Winter in the north is usually very cold and it is important to avoid colder-related injuries such as frostbite(冻伤) and hypothermia(体温降低)．Frostbite is damage that happens when skin is exposed to extreme cold for too long．It mainly happens on the hands，feet，nose，and ears and some will bring permanent damage．Hypothermia is a serious medical condition caused by serious cold．It happens when the body cannot produce as much heat as it loses．If not treated，it can be deadly．

The best way to avoid cold-related injuries is to be prepared for the outdoors．Here is a simple way to remember four basic steps to staying warm．Think of COLD．

The C stands for cover．Wear a hat and scarf to keep heat from escaping through the head，neck，and ears．And wear mittens instead of gloves．Mittens are a type of glove that does not have separate parts for each finger．Gloves may not keep hands as warm because they separate the fingers．

The O stands for overexertion(过分用力)．Avoid activities that will make you sweaty．Wet clothes and cold weather are a bad mix．

L is for layers．Wearing loose，lightweight clothes，one layer on top of another, is better than single heavy layer clothing．Also，make sure outerwear is made of water resistant and tightly knit material．

The last letter D stands for dry．In other words，stay as dry as possible．Pay attention to the places where snow can enter, like the tops of boots．the necks of coats and the wrist areas of mittens．

And there are a couple of other things to keep in mind，one for children and the other for adults．Eating snow might be fun but it lowers the body's temperature．And drinking alcohol might make a person feel warm，but what it really does is weaken the body's ability to hold heat．

67．Both frostbite and hypothermia        ．

A．are injuries caused by extreme cold

B．may happen on the hands，feet，nose and ears

C．may cause uncontrollable shaking and slow breathing

D．may be deadly injuries

68．Mittens can keep your hands warmer than gloves because           ．

A．they are thicker                     B．they are made of better materials

C．they don't separate your fingers        D．they separate your fingers

69．      can help you avoid cold-related injuries．

A．Trying your best to exercise until you get sweat

B．Wearing layers of loose，lightweight clothes

C．Drinking alcohol to make you feel warm

D．Wearing a single heavy layer of clothing

70．Overexertion should be avoided because         ．

A．it may exhaust you       B．it may make you hungry

C．it may make you sweat     D．it may lower your body temperature

Winter in the north is usually very cold and it is important to avoid colder-related injuries such as frostbite(冻伤) and hypothermia(体温降低)．Frostbite is damage that happens when skin is exposed to extreme cold for too long．It mainly happens on the hands，feet，nose，and ears and some will bring permanent damage．Hypothermia is a serious medical condition caused by serious cold．It happens when the body cannot produce as much heat as it loses．If not treated，it can be deadly．
The best way to avoid cold-related injuries is to be prepared for the outdoors．Here is a simple way to remember four basic steps to staying warm．Think of COLD．
The C stands for cover．Wear a hat and scarf to keep heat from escaping through the head，neck，and ears．And wear mittens instead of gloves．Mittens are a type of glove that does not have separate parts for each finger．Gloves may not keep hands as warm because they separate the fingers．
The O stands for overexertion(过分用力)．Avoid activities that will make you sweaty．Wet clothes and cold weather are a bad mix．
L is for layers．Wearing loose，lightweight clothes，one layer on top of another, is better than single heavy layer clothing．Also，make sure outerwear is made of water resistant and tightly knit material．
The last letter D stands for dry．In other words，stay as dry as possible．Pay attention to the places where snow can enter, like the tops of boots．the necks of coats and the wrist areas of mittens．
And there are a couple of other things to keep in mind，one for children and the other for adults．Eating snow might be fun but it lowers the body's temperature．And drinking alcohol might make a person feel warm，but what it really does is weaken the body's ability to hold heat．
67．Both frostbite and hypothermia        ．
A．are injuries caused by extreme cold
B．may happen on the hands，feet，nose and ears
C．may cause uncontrollable shaking and slow breathing
D．may be deadly injuries
68．Mittens can keep your hands warmer than gloves because           ．
A．they are thicker                     B．they are made of better materials
C．they don't separate your fingers        D．they separate your fingers
69．      can help you avoid cold-related injuries．
A．Trying your best to exercise until you get sweat
B．Wearing layers of loose，lightweight clothes
C．Drinking alcohol to make you feel warm
D．Wearing a single heavy layer of clothing
70．Overexertion should be avoided because         ．
A．it may exhaust you       B．it may make you hungry
C．it may make you sweat     D．it may lower your body temperature

Winter in the north is usually very cold and it is important to avoid colder-related injuries such as frostbite(冻伤) and hypothermia(体温降低)．Frostbite is damage that happens when skin is exposed to extreme cold for too long．It mainly happens on the hands，feet，nose，and ears and some will bring permanent damage．Hypothermia is a serious medical condition caused by serious cold．It happens when the body cannot produce as much heat as it loses．If not treated，it can be deadly．

The best way to avoid cold-related injuries is to be prepared for the outdoors．Here is a simple way to remember four basic steps to staying warm．Think of COLD．

The C stands for cover．Wear a hat and scarf to keep heat from escaping through the head，neck，and ears．And wear mittens instead of gloves．Mittens are a type of glove that does not have separate parts for each finger．Gloves may not keep hands as warm because they separate the fingers．

The O stands for overexertion(过分用力)．Avoid activities that will make you sweaty．Wet clothes and cold weather are a bad mix．

L is for layers．Wearing loose，lightweight clothes，one layer on top of another, is better than single heavy layer clothing．Also，make sure outerwear is made of water resistant and tightly knit material．

