C
A new study in West Africa shows how farm irrigationsystems powered by the sun can pro-duce more food and money for villagers． The study-in Benin found that solar - powered pumpsare effective in 8upplying water, especially during the long dry season．
Sub - Saharan Africa is the part of the world with the least food security． The United Na-tions Food and Agriculture Organization estimates that more"than one biillion of the world' s peo-ple faced hunger last year．Around 265 million of them live'south of the Sahara Desert:  Lack of  rainfallis one oftheir main causes offood shortages．．
Jennifer Bumey from Stanford University in Califomia led the study．The research team helped build three solar - powered drip irrigation -（滴灌） ,systems in northem Benin． Between 30 and 35 women used each system to pump water from the ground or a stream．Each woman was responsible for farming her own 120 sqrurre meters of land． They also farmed other land  collectively．
The solar - powered irrigation systems produced an average of nearly two tons of vegetables per montb． During the first year, the women．kept a monthly average of almost rune kilograms of vegetables for home use．They sold the surplus produce at local markets． The eamings greatly increased their ability to buy food during the dry season which can last six to nine months． Peo- ple in the'two villages with the systems were able to eat three to five more servingsof yegetables per day．But making the surplus available at markets also had a wider effect．
The study compared the villages with two others where women farmed with traditional methods like carrying water in buckets． The amount of vegetables eaten in those villages also  increased, though not as much．The researchers note that only four percent of the croplamd in sub - Saharan Africa is irrigated． Using solar power to pump water has higher costs at first． But    the study says it can be more economical in the long term than using fuels like gasoline,  diesel  or kerosene． And solar power is environmentally friendly．
66．Food security in Sub - Saharan Africa is insufficient mainly because of
A．lack of rainfall         B．limitation of farmland
C． a small crop variety   D．little sunlight
67．From the third paragraph we know that _______．
A．water is wasted by using the system
B． the farmers imgate the land together
C． all farmers use irrigation systems in northem Benin
D． the solar - powered systems take up more manpower
68．The underlined word "surplus" in the 4th paragraph most probably means_______
A．special             B．unnecessary      C．extra      D．abandoned
69．Usinf．solar power to pump water has advantages EXCEPT that
A．solar energy has higher cost at first
B．solar power helps to protect environment
C．solar power helps farmers increase eanungs
D． solar energy can be more economical in the long run
70．What can be the best title for the text?
A．Manpower affects rainfallin Africa
B．Irrigation by carrying water in buckets
C．Solar - powered pumps aid African farmers
D．Vegetable supply increased in African villages

A new study in West Africa shows how farm irrigation systems powered by the sun can pro-duce more food and money for villagers．The study-in Benin found that solar - powered pumps are effective in 8upplying water, especially during the long dry season．

       Sub - Saharan Africa is the part of the world with the least food security．The United Nations Food and Agriculture Organization estimates that more” than one billion of the world' s people faced hunger last year．Around 265 million of them live’ south of the Sahara Desert: Lack of rainfalls one of their main causes of food shortages．

       Jennifer Bumpy from Stanford University in Califomia led the study．The research team helped build three solar - powered drip irrigation -（滴灌）,systems in northern Benin．Between 30 and 35 women used each system to pump water from the ground or a stream．Each woman was responsible for farming her own 120 squire meters of land． They also farmed other land  collectively．

       The solar - powered irrigation systems produced an average of nearly two tons of vegetables per month． During the first year, the women．kept a monthly average of almost rune kilograms of vegetables for home use．They sold the surplus produce at local markets． The earnings greatly increased their ability to buy food during the dry season which can last six to nine months．People in the’ two villages with the systems were able to eat three to five more servings of vegetables per day．But making the surplus available at markets also had a wider effect．

       The study compared the villages with two others where women farmed with traditional methods like carrying water in buckets．The amount of vegetables eaten in those villages also increased, though not as much．The researchers note that only four percent of the cropland in sub - Saharan Africa is irrigated．Using solar power to pump water has higher costs at first．But the study says it can be more economical in the long term than using fuels like gasoline, diesel or kerosene．And solar power is environmentally friendly．

1．Food security in Sub - Saharan Africa is insufficient mainly because of

       A．lack of rainfall                          B．limitation of farmland

       C．a small crop variety                           D．little sunlight

2．From the third paragraph we know that ．

       A．water is wasted by using the system

       B．the farmers migrate the land together

       C．all farmers use irrigation systems in northern Benin

       D．the solar - powered systems take up more manpower

3．The underlined word "surplus" in the 4th paragraph most probably means

       A．special           B．unnecessary        C．extra                 D．abandoned

4．Using．solar power to pump water has advantages EXCEPT that

       A．solar energy has higher cost at first

       B．solar power helps to protect environment

       C．solar power helps farmers increase earnings

       D．solar energy can be more economical in the long run

5．What can be the best title for the text?

       A．Manpower affects rainfall in Africa

       B．Irrigation by carrying water in buckets

       C．Solar - powered pumps aid African farmers

       D．Vegetable supply increased in African villages

　　The survey about childhood in the Third World shows that the struggle for survival is long and hard. But in the rich world, children can 1 from a different kind of poverty-of the spirit. 2 , one Western country alone now sees 14 000 attempted suicides (自 杀) every year by children under 15, and one child 3 five needs psychiatric (心理) advice.

