剑桥雅思6 test 3 Section 4听力原文与答案
这篇雅思听力Section 4由四道单项选择和六道单句填空构成，前后难度都比较大。尤其是前面的选择题，相比于听力原文而言，选项的替换十分灵活，哪怕录音听的差不多，也很容易识别不出来。大家如果在真实考试中的Section 4遇到了选择，基本就是这种难度。
剑6 test 3 Section 4雅思听力原文
Good morning everyone. Last week we were looking at the hunter-gatherers in Ireland, across the Irish Sea from England. Today, we’re going to move on to the period between four and six thousand years ago, known as the Neolithic period, which is when a total farming economy was introduced in Ireland.
Now, there are several hypotheses about the origins of the first Neolithic settlers in Ireland, but most of these contain problems. For instance, there are considerable archaeological difficulties about the theory that they came from England. The evidence doesn’t really add up. But there are even greater practical problems about the theory that they came directly from continental Europe. For one thing, it’s not clear just how sufficient numbers of men and women could have been transported to Ireland to establish a viable population. As you know, the hunter-gatherer economy which existed beforehand was based on small scattered groups. The farming economy would almost certainly have required much larger communities to do all the work needed to plant and tend sufficient crops to sustain them through the year. Q31
The early farmers kept various animals, including cattle and sheep. There’s also evidence of pigs, but it is possible that these could have been descended from the native wild species. Now, we know from modern farming that if the level of breeding stock falls below about three hundred females, the future of the species locally is at risk. So we must assume that from the beginnings of Neolithic farming the number of breeding sheep would have considerably exceeded three hundred, and the national cattle herd must have been of a similar size. The question is how these were brought to the area and where they came from. Q32
It’s usually suggested that the Neolithic settlers used skin-covered boats to transport livestock. But this method would have severely restricted the range of the colonising fleets. The sheer volume of animal transport necessary means it’s unlikely that this livestock could have been brought from anywhere further than England. Q33
What about crops? Well, two main cereal crops were introduced to Ireland during this time: wheat and barley, both in several varieties. The main evidence for their presence consists of impressions on pottery, where a cereal grain accidentally became embedded in the surface of a pot before it was fired. The grain itself was destroyed by the firing, but it left an impression on the pot which could be studied and identified by botanists. Q34
Let’s turn our attention now to the farming technology available at that time. Before the cereal crops could be planted, it would have been necessary to clear the forest and to break the ground by ploughing. The stone blade of a plough has been discovered during excavation in County Mayo in western Ireland. The body of the plough would have been of wood and could have been drawn by people, but it’s also likely that cattle were used. Q35
Now, the cultivation of crops and the husbandry of livestock brought about changes in people’s lifestyle such as the type of shelters they made. For one thing, instead of moving from place to place they needed permanent dwellings. The stone axes used to chop down trees to make these dwellings were far superior to any that the Stone Age hunter-gatherers used.
To make the axes, sources of suitable stone had to be found and systematically exploited. These so-called ‘axe factories’ were really quarries rather than factories, as the manufacture of the axes wasn’t regularly performed on the quarry site. However, after the axe had been chipped into shape, they needed water and sand for grinding and polishing, so a high mountainside wouldn’t have been an appropriate place for this. So this final stage of the manufacture must have been carried out close to water and sure enough, there’s ample evidence of this at coastal sites. Q36
Now it’s clear that these Neolithic axes were transported all over Ireland, as well as to Scotland and the south of England. It’s not really surprising that axes from ‘axe factories’ in England have also been found in Ireland. At the very least, this indicates that there was a link between the two islands during that period. Q37
One of the most useful innovations of the colonisers was pottery making, which was quite unknown to Irish hunter-gatherers. The pottery was probably made by shaping clay into a ball with the hand, and then hollowing it until the walls were the right thickness. After firing, the outside was often polished. This would have helped the pots to retain water, as they weren’t glazed. Now we know that the clay used usually came from local sources, which suggests that manufacture was on a fairly small scale, even though thousands of fragments are usually found at Neolithic sites. Q38 Q39
In the course of time decoration began to appear. At first this looked like a series of stitches and was just around the tops of the pots. This could have been an imitation of earlier vessels which were made of leather sewn onto wood. Then eventually pots with decoration all over… Q40
剑6 test 3 Section 4雅思听力答案
36. water sand