They exchanged g______(问候) and got down to business. (根据汉语意思及首字母完成句子)
A walking house is ______(有能力的) of using GPS technology to travel to different places. (根据汉语意思及首字母完成句子)
All d______(捐献) blood is tested for HIV and other infections. (根据汉语意思及首字母完成句子)
In a school or college, c______(核心) subjects are a group of subjects that have to be studied.(根据汉语意思及首字母完成句子)
Hardship comes in different shapes and sizes. But few things in life are as _______ as feeling cut off from the people we love.
Recently, while _______ against the COVID-19, my grandkids and I have to stay indoors and started _______ via Wechat. Mostly, I read to them because I love doing it, but I also do it for their parents' mental health. Besides having to stay indoors, they are _______ to homeschool their kids, who can't go to school or play with their friends.
Reading to each other is an age-old practice to me. It has _______ and healing (治愈的) power especially in current situation. When we read, we see the words with our eyes. But hearing them read is a different _______, we just need to be quiet and listen. Sometimes, the voice and the love it_______ mean far more than the words. Today, I wechatted with my grandkids, Ran and Wey, and read them a book my kids loved long ago, and they thought it _______, frequently bursting out laughing.
Now more than ever, while keeping a safe distance, we all need to _______ each other. Sometimes the words we read are so powerful that they will never be ________.
1.A.life-changing B.heartbreaking C.risk-taking D.troublemaking
2.A.sheltering B.arguing C.going D.warning
3.A.chatting B.reading C.drawing D.singing
4.A.permitted B.selected C.invited D.forced
5.A.comforting B.suffering C.controlling D.opposing
6.A.atmosphere B.experience C.exploration D.choice
7.A.identifies B.harvests C.defends D.involves
8.A.annoying B.incredible C.funny D.complicated
9.A.sing high praise for B.show respect for C.give way to D.hold on to
10.A.considered B.changed C.forgotten D.expected
Franklin’s Experiment: How Much Is True?
Benjamin Franklin’s famous lightning experiment has introduced generations of children to science. 1.
The well-known story is that Franklin flew a kite during a storm in 1752. At that time, there was much interest in electricity. People wanted to know if lightning was really produced by electricity. 2. He raised the kite with a piece of string tied to it. A metal key was attached to the string. A flash of lightning hit the kite, and electricity was conducted through the string to the key. 3. This, he said, proved that lightning was a form of electricity.
For years, schools have taught this story and it has inspired us and taught us that scientific experiments are important to establish the truth and to contribute towards later scientific discoveries and inventions.
However, neither the story nor the details of the experiment are entirely true. Although it has been proved that Franklin’s experiment took place, more than one scientist has questioned what really happened. 4. But scientists all agree that if Franklin had actually touched the key, he would certainly have died from the electric shock.
Scientists often question accepted ideas because they want to establish the facts. Some have even questioned the story about the apple that fell on Newton’s head and led him to come up with his theory of gravity.
5. But in science, facts should be proved by experiments and research, and we should not always believe everything we read or hear — even if it is a great story.
A.Franklin was one of them.
B.The detail about the string and the key is true.
C.It’s true that many discoveries start with an experiment.
D.Admittedly, fiction is often more interesting than the truth.
E.Franklin then touched the key with his finger and got an electric shock.
F.However, new research suggests that the story may be fiction instead of fact.
G.This experiment proves beyond any doubt that lightning is an electric phenomenon.