The last letter D stands for dry．In other words，stay as dry as possible．Pay attention to the places where snow can enter, like the tops of boots．the necks of coats and the wrist areas of mittens．

And there are a couple of other things to keep in mind，one for children and the other for adults．Eating snow might be fun but it lowers the body's temperature．And drinking alcohol might make a person feel warm，but what it really does is weaken the body's ability to hold heat．

1.Both frostbite and hypothermia         ．

A．are injuries caused by extreme cold

B．may happen on the hands，feet，nose and ears

C．may cause uncontrollable shaking and slow breathing

D．may be deadly injuries

2.Mittens can keep your hands warmer than gloves because           ．

A．they are thicker                     B．they are made of better materials

C．they don't separate your fingers        D．they separate your fingers

3.can help you avoid cold-related injuries．

A．Trying your best to exercise until you get sweat

B．Wearing layers of loose，lightweight clothes

C．Drinking alcohol to make you feel warm

D．Wearing a single heavy layer of clothing

4.Overexertion should be avoided because          ．

A．it may exhaust you        B．it may make you hungry

C．it may make you sweat     D．it may lower your body temperature

Winter in the north is usually very cold and it is important to avoid colder-related injuries such as frostbite(冻伤) and hypothermia(体温降低)．Frostbite is damage that happens when skin is exposed to extreme cold for too long．It mainly happens on the hands，feet，nose，and ears and some will bring permanent damage．Hypothermia is a serious medical condition caused by serious cold．It happens when the body cannot produce as much heat as it loses．If not treated，it can be deadly．

The best way to avoid cold-related injuries is to be prepared for the outdoors．Here is a simple way to remember four basic steps to staying warm．Think of COLD．

The C stands for cover．Wear a hat and scarf to keep heat from escaping through the head，neck，and ears．And wear mittens instead of gloves．Mittens are a type of glove that does not have separate parts for each finger．Gloves may not keep hands as warm because they separate the fingers．

The O stands for overexertion(过分用力)．Avoid activities that will make you sweaty．Wet clothes and cold weather are a bad mix．

L is for layers．Wearing loose，lightweight clothes，one layer on top of another, is better than single heavy layer clothing．Also，make sure outerwear is made of water resistant and tightly knit material．

The last letter D stands for dry．In other words，stay as dry as possible．Pay attention to the places where snow can enter, like the tops of boots．the necks of coats and the wrist areas of mittens．

And there are a couple of other things to keep in mind，one for children and the other for adults．Eating snow might be fun but it lowers the body's temperature．And drinking alcohol might make a person feel warm，but what it really does is weaken the body's ability to hold heat．

67．Both frostbite and hypothermia         ．

A．are injuries caused by extreme cold

B．may happen on the hands，feet，nose and ears

C．may cause uncontrollable shaking and slow breathing

D．may be deadly injuries

68．Mittens can keep your hands warmer than gloves because           ．

A．they are thicker                     B．they are made of better materials

C．they don't separate your fingers        D．they separate your fingers

69．       can help you avoid cold-related injuries．

A．Trying your best to exercise until you get sweat

B．Wearing layers of loose，lightweight clothes

C．Drinking alcohol to make you feel warm

D．Wearing a single heavy layer of clothing

70．Overexertion should be avoided because          ．

A．it may exhaust you        B．it may make you hungry

C．it may make you sweat     D．it may lower your body temperature

阅读理解。

阅读下面短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。

　　On the fourth Thursday in November, Americans celebrate the festival of Thanksgiving．This festival is a time when the family comes together for a meal and gives thanks to God for the blessings they have received. The first Thanksgiving festival was celebrated by the early American settlers who gave thanks to God for their good harvest.

　　In America, Thanksgiving is a family holiday. It is on that holiday that all the family members make a special effort to get together. The feast is always held on Thursday and most people have a four-day holiday from school and work. Thus they are able to travel a great distance to be with their family.

　　The Thanksgiving meal is traditionally turkey, which was the food for the first Thanksgiving. The table is filled with fruits, walnuts and many kinds of vegetables. For dessert the main choice is usually pumpkin pie. The meal is a time for the members of the talking before the meal, during the meal and long after the meal.

　　On Thanksgiving morning there are sporting events and parades in many cities to mark the day. The family dinner is usually held in the afternoon around 4 o'clock. The mother will prepare the meal and the father will carve the turkey. He will preside at the head of the table. The meal will begin with a short prayer of thanksgiving to God for the blessing the family received. The father will also thank the family for coming together on this day. During the meal there is plenty of food for everyone present. The meal is a very joyful time. When the meal is over some will help with the dishes and others will return to the living room to talk or watch television.

　　In many ways the festival of Thanksgiving is similar to the Chinese festival of Mid-Autumn Day. It is a time for the family to get together for dinner.

1．On Thanksgiving Day the family comes together except ________.

[　　]

A．to have the Thanksgiving dinner

B．to thank God for the blessing they have received

C．to talk with one another

D．to cook turkey together

2．Why does the writer say Thanksgiving is a family holiday in America?

[　　]

A．It is a holiday for those who have a family.

B．People try to get back to be with their family wherever they are.

C．People celebrate this holiday only at home and will not go out on this particular day.

D．Each family has its own way of celebrating this holiday.

3．Which of the following was the food for the first Thanksgiving according to this passage?

[　　]

4．What is one similarity between Thanksgiving and Mid-Autumn Day in China?

[　　]

A．They are held at about the same time of the year.

B．Family members make a special effort to get together.

C．People eat the same traditional food on both days.

D．Their celebration activities are more or less the same.

5．Today is November 4th, Thursday. Which of the following is Thanks-giving Day?

[　　]