[题目]The atomic weight of oxygen is than of the hydrogen.A. 15 times heavier; thatB. 15 times heavier: thoseC. 16 times as heavier; thatD. 16 times as heavy; those 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】The atomic weight of oxygen is_____than ______of the hydrogen.

A. 15 times heavier; that

B. 15 times heavier: those

C. 16 times as heavier; that

D. 16 times as heavy; those

【答案】A

【解析】

试题分析：考查倍数表达法。句意：氧原子是氢原子重量的16倍。is 16 times havier是倍数表达法，that代指 weight，可知选A。

练习册系列答案

A. strength

B. power

C. value

D. stress

【题目】 That day I saw Mary grab the cat by ______ tail — which was _____ rather stupid thing to do.

A. the; a B. a; a

C. a; 不填 D. the; 不填

【题目】假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（），并在其下面写出该加的词。

删除：把多余的词用斜线（）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1.每处错误及其修改均仅限一词；

2.只允许修改10处，多者（从第11处起）不计分。

It's a pleasure for me give a short speech here today. Recently I've found that some of my classmates study too lately into the night. Nor do they spare enough time for a rest during the day. No wonder they can't fall asleep in class. Also, some classmates seldom have a breakfast. Certainly, which will surely do harm to their healthy. In my opinion, having enough sleep and a proper diet are extremely important. We must learn to make wisely use of our time. Only in this way can we keep fit or study well. Do you agree with me? Thanks to listening.

【题目】The manager had fallen asleep where he_______，without undressing.

A．was laying B．was lying

C．had laid D．had lied

【题目】All the students in our class buried themselves ________studies，________

the coming exam.

A．in；preparing

B．in；preparing for

C．for；prepared

D．for；prepared for

【题目】Printable Tags Turn Everyday Objects into Smart Devices

Engineers have developed printable metal tags (标贴) that could be attached to everyday objects and turn them into smart Internet of Things devices.

The metal tags are made from copper foil (铜箔) printed onto thin, flexible, paper-like materials to reflect WiFi signals. The tags work essentially like “mirrors” that reflect radio signals from a WiFi router. When a user’s finger touches these “mirrors”, it disturbs the reflected WiFi signals in such a way that can be remotely sensed by a WiFi receiver like a smartphone.

The tags can be nailed onto objects that people touch every day, like water bottles, walls or doors. These objects then become smart and connected devices that can signal a WiFi device whenever a user interacts with them. The tags can also be shaped into thin keypads or smart home control panels that can be used to remotely operate WiFi-connected speakers and other Internet of Things devices.

Xinyu Zhang, a professor of electrical and computer engineering, named the technology LiveTag. He pictures people using LiveTag technology to track human interaction with everyday objects. For example, LiveTag could potentially be used to assess the recovery of patients who have suffered from stroke (中风). “When patients return home, they could use this technology to provide data based on how they interact with everyday objects at home, whether they are opening or closing doors in a normal way, or if they are able to pick up bottles of water, for example. The amount, intensity and frequency of their activities could be recorded and sent to their doctors to evaluate their recovery,” said Zhang. “And this can all be done in the comfort of their own homes rather than having to keep going back to the clinic for frequent testing,” he added.

The researchers note several limitations of the technology. LiveTag currently cannot work with a WiFi receiver further than one meter away, so researchers are working on improving the tag sensitivity and detection range. Ultimately, the team aims to develop a way to make the tags using normal paper and ink printing, which would make them cheaper to mass produce.

【1】When people touch a printable metal tag, .

A. they are actually touching a mirror

B. the WiFi router will stop sending signals

C. the reflected WiFi signals will be disturbed

D. their fingers can be sensed by a WiFi router

【2】LiveTag can probably be used to .

A. precisely locate everyday objects

B. remotely control a WiFi-connected TV

C. easily block signals from WiFi devices

D. greatly improve one’s physical condition

【3】LiveTag helps stroke patients by .

A. evaluating the process of their recovery

B. sending data of their activities to doctors

C. connecting their smartphones with doctors’

D. recording doctors’ assessments of their recovery

【题目】We took our umbrellas with us when we went out in order to ________us from a heavy rain.

A．ban

B．preserve

C．prevent

D．protect

【题目】假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1.每处错误及其修改均仅限一词；

2.只允许修改10处，多者（从第11处起）不计分。

I went to the seaside to spending my summer holiday with my family. We stayed there for about two week. The weather was much hotter than in my hometown, but I got used to it or felt at home. Every morning, I got up early than my parents and went for breakfast ahead of the time. Then I went to have a chat with my new friend, John, whom I happen to come across during my holiday. John was a native and quite warm-heartedly and he was familiar to the seaside. Soon we became very good friends. After we parted, we have kept write to each other.

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