Passage B
Except for the sun,the moon looks the biggest object in the sky.Actually it is one of the smallest and only looks big because it is so near to us.Its diameter is only 2160 miles(3389 km),or a little more than a quarter of the diameter of the earth.
Once a month,or,more exactly,once every 29.5 days,at the time we call“full moon”,its whole disc looks bright.At other times only part of it appears bright,and we always find that this is the part which faces towards the sun,while the part facing away from the sun appears dark.People could make their pictures better if they kept this in mind—only those parts of the moon which are lighted up by the sun are brighter.This shows that the moon gives no light of its own.It only throws back the light of the sun,like a huge mirror hung in the sky.
Yet the dark part of the moon’s surface is not completely black;usually it is just light enough for us to be able to see its shape,so that we speak of seeing“the old moon in the new moon’s arms”.The light by which we see the old moon does not come from the sun,but from the earth.We know well how the surface of the sea or of snow,or even of a wet road,may throw back uncomfortably much of the sun’s light on to our faces.In the same way the surface of the whole earth throws back enough of the sun’s light on to the face of the moon for us to be back to see the parts of it which would otherwise be dark.

Passage B
Except for the sun,the moon looks the biggest object in the sky.Actually it is one of the smallest and only looks big because it is so near to us.Its diameter is only 2160 miles(3389 km),or a little more than a quarter of the diameter of the earth.
Once a month,or,more exactly,once every 29.5 days,at the time we call“full moon”,its whole disc looks bright.At other times only part of it appears bright,and we always find that this is the part which faces towards the sun,while the part facing away from the sun appears dark.People could make their pictures better if they kept this in mind—only those parts of the moon which are lighted up by the sun are brighter.This shows that the moon gives no light of its own.It only throws back the light of the sun,like a huge mirror hung in the sky.
Yet the dark part of the moon’s surface is not completely black;usually it is just light enough for us to be able to see its shape,so that we speak of seeing“the old moon in the new moon’s arms”.The light by which we see the old moon does not come from the sun,but from the earth.We know well how the surface of the sea or of snow,or even of a wet road,may throw back uncomfortably much of the sun’s light on to our faces.In the same way the surface of the whole earth throws back enough of the sun’s light on to the face of the moon for us to be back to see the parts of it which would otherwise be dark.

Passage B
Except for the sun,the moon looks the biggest object in the sky.Actually it is one of the smallest and only looks big because it is so near to us.Its diameter is only 2160 miles(3389 km),or a little more than a quarter of the diameter of the earth.
Once a month,or,more exactly,once every 29.5 days,at the time we call“full moon”,its whole disc looks bright.At other times only part of it appears bright,and we always find that this is the part which faces towards the sun,while the part facing away from the sun appears dark.People could make their pictures better if they kept this in mind—only those parts of the moon which are lighted up by the sun are brighter.This shows that the moon gives no light of its own.It only throws back the light of the sun,like a huge mirror hung in the sky.
Yet the dark part of the moon’s surface is not completely black;usually it is just light enough for us to be able to see its shape,so that we speak of seeing“the old moon in the new moon’s arms”.The light by which we see the old moon does not come from the sun,but from the earth.We know well how the surface of the sea or of snow,or even of a wet road,may throw back uncomfortably much of the sun’s light on to our faces.In the same way the surface of the whole earth throws back enough of the sun’s light on to the face of the moon for us to be back to see the parts of it which would otherwise be dark.

Passage A
On the evening of June 21,1992,a tall man with brown hair and blue eyes entered the beautiful hall of the Bell Tower Hotel in Xi’an with his bicycle.The hotel workers received him and telephoned the manager,for they had never seen a bicycle in the hotel hall before though they lived in“the kingdom of bicycles.”
Robert Friedlander,an American,arrived in Xi’an on his bicycle trip across Asia which started last December in New Delhi,India.
When he was 11,he read the book Marco Polo and made up his mind to visit the Silk Road.Now,after 44 years,he was on the Silk Road in Xi’an and his early dreams were coming true.
Robert Friedlander’s next destinations(目的地)were Lanzhou,Dunhuang,Urumqi,etc.He will complete his trip in Pakistan.

