney damage most effectively?
A．Go to see a kidney specialist shortly before dialysis starts.
B．Take enough exercise and make early detection of kidney disease.
C．Try to keep low blood pressure and a stable lifestyle.
D．Go to hospital whenever you find any warning signs.

Imagine your body is like the house you live in．Every day, your family creates rubbish．The rubbish builds up until it is put out for the weekly garbage collection．
Now, say you put three bags of garbage out, but because one of the collectors was away sick, only two bags are collected．You take the leftover bag inside to be put out again next week．The following week you put on another three bags, plus the leftover bag from last week．But again, only two bags are collected．Imagine this cycle is repeated over the following weeks．
This is a simple description of what happens to your body when your kidneys （肾脏）don't work efficiently．Your body is not thoroughly emptied of waste products．Other areas of the body such as blood pressure and red blood cell production are affected and the insidious process that may lead to kidney failure begins．
It's not uncommon for people to lose up to 90% of their kidney function before developing any symptoms．There may be no warning signs. This makes early detection （诊查）difficult．
Kidney's main job is to remove toxins（毒素） and unwanted water from our blood．Every day our kidneys clean an average of 200 litres of blood．Kidney failure may be a gradual and silent process, going unnoticed because there is no obvious pain．
Research shows that more than 35% of the patients requiring dialysis（透析）do not see a kidney specialist before they have to do so．Some risk factors for kidney disease such as age and genetic make-up are out of our control; however, some changes in lifestyle may help prevent kidney damage．Two major risk factors for kidney disease, diabetes （糖尿病）and high blood pressure, have been on the rise over the last few decades．Both conditions are chiefly affected by being overweight and not getting enough exercises, which are the potential (潜在的) risk factors for the kidney disease．
【小题1】The author gives the example of the house we live in to indicate that ______．

Imagine your body is like the house you live in．Every day, your family creates rubbish．The rubbish builds up until it is put out for the weekly garbage collection．

Now, say you put three bags of garbage out, but because one of the collectors was away sick, only two bags are collected．You take the leftover bag inside to be put out again next week．The following week you put on another three bags, plus the leftover bag from last week．But again, only two bags are collected．Imagine this cycle is repeated over the following weeks．

This is a simple description of what happens to your body when your kidneys （肾脏）don't work efficiently．Your body is not thoroughly emptied of waste products．Other areas of the body such as blood pressure and red blood cell production are affected and the insidious process that may lead to kidney failure begins．

It's not uncommon for people to lose up to 90% of their kidney function before developing any symptoms．There may be no warning signs. This makes early detection （诊查）difficult．

Kidney's main job is to remove toxins（毒素） and unwanted water from our blood．Every day our kidneys clean an average of 200 litres of blood．Kidney failure may be a gradual and silent process, going unnoticed because there is no obvious pain．

Research shows that more than 35% of the patients requiring dialysis（透析）do not see a kidney specialist before they have to do so．Some risk factors for kidney disease such as age and genetic make-up are out of our control; however, some changes in lifestyle may help prevent kidney damage．Two major risk factors for kidney disease, diabetes （糖尿病）and high blood pressure, have been on the rise over the last few decades．Both conditions are chiefly affected by being overweight and not getting enough exercises, which are the potential (潜在的) risk factors for the kidney disease．

1.The author gives the example of the house we live in to indicate that ______．

A．it doesn't matter much if the waste in our body is not emptied in time

B．our body will not produce any waste if our kidneys work efficiently

C．it's important for our body to empty the waste in time every day

D．it's safe and harmless for our body to keep some waste

2.The underlined word “insidious” in Paragraph 3 means         .

A．smooth and safe                        B．apparent and fast

C．gradual and unnoticed                   D．long and painful

3.We can infer that when we find some symptoms related to our kidneys,         .

A．the kidney failure begins

B．the kidneys can still work properly

C．we have lost about 10% of kidney function

D．the kidneys may have been seriously damaged

4.How many risk factors of kidney disease are mentioned in the passage?

A．Six.              B．Five.             C．Four.             D．Two.

5.Which of the following helps prevent kidney damage most effectively?

A．Go to see a kidney specialist shortly before dialysis starts.

B．Take enough exercise and make early detection of kidney disease.

C．Try to keep low blood pressure and a stable lifestyle.

D．Go to hospital whenever you find any warning signs.