八年级英语下册 Unit 1 Whats the matter第3课时习题课件 新版人教新目标版
八年级英语下册Unit1What'sthematter第三课时作业课件人教版(3)
第三课时 Section B (1a－1d)
目录页
听力专训 基础积累 能力提升
一、听下面一篇短文，根据你所听到的内容，选 择能回答所提问题的最佳选项。(听两遍)
Mr.Brown is a good doctor.Four people came to meet him this morning.Mr.Brown gave them different medicines and suggestions.Alice has a cold.She needs to take medicine twice a day and drink more water.
C．She has a headache.
( C )3.How often should Tom take medicine?
A．Three times a day.
B．Twice a day.
C．Once a day.
( C )4.Who has a sore throat? A．Tom. B．Bob. C．Mary.
四、单项选择。
( A )1.—______ carefully，Michael！There's a scቤተ መጻሕፍቲ ባይዱool
ahead.
—OK.
A．Drive
B．To drive
C．Driving
D．Drove
( B )2.—Tom，Mother told you ______ eating too
much meat.
The researchers asked 25 university students to join in their sleep experiment.They were asked to get a good night's sleep for two nights.A week later，they were asked to sleep for only four hours every night for two nights in a row.
人教版八年级英语下册 (What's the matter)习题课件(第3课时)
3．What's the _m__ea_n_in_g__ (mean) of the word?
4．We realized the_i_m_p_o_rt_a_nc_e__ (important) of food safety. 5．Her father's ___d_ea_t_h__(die) made the whole family very sad. 6．[2018·烟台]They haven't made a _d_e_ci_si_o_n__(decide) where to
2．我认为你发烧了，让我量量你的体温吧。(let) __I_t_hi_n_k_y_o_u_h_av_e_a_f_e_ve_r_. L__et_m_e_t_a_k_e_y_ou_r_t_em__p_er_a_tu_r_e_. ____________
3．昨天晚上迈克发生了什么事？(happen, to) ___W_h_a_t _h_ap_p_e_n_ed__to_M__ik_e_l_as_t_n_ig_h_t?__________________________
课后巩固提升
Ⅰ.单项选择
( B )1.In our school ________ students like English, but ________ of them can speak English smoothly(流利)．
A．a little; a few
B．a few; few
C．a few; a little
D．show D．loudly D．stomach D．It D．laugh
八年级英语下册 Unit 1 What’s the matter(第3课时)练习 (新版)人教新目标
Unit 1 What’s the matter第三课时Section A(4a～4c)Ⅰ.用括号内所给单词的适当形式填空。
1．Helen has a toothache(tooth)．She needs to see a dentist.2．John fell(fall)down from his bike yesterday and hurt his knees.3．—Ann cut herself(she) with a knife just now.—She should be careful.4．Could you help me put some medicine(medicine)on my finger?5．Peter hurt himself playing(play) basketball last Sunday.Ⅱ.补全对话。
从方框中选择适当的句子补全对话(有两项多余)。
A：Where is Lily？She didn't come to school today.B：Oh，she went to the hospital.A：__6__B：She had an accident on her way to school.And her arm was hurt.A：Sorry to hear that.__7__B：When she was riding on the road，a car hit her.__8__A：That's terrible.__9__B：I think we should go to the hospital to visit her.A：Yes，and if you go，I will go with you.B：OK.__10__A：I agree with you.A．How did it happen?B．Should we leave her a message?C．Hope it wasn't a serious accident.D．We should buy some flowers for her first.E．I'm going to see the doctor，too.F．What's the matter with her?G．She fell off the bike and got hurt.6．F 7.A 8.G 9.C 10.DⅢ.阅读理解。
八年级英语下册unit1what’sthematter第3课时习题课件3
答案：(1)竖直 (2)4,50 (3)10
解析：(1)弹簧是竖直的，要减小误差，刻度尺必须与弹簧平行，故刻度尺要保 持竖直状态；
(2)弹簧处于原长时，弹力为零，故原长为 4 cm；弹簧弹力为 2 N 时，弹簧的长 度为 8 cm，伸长量为 4 cm；根据胡克定律 F＝kΔx，有：k＝ΔFx＝0.204Nm＝50 N/m；
4．按照在图中所绘点的分布与走向，尝试
某同学利用如图(a)装置做“探究弹 簧弹力大小与其长度的关系”的实验．
(1)在安装刻度尺时，必须使刻来自尺保持 ____________状态．
(2)他通过实验得到如图(b)所示的弹力大小 F与弹簧长度x的关系图线，由此图线可得该弹 簧的原长x0＝____________cm，劲度系数k＝ ____________N/m．
(4)根据 Y＝kSL求得，Y≈4.98×106 Pa．
答案：(1)D (2)毫米刻度尺 螺旋测微器 (3)见解析图 312.5 (4)4.98×106 Pa
减小实验误差的两种方法
本实验的系统误差来自弹簧的重力，所以 改进实验的思路应该是尽可能减小弹簧自重的 影响：
(1)一个方案是选择劲度系数较小的轻弹 簧，通过减小读数的相对误差来提高实验的精 确度．
(1)在国际单位制中，杨氏模量 Y 的单位应该是( )
A．N
B．m
C．N/m
D．Pa
(2)有一段横截面是圆形的橡皮筋，应用如 图所示的实验装置可以测量出它的杨氏模量Y 的值．首先利用测量工具a测得橡皮筋的长度L ＝20.00 cm，利用测量工具b测得橡皮筋未受 到拉力时的直径D＝4.000 mm，那么测量工具 a应该是____________，测量工具b应该是
八年级人教版英语下册练习：《Unit 1 What’s the matter》第三课时作业
Unit 1 What’s the matter ?第三课时作业一、用所给词的适当形式填空。
1.Jack is ____________(interest) in riding bikes.2.My mother is used to _____________(get) up early.3.He found himself in a dangerous situation when ___________(climb).4.After____________(have) a quick breakfast ,he went to school.5.Aron tells of the importance of making good _________(decide) in his book.6.Don’t give up______(sing). I think your dream can come true one day.7.No one knew the______(mean) of the sentence.8.Don’t worry. We are old enough and we can loo k after______(we) well.9.If he knows the______(important) of study he will succeed.10.Are you ready______ ( help) others when they are in trouble?二．完成句子。
1.阿伦是一个队登山感兴趣的美国人。
Aron is an American man who mountain climbing.2.作为一名登山者，阿伦习惯于冒险。
As a mountain climber, Aron taking risks.3.但当他水喝完了的时候，他知道他将不得不采取措施来挽救自己的生命。