英语周报20182022期答案

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In 1752, three years after two Scotsmen, Alexander Wilson and Thomas Melville, fastened thermometers to kites to record the temperature of clouds, Benjamin Franklin made his famous experiment with a kite, a string, and a key. Franklin hoped to show that nature’s tremendous displays of electricity in lightning were the same thing as the feeble electric sparks scientists of the day were producing in their laboratories. He built a square kite to which he attached an iron wire. He flew the kite with a hemp string(麻线), and near the base of the string he tied a large brass key. The kite rose into a dark thundercloud, where the iron wire picked up electrical charges. Franklin noticed that the strands of the string(绳串) were beginning to stand up with electricity. As rain wet the string, it conducted more electricity. Standing in the shelter of a shed, Franklin cautiously reached out his finger to touch the brass key. A series of sparks jumped from the key to his finger. He thus proved that lightning and electricity are the same. We now know that this experiment was a dangerous one, for Franklin might have been killed by a bolt of lighting.

1.The best title for this passage is ________.

A. The Discover of Electricity

B. The kite and Science

C. Franklin, a Great Scientist

D. Franklin’s Experiment with Lightning

2.According to the passage, Benjamin Franklin ________.

A. recorded the temperature of clouds

B. was killed by a bolt of lightning

C. proved that lightning and electricity have the same essential nature

D. proved that lightning can be controlled by man

3.Two Scotsmen experimented with kites in ________.

A. 1752 B. 1746

C. 1749 D. 1755

4.Franklin did not use a ________.

A. string B. wire

C. thermometer D. key

5.The fact that Franklin was not injured was apparently due to ________.

A. wisdom B. luck

C. the materials D. the shed’s protection

试题答案

1.D

2.C

3.C

4.C

5.B

【解析】

试题分析：文章主要介绍了富兰克林做的实验。为了证明闪电和实验室里产生的电具有相同的性质，富兰克林用一个风筝把闪电传导到铜制的钥匙上。富兰克林的实验是成功的，但以现代人的视角来看，富兰克林的行为是非常危险的，因为闪电可能会击中他。

1.Benjamin Franklin made his famous experiment with a kite, a string, and a key”和倒数第二行“He thus proved that lightning and electricity are the same.”可知，文章主要讲的是富兰克林用闪电做的实验，故选D。

2.Alexander Wilson and Thomas Melville, fastened thermometers to kites to record the temperature of clouds”排除A；根据最后一句“We now know that this experiment was a dangerous one, for Franklin might have been killed by a bolt of lighting.”可知，富兰克林没有被闪电杀死，但是他做的实验是很危险的，排除B；根据第三行“Franklin hoped to show that nature’s tremendous displays of electricity in lightning were the same thing as the feeble electric sparks”和倒数第二行“He thus proved that lightning and electricity are the same.”可知，富兰克林证明了闪电和电具有相同的性质，故选C。

3.In 1752, three years after two Scotsmen…”可知，三个苏格兰人是在比1752年早三年的时候做的实验，即1749年，故选C。

4.Benjamin Franklin made his famous experiment with a kite, a string, and a key”可知，富兰克林的实验材料是细绳、金属线、风筝和钥匙，故选C。

5.for Franklin might have been killed by a bolt of lighting”中的“might”可知，富兰克林当时有被闪电杀死的危险，因为铜制的钥匙是可以导电的，躲在棚下并不能确保不会被闪电击中，富兰克林没有受伤是因为运气，故选B。

考点：人物类短文阅读

Leave your key with a neighbor _____you lock yourself out one day.

A. ever since B. even if

C. soon after D. in case

试题答案

D

【解析】

试题分析：考查词组辨析。A：ever since自从；B：even if即使；C：soon after不久；D：in case以防万一。句意：把钥匙留给邻居的目的是防止有一天把自己关在门外。这里主句是祈使句，从句时是in case引导的条件状语从句。根据句意，故选D。

考点：考查词组辨析

.英语周报20182022期答案。