题目内容
new,send,strong,fast,they,quiet,jump,even,exercise,it, so,support
You have more than 600 muscle (肌肉) in your body. Without them,you wouldn’t be able to walk,talk,smile or (81) breathe.
Most of your muscles are connected with your bones (骨骼) . When you want to move,your brain (82) messages that tell your muscles to contract (收缩) and get shorter. When the muscles contract,they pull on your bones and make (83) move. - Muscles work by contracting and relaxing. They can only pull on your bones. They can't get longer or push. (84) most muscles work in pairs.
Bending (弯曲) your arm is a pretty simple movement. Other movements like running and (85) use many,many more muscles,all contracting and relaxing at just the right times.
You use your muscles even when you are standing (86) ! Muscles in your legs,bottom,back and neck stay just a little bit contracted to (87) your bones and keep you from falling down.
You can't grow (88) muscles,but you can make the ones you have bigger and stronger. All you have to do is use them. The more you move,the (89) your muscles get.
If you don't (90) your muscles often,they’11 become weaker and weaker. They might not be able to pull hard or hold you up anymore. So move your muscles!
[体裁]说明文
[话题]卫生与健康
[大意]材料介绍了人体肌肉的一些情况。
81. even。该句意思是“没有肌肉的话，你 无法走路、说话、微笑，甚至无法呼 吸”。
82. sends。当你想动的时候，你的大脑会 “传递”信息给肌肉。因为主语your brain是单数可数名词，因此该空填动 词的第三人称单数形式。
83. them。_该空填them.，指代该句中的 bones。因为所填单词在句中作宾语，
所以该空填代词的宾格形式。
84. So。因为肌肉只能拉动骨骼，不能变 长或推动骨骼，“所以”大多数肌肉成 对发生作用。
85. jumping。由连词and可知该空要填一 个和running并列的词。根据方框中 所给的词，可知选jump,且用jump的 动名词形式。
86. quietly。该句意思是“甚至当你安静站 立的时候你的肌肉也在工作”。因.为 所填词语在句中修饰动词standing ,所 以该空填quiet的副词形式。
87. support。由句子后半部分的keep you from falling down可知这里要表达的 是:腿部、臀部、背部和颈部的肌肉会 进行收缩，来“支撑”骨骼。
88. new。由转折连词but可知该空和后 半句中的the ones you have构成转折 关系，因此该空填new。
89. stronger。你的肌肉.动得越多，就会 变得越“强壮”。“the +比较级(+...) , the +比较级(+•••) ”表示“越……，就 越…”。
90. exercise。该句意思是“如果你不经常 锻炼你的肌肉，它们就会变得越来越软弱无力”。
