Unit 5 Theme parks grammar课时作业

一、阅读理解

文体 说明文 题材 人物故事 　　Australia is popularly called"The Land Down Under"．However，there is another very important factor that adds to Australia's popularity-some scientists and their amazing contributions.

　　Richard Daintree：December 13,1832－June 20,1878

　　Richard Daintree was a geologist and explorer who used photography as his medium to record field research，and he was probably one of the first people to do so.He also discovered several coal－fields，gold－fields，and copper－fields during his explorations.His photographs of these discoveries are an excellent source of information for researchers today.The Daintree rainforest，Daintree river，and Daintree National Park have all been named in his honor.

　　Headlie Taylor：July 7,1883－March 22,1957

　　Headlie Taylor was a farmer in New South Wales，Australia，who came up with the Sunshine Header Harvester that has benefited countless farmers over the decades.Though he was barely educated，Taylor had a brilliant mind that led him to try improving the existing farm machinery.With working hard and creation，he taught himself engineering，and built a machine that could not only collect grains from standing crops，but also from damaged or fallen ones，thus saving grain that would otherwise be lost.This machine，or the"Header Harvester"，also cut the crop heads instead of pulling them out.

　　Howard Walter Florey：September 24,1898－February 21,1968

　　Howard Walter Florey played a very significant role in the discovery of penicillin along with Alexander Fleming and Ernst Chain，for which he won the Nobel Prize for Physiology or Medicine in 1945，which was shared by all of them.

　　Marcus Oliphant：October 8,1901－July 14,2000

　　Marcus Oliphant was a physicist，the first President of the Australian Academy of Science，and a founding member of the Australian National University.He was a member of the team that split the atom.His work took him to America during World War Ⅱ，where he was involved in the creation and development of the atom bomb that destroyed Hiroshima and Nagasaki.After the bomb killed civilians in the two cities，he decided to never get involved in the development of nuclear weapons that could be used for military purposes.His work then focused around finding other，non－violent uses for atomic energy.

　　Dorothy Hill：September 10,1907－April 23,1998

Apart from being a geologist，Dorothy Hill was also the first female university professor in