( ) 10. Unless we can completely get rid of all the poisonous food in the market, all the
measures we have taken will be .
A. in trouble B. in detail C. in vain D. in debt
10. C考查介詞短語辨析。in trouble有麻煩;in detail 詳細地;in vain徒勞地;in debt負債。句意：除非我們能完全在市場上消除有毒食物，否則我們所采取的措施都是徒勞的，
題目來源：高考丟分題英語 > Unit 2 Healthy eating
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( ) 4. The photos on the wall my mother of those happy old days when a large family
lived together.
A. inform B. approve C. remind D. retell
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Most people know Alexander Graham Bell invented the telephone. But not many know about another talking device (equipment) he invented just four years later，in 1880. He called the device the photophone.
"Photophone" comes form the Greek words for "light" and "sound". The photophone did not use electricity to carry sound over wires between two people. That' s what a telephone does. Instead,
the photophone used a beam of sunlight traveling through the air. With his invention, Bell could actually transmit(傳遞)human speech on a beam of light. To do so，he spoke close to a thin mirror that was reflecting sunlight. The vibrations(顫動)of his voice caused the mirror to vibrate，and the vibrating mirror caused the light to vibrate. The vibrating light hit a light-sensitive cell in a receiver placed some distance away. The cell changed the light patterns into electrical signals. Earphones changed the signals back into sounds.
Bell believed that his idea of talking on a beam of light would prove to be important. He often called the photophone his greatest invention. Even though the photophone depended on a source of energy that was not constant一the sun―Bell wasn' t a bit discouraged. He felt sure that people would one day talk using beams of light.
Two much more recent developments made Bell' s dream come true. In 1960 ，a scientist built the laser. A laser produces a highly concentrated beam of light. Shortly afterward, other scientists developed a new kind of optical fiber. The optical fiber is a glass thread. The new fiber could carry light beams long distances―as far as several miles.
( ) 1. According to Bell's own opinion, is his greatest invention.
A. telephone B. optical fiber C. photophone D. laser
( ) 2. What does "That" refer to in the underlined sentence?
A. Using a beam of sunlight traveling through the air.
B. Using electricity to carry sound over wires between two people.
C. Transmitting human speech on a beam of light.
D. Light and sound.
( ) 3. Which statement is true about Bell，s invention of photophone?
A. The photophone depends on a constant source of energy.
B. The photophone is based on the invention of the telephone.
C. Earphones are used to change light into sounds.
D. The laser and the optical fiber are helpful for Bell' s invention.
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( ) 5. If your knowledge can be in some way with my experience,we are sure to
succeed.
A. substituted B. acknowledged C. declined D. combined
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5. Not after going on a diet for three months，Jane felt very upset. (lose)
節食三個月沒有減輕體重，Jane感到非常沮喪。
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一個英文網站正面向中學生征稿，請你寫一篇英語稿件，介紹"中秋節"及這個節日里的主要活動。
寫作要點：它是中國的傳統節日之一；家人團聚；人們賞月、吃月餅，還有旅游、訪友等
其他活動。
注意：1.詞數120左右;
2.可以適當增加細節，以使行文連貫。參考詞匯：中秋節the Mid-Autumn Festival農歷lunar calendar 賞月enjoy the full moon月餅moon cake
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7. The innocent boy took the advice that he strangers. ( stare )
這位單純的男孩接受了不要盯著陌生人看的建議。
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3. ，the firefighters managed to rescue the little boy from the big fire, (as )
盡管很困難，消防員還是成功地將小男孩從大火中解救了出來。
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