课文原句81.如果没有发现透视法，就没有人能画出如此逼真的画。Iftheofhadnotbeendiscoverednoonehavebeenabletopaintsuch

Question

  课文原句

81. 如果没有发现透视法，就没有人能画出如此逼真的画。

If the ______ of ____________ had not been discovered no one _____ have been able to paint such _________ pictures.

82. 这些童谣能使小孩子们快乐，因为它们押韵、节奏感强，而且重复多遍。

They ________ small children because they ________ have strong______ and a lot of ________      .

83. 只有当这种病毒发展成艾滋病时，人才会显出病态。

It is only _______ the disease has _________ to _______ that a person begins to look _______.

84. 全球变暖是人为的，而不是随意的自然现象。

It is human activity that has _______ this global warming _______than a ________ but natural ____________.

85. 收集和评估这些信息之后，我就帮助其他科学家一起预测熔岩接着将往何处流，流速是多少。

_________  __________ and ___________ the information I help other scientists to predict where lava from the ______________ will flow next and how fast.

Answer 1

rules perspective would realistic; delight rhyme rhythm repetition ; when progressed AIDS sick; caused rather random phenomenon;  Having collected evaluated volcano