Push sickle, which first appeared in Song and Yuan dynasties, is one of the most important winnowing tools in ancient time.

Passage Two

Hair loss is one of those things we still do not understand. Science has， of course， shown that men are more likely than women to suffer major hair loss. Some kinds of hair loss are temporary （暂时的）， an effect of illness. In those cases we can expect the hair to grow back.

It all depends on whether the hair root is alive. If it is not， hair loss is permanent and nothing will help.

Some daily loss of hair is a normal， healthy sign. Most people lose between 40 to 50 scalp hairs each day.

Each of these scalp hairs grows for from two to six years and then rests. About three months later it is pushed out by a new hair growing from the same root.

This is not something that should cause great concern.

Something else we know is that normal hair loss is seasonal， with the most hair loss occurring in the fall. Everyone experiences a normal cycle of loss and growth.

The problem of hair loss results when loss is greater than growth.

The main cause of hair loss in men seems to be accumulation （ 积累） of a hormone（ 荷尔蒙） in the body. When that hormone reaches a certain level， the hair growing period is shortened and hair loss is the result. This is no cure for most cases of hair loss. This， however， is not the end of the world.

According to science，__________. 查看材料

A.hair loss is a normal， healthy sign

B.man should pay special attention to hair loss

C.it"s likely that men have more problems of hair loss

D.men lose more hair than women do

It all depends on whether the hair root is alive. If it is not, hair loss is permanent and nothing will help.

Some daily loss of hair is a normal, healthy sign. Most people lose between 40 to 50 scalp hairs each day.

Each of these scalp hairs grows for from two to six years and then rests. About three months later it is pushed out by a new hair growing from the same root. This is not something that should cause great concern.

Something else we know is that normal hair loss is seasonal(季节性的）, with the most hair loss occurring in the fall. Everyone experiences a normal cycle of loss and growth.

The problem of hair loss results when loss is greater than growth.

The main cause of hair loss in men seems to be accumulation (积累) of a hormone (荷尔蒙) in the body. When that hormone reaches a certain level, the hair growing period is shortened and hair loss is the result. There is no cure for most cases of hair loss. This, however, is not the end of the world.

According to science, _________.

A.all hair loss is a normal, healthy sign

B.man should pay special attention to hair loss

C.it’s likely that men have more problems of hair loss

D.men lose more hair than women do

If the hair root is not alive,_______.A.there will be illness

B.human beings have no way to cure hair loss

C.hair loss are temporary

D.there is still something that can help

We now know that the most hair loss happening in the autumn is ________.A.permanent

B.healthy sign

C.seasonal

D.nothing serious

The sentence “This, however, is not the end of the world ” means _______.A.man is sure to find the best way of curing his hair loss in the future

B.the writer believes the earth exists for ever

C.we can’t destroy the world by any means

D.the last day will never come to our people

The best title for the passage may be ________.A.Loss or Growth

B.Hair Loss

C.Healthy Sign

D.Change with Seasons

Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 through 40. For each question or statement there are 4 choices marked A, B, C, and D. You should make the correct choice.

Many visitors to the United States find that the fast pace at which people move is very troubling. One's first impression is likely to be that everyone is in a rush. City people always seem to be hurrying to get where they are going. And they are very impatient if they are delayed even for a brief moment. At first this may seem unfriendly to you. But drivers will rush you; storekeepers will be in a hurry as they serve you; people will push past you as they walk along the street. You will miss smiles and brief conversations with people when you shop or dine in a restaurant. Do not think it is because Americans are in such a hurry that they are unfriendly. Life is often much slower outside the big cities, which is true in other countries as well.

Americans who live in cities such as New York, Chicago, or Los Angeles, often think that everyone is equally in a hurry to get things done. But when they discover that you are a stranger, most Americans become quite kindly and will take great care to help you.

Visitors to the United States possible feel that city people of the country are very ______.

A．busy

B．kind

C．troubling

D．patient

A．she thinks people shouldn't be so concerned about physical fitness

B．she feels too old and tired to do such hard exercise

C．American society is overemphasizing youth and physical appearance

D．what happened to children centuries ago may occur to adults in America soon