Unit 7 Sports and Good Health Lesson 42：Know Yourself课时作业（含解析）

Unit 7 Sports and Good Health Lesson 42：Know Yourself
一、单选
1.The mouse ________ to the computer was bought just now.
A.connected B.connects C.connecting D.is connected
2.Before Mr. Green started out for a travel, he ________ the water supply (供应).
A. put off B. shut off C. go off D. show off
3.—What a _______! Tony, tidy your bedroom, please!
—OK, Mum.
A. truth B. mess C. change D. success
4.Li Qiang often spends some time _______ the house at home.
A. cleaning B. clean C. cleaned D. will clean
5.Do you _______ early and do any exercise
A. give up B. get up C. have fun D. lose weight
6.When I go into the classroom, I always ________.
A. keep it quiet B. keep them clean C. keep quiet D. keep clean
7.Don't open your books. Please keep them ______.
A. close B. closed C. closing D. closes
8.My English is a little poor. I must _______ it.
A. work for B. work hard at C. learn from D. work out
9.My phone number is 357-1355. Please ________.
A. write down them B. write it down C. write them down D. write down it
10.—Did he _______ for 15 hours yesterday
—Yes. He was too tired.
A. kept to sleep B. kept sleeping C. keep sleeping D. keep to sleep
二、填空
11.The baby has twelve__________(牙齿).
12.Finish the three__________(步骤),and you will win the game.
13.The teacher walked__________(朝) me and I felt a little scared.
14.Peter didn't make the bed, so his room was always a__________(杂乱).
15.These years China is__________(发展)fast, and people's life is becoming better.
答案以及解析
一、单选
1.答案：A
解析：句意:这个连接电脑的鼠标是刚买的。考查非谓语动词。根据"The mouse...to the computer."以及所给选项的词汇可知,此处the mouse和connect构成被动关系,表示"鼠标被连接到电脑",所以应用动词的过去分词作定语修饰the mouse。故选A。
2.答案：B
解析：句意：在格林先生出发旅行之前，他关闭了供水。考查动词短语辨析。put off推迟；shut off关掉；go off离开，爆炸；show off炫耀。根据"Before Mr. Green started out for a travel, he…the water supply"可知，此处指"他关闭了供水"。故选B。
3.答案：B
解析：句意为：----太乱了!---托尼，请整理你的房间!----好的，妈妈。truth意为"事实"；mess意为"杂乱；肮脏"；change意为"改变"；success意为"成功"。结合tidy。故选B。
4.答案：A
解析：spend…doing…意为"花费……做……"，为固定搭配。故选A。
5.答案：B
解析：give up意为"放弃"；get up意为"起床"；have fun意为"玩得开心"；lose weight意为"减肥"。根据early and do any exercise可知。故选B。
6.答案：C
解析：keep quiet意为"保持安静"；keep clean意为"保持干净"。故选C。
7.答案：B
解析：句意为：不要打开书。请把他们合上。keep后应用形容词作宾语补足语，意为"保持……"。Close作形容词意为"接近的；靠近的"；closed为形容词，意为"关闭的；不开放的"。根据Don't open可知应选closed。故选B。
8.答案：B
解析：work for意为"为……工作"；work at意为"努力改善；致力于"；learn from意为"向……学习"；work out意为"制订出；计算出"。结合语境可知此处应使用wort at，hard作副词，修饰work。故选B。
9.答案：B
解析：固定搭配write down意为"写下；记下"，其后接人称代词作宾语时，人称代词应放在中间；由于phone number是单数，故用代词it。故选B。
10.答案：C
解析：句意为：----他昨天一直睡了15个小时 ----是的，他太累了。keep doing...意为"一直做……"，且问句以Did开头。故选C。
二、填空
11.答案：teeth
12.答案：steps
13.答案：towards
14.答案：mess
15.答案：developing
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