9分雅思图表写作范文全集之地图篇 人体构造图

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9分雅思图表小作文范文全集之地图 人体构造图The diagram shows the skeletal systems of two ancestors

of modern human beings.Write a 150-word report for a university lecturer

describing the diagram and making comparisons where relevant.

范文集结：全部9篇9分雅思写作地图范文汇总放送

参考范文

Variations in the skeletal systems of two early types of human are

illustrated in this diagram. Overall, we can see that australopithecus afarensis

had a heavier body and much longer arms, while homo erectus was slimmer and had

more developed joints.

To begin with the upper half of the body, australopithecus afarensis had a

much broader chest and waist than homo erectus, giving it a rounder appearance.

The former had much longer arms and larger hands, which would have been useful

for climbing trees.

As for the lower half of the body, we can see that homo erectus had

proportionately longer legs and larger hip, knee and ankle joints. The feet of

homo erectus were also smaller and more arched, with shorter toes. These

differences meant that homo erectus was better suited to long-distance

running.

In conclusion, we can see significant changes in the development of early

humans from the diagram. Homo erectus is more similar to contemporary human

beings with its long legs and arched feet. The physical differences are clearly

related to differences in the lifestyles of tree climbers and endurance

runners.

(183 words, IELTS 9.0)