Passage A
On the evening of June 21,1992,a tall man with brown hair and blue eyes entered the beautiful hall of the Bell Tower Hotel in Xi’an with his bicycle.The hotel workers received him and telephoned the manager,for they had never seen a bicycle in the hotel hall before though they lived in“the kingdom of bicycles.”
Robert Friedlander,an American,arrived in Xi’an on his bicycle trip across Asia which started last December in New Delhi,India.
When he was 11,he read the book Marco Polo and made up his mind to visit the Silk Road.Now,after 44 years,he was on the Silk Road in Xi’an and his early dreams were coming true.
Robert Friedlander’s next destinations(目的地)were Lanzhou,Dunhuang,Urumqi,etc.He will complete his trip in Pakistan.

Passage A
On the evening of June 21,1992,a tall man with brown hair and blue eyes entered the beautiful hall of the Bell Tower Hotel in Xi’an with his bicycle.The hotel workers received him and telephoned the manager,for they had never seen a bicycle in the hotel hall before though they lived in“the kingdom of bicycles.”
Robert Friedlander,an American,arrived in Xi’an on his bicycle trip across Asia which started last December in New Delhi,India.
When he was 11,he read the book Marco Polo and made up his mind to visit the Silk Road.Now,after 44 years,he was on the Silk Road in Xi’an and his early dreams were coming true.
Robert Friedlander’s next destinations(目的地)were Lanzhou,Dunhuang,Urumqi,etc.He will complete his trip in Pakistan.

Passage A
On the evening of June 21,1992,a tall man with brown hair and blue eyes entered the beautiful hall of the Bell Tower Hotel in Xi’an with his bicycle.The hotel workers received him and telephoned the manager,for they had never seen a bicycle in the hotel hall before though they lived in“the kingdom of bicycles.”
Robert Friedlander,an American,arrived in Xi’an on his bicycle trip across Asia which started last December in New Delhi,India.
When he was 11,he read the book Marco Polo and made up his mind to visit the Silk Road.Now,after 44 years,he was on the Silk Road in Xi’an and his early dreams were coming true.
Robert Friedlander’s next destinations(目的地)were Lanzhou,Dunhuang,Urumqi,etc.He will complete his trip in Pakistan.

Passage A
On the evening of June 21,1992,a tall man with brown hair and blue eyes entered the beautiful hall of the Bell Tower Hotel in Xi’an with his bicycle.The hotel workers received him and telephoned the manager,for they had never seen a bicycle in the hotel hall before though they lived in“the kingdom of bicycles.”
Robert Friedlander,an American,arrived in Xi’an on his bicycle trip across Asia which started last December in New Delhi,India.
When he was 11,he read the book Marco Polo and made up his mind to visit the Silk Road.Now,after 44 years,he was on the Silk Road in Xi’an and his early dreams were coming true.
Robert Friedlander’s next destinations(目的地)were Lanzhou,Dunhuang,Urumqi,etc.He will complete his trip in Pakistan.

There were no classes that afternoon,so Henry went to a （31） shop near his home.The shop sold many jackets.He looked （32） them and at last chose a very nice one.He （33） it on and then told the shopkeeper to put it into a （34）.At that time his friend Bruce came into the shop.They hadn't seen each other for a long time.They were so （35） to meet again that they forgot （36） else.Soon they were busy talking on and on happily.
It was nearly six o'clock,（37） they decided to go and have dinner together.Henry picked up the bag,and walked （38） the door of the shop.The shopkeeper stopped them and asked Henry to pay for the （39）.Henry looked at him in surprise at first,but soon he remembered that he hadn't paid for it.He said （40）,gave him the money and then left the shop with his friend.

There were no classes that afternoon,so Henry went to a （31） shop near his home.The shop sold many jackets.He looked （32） them and at last chose a very nice one.He （33） it on and then told the shopkeeper to put it into a （34）.At that time his friend Bruce came into the shop.They hadn't seen each other for a long time.They were so （35） to meet again that they forgot （36） else.Soon they were busy talking on and on happily.
It was nearly six o'clock,（37） they decided to go and have dinner together.Henry picked up the bag,and walked （38） the door of the shop.The shopkeeper stopped them and asked Henry to pay for the （39）.Henry looked at him in surprise at first,but soon he remembered that he hadn't paid for it.He said （40）,gave him the money and then left the shop with his friend.