.

第五部分:单词拼写（每空一词,用选修七1-4单元单词.共10小题；每小题1分，满分10分）

61. Many _____________ (残疾的) people have worked wonders.

62. Annie’s __________(协助) changed Helen from a deaf-blind child into a remarkable writer.

63. Sunshine is b___________ to the health.

64. It will take me a _____________（两星期）to finish reading the novel.

65. When her husband died, she received many letters and calls of ____________ (同情)  .

66. The well-known singer was a______________ on the piano by Langlang .

67. The ____________ (年度的)death rate in the United States is 11 per100.

68. He ____________ (逃离)his village to join the army when he was 17.

69. He told the police about the accident as he w____________ it on his way home.

70. Education should not be considered to be a ______________(特权) in modern society.

细菌生长的最重要因素为( )。

A．渗透压、温度

B．溶解氧、温度

C．pH值、光线

D．温度、pH值