　　There are many good things about 4 in the Third World. Take the close and con-stant relation between children and their par-ents, relatives and neighbours for example. In the West, the very nature of work puts dis-tance between 5 and children. But in most Third World villages mother and father do not go miles away each day to work in of-fices. 6 , the child sees mother and father,relations and neighbours working 7 and often shares in that work.

　　A child 8 in this way learns his or her role through joining in the community's 9 : helping to dig or build, look after ani-mals or babies-rather than 10 playing with water and sand in kindergarten, keeping pets 11 playing with dolls.

　　These children may grow up with a less oppressive sense of space and time than the 12 children. Their sense of days and time has a lot to do with the change of seasons and positions of the sun or the moon in the sky. Children in the rich world, 13 , are pro-vided with a watch as one of the 14 signs of growing up, so that they can 15 along with their parents about being late for school times, meal times, bed times, the times of TV shows...

　　Third World children do not usually 16 to stay indoors, still less in high-rise apartments (公寓). Instead of dangerous road, “keep off the grass” signs and “don't speak to strangers”, there is often a sense of 17 to study and play. Parents can see their children outside rather than observe them 18 from ten floors up.

　　 19 , twelve million children under five still die every year through hunger and disease. But childhood in the Third World is not all 20 .

C

       A new study in West Africa shows how farm irrigationsystems powered by the sun can pro-duce more food and money for villagers． The study-in Benin found that solar - powered pumpsare effective in 8upplying water, especially during the long dry season．

       Sub - Saharan Africa is the part of the world with the least food security． The United Na-tions Food and Agriculture Organization estimates that more"than one biillion of the world' s peo-ple faced hunger last year．Around 265 million of them live'south of the Sahara Desert:  Lack of  rainfallis one oftheir main causes offood shortages． ．

       Jennifer Bumey from Stanford University in Califomia led the study．The research team helped build three solar - powered drip irrigation -（滴灌） ,systems in northem Benin． Between 30 and 35 women used each system to pump water from the ground or a stream．Each woman was responsible for farming her own 120 sqrurre meters of land． They also farmed other land  collectively．

       The solar - powered irrigation systems produced an average of nearly two tons of vegetables per montb． During the first year, the women．kept a monthly average of almost rune kilograms of vegetables for home use．They sold the surplus produce at local markets． The eamings greatly increased their ability to buy food during the dry season which can last six to nine months． Peo- ple in the'two villages with the systems were able to eat three to five more servingsof yegetables per day．But making the surplus available at markets also had a wider effect．

       The study compared the villages with two others where women farmed with traditional methods like carrying water in buckets． The amount of vegetables eaten in those villages also  increased, though not as much．The researchers note that only four percent of the croplamd in sub - Saharan Africa is irrigated． Using solar power to pump water has higher costs at first． But    the study says it can be more economical in the long term than using fuels like gasoline,  diesel  or kerosene． And solar power is environmentally friendly．

66．Food security in Sub - Saharan Africa is insufficient mainly because of

       A．lack of rainfall         B．limitation of farmland

       C． a small crop variety   D．little sunlight

67．From the third paragraph we know that _______．

       A．water is wasted by using the system

       B． the farmers imgate the land together

       C． all farmers use irrigation systems in northem Benin

       D． the solar - powered systems take up more manpower

68．The underlined word "surplus" in the 4th paragraph most probably means_______

       A．special              B．unnecessary       C．extra       D．abandoned

69．Usinf．solar power to pump water has advantages EXCEPT that

       A．solar energy has higher cost at first

       B．solar power helps to protect environment

       C．solar power helps farmers increase eanungs

       D． solar energy can be more economical in the long run

70．What can be the best title for the text?

       A．Manpower affects rainfallin Africa

       B．Irrigation by carrying water in buckets

       C．Solar - powered pumps aid African farmers

       D．Vegetable supply increased in African villages

It was only 5 o’clock in the morning. The house was quiet and Tim' s mother was still asleep. Only the sound of the big freezer broke the quiet. He’d dreamt of the cave last night. The purring (轻微颤动声) of the freezer had been the sea.                                         
Tim pulled on a sweater and put some apples into his schoolbag. It was too early for breakfast. He' d eat after he' d been through the cave, sitting on the rocks and staring at the sea.
He wished he had a proper pack. His schoolbag would have to do. What else? Sandwiches-but his mother might wake up if he started pulling out bread for sandwiches, she’d want to know why he had to leave so early. He settled for some biscuits, and left a note stuck to the table:
Gone to Michael’s. Back tonight, Tim.
The sky was high and soft and light outside, though the sun still wasn't up. Even the highway up the hill was quiet as he made his way down the street. The wind from the sea was fresh and sweet.
The sand hills still breathed heat from yesterday’s sun, though the top of the sand was cool. He ran down to the beach impatiently, but there was no one, just dry sand dancing in the early wind and seabirds marching up and down watching the waves.
The light changed suddenly. The first rays of sunlight stretched (延伸) across the sea. The sun was pushing its way over the edge of the world.
Over the first rocks, along to the point, Tim glanced back. The beach was still empty. The sun sailed higher in the sky.
He could see the cave now, even darker in the morning light. The sand turned silver then dark gold as the water flowed away from it. He had to force himself to go closer. Why was it so much more mysterious (神秘的) now? But it would be silly to go back now after so much trouble. He needn't go in all the way...
【小题1】What did Tim do at the beginning of the story?