高中英语课时分层作业9Unit3InventorsandinventionsSectionⅢ

高中英语课时分层作业9Unit3InventorsandinventionsSectionⅢ、Ⅳ（含解析）新人教版选修8

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课时分层作业（九) Section Ⅲ、Ⅳ

[语言知识练习固基础］

语境填词

A)根据汉语或首字母提示，写出所缺单词

1．He turned as someone tapped（敲;打) him on the shoulder。

2．They provide financial and practical(实际的) help for disabled students.

3．He was charged with murder but found innocent(无辜的） later.

4．You'd better avoid being associated with such dishonest people.

5．She was afraid she wouldn't be able to bear the pain。

B)在空白处填入1个适当的单词或括号内单词的正确形式

6．The worried(worry) look deepened upon her face.

7．He found the house deserted(desert）．

8．Bearing（bear） a heavy burden，she has to work hard to bring up

her

children。

9．I rang you several times but couldn’t get through．

10．He is out now,and he has promised to ring back as soon as he

comes

back。

［高考题型练习提能力］

阅读理解

A

Paper plane power

Give your paper airplanes an energy increase。The motorized propeller and

rudder(方向舵）of the PowerUp 3.0 fits onto your folded flier and is controlled

with a smartphone app。Just fire up the app and use the on。screen controls to

start the propeller。Then throw the plane and watch it fly away.You can change

the flight path by holding your smartphone in different positions.The app

detects the phone’s angle and gets the rudder to change the plane’s

direction.The PowerUp 3。0 runs for about 10 minutes on a single charge。With

the PowerUp 3。0 powering your planes,the fun will really take off。 高中英语课时分层作业9Unit3InventorsandinventionsSectionⅢ、Ⅳ（含解析）新人教版选修8

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Showerhead speaker

Enjoy singing in the shower？Now you can belt out tunes to music coming

straight from above。The Moxie showerhead contains a waterproof（防水的)speaker

that connects wirelessly to your smartphone。First pull up your playlist on your

mobile phone,which will send a signal to the speaker to play the music.Then turn

on the water and enjoy a song。filled shower。（Just make sure to leave your

mobile phone someplace dry!)Want to continue your singing time after turning off

the shower?Just pull out the speaker from the showerhead and take your music on

tour。

Easy cycling

Talk about standing up for yourself。Usually it's up to the rider of a

unicycle to keep it steady so that it doesn’t fall over.But the SBU V3—an

engine.powered unicycle—stays balanced all by itself.Jump on the unicycle's

seat and place your feet on the footrests on either side of the wheel。When you

lean（倾斜)forward，built­in sensors（传感器)signal the motor to speed

up.Leaning back makes it slow down or stop。If you lean too far in any one

direction，the unicycle will sense too much movement and adjust itself to keep

you upright.This hands。free ride has got our back！

【语篇解读】 本文是应用文。文章主要介绍了三项神奇的发明。

1．How can you change your paper plane’s direction with the PowerUp 3.0？

A．By touching it gently.

B．By pressing a remote control。

C．By touching your smartphone’s screen. 高中英语课时分层作业9Unit3InventorsandinventionsSectionⅢ、Ⅳ（含解析）新人教版选修8

- 4 - / 6 D．By changing your smartphone's direction。

D ［细节理解题。由Paper plane power部分中的“You can change the flight

path by holding your smartphone in different positions."可知，你可以通过倾斜手机的方向来改变纸飞机的飞行路径。]

2．What do we know about the Moxie showerhead?

A．It has a removable speaker.

B．It has an automatic playlist.

C．It works only in dry places。

D．It can send wireless signals.

A [细节理解题。由Showerhead speaker部分中的“The Moxie showerhead contains

a waterproof （防水的） speaker和Just pull out the speaker from the

showerhead”可知，Moxie淋浴喷头装有一个可拆卸的音响.］

3．What is said about the SBU V3?

A．It travels at low speed.

B．It’s a self balancing unicycle.

C．The rider leans forward to slow it down。

D．The rider has to pedal hard to get it moving。

B [细节理解题.由Easy cycling部分中的“stays balanced all by itself”和“If

you lean too far in any one direction，the unicycle will sense too much movement

and adjust itself to keep you upright"可知，SBU V3是一种可以自我平衡的独轮车。］

B

Experts say that controlling the portion (一份食物）size is one of the

keys to losing weight and staying in ing smaller dishes is probably the

most popular way to control the size of your meals。But a couple of art students

in London may have come up with an even more effective one—using mirrors to

make tableware（餐具）look twice as full。

Saki Maruyama and Daniel Coppen have come up with a tableware design that

relies on mirrors to trick your eyes into seeing more food than is actually

available。Named Half/Full，their tableware set was clearly inspired by the

problem that humans might lack food in the future。So it is designed to make