UNIT 5 Period 3(同步训练)
一、单词拼写
1.At first glance, ________(有机的) farming looks much more expensive for the farmer.
2.Everybody is talking about the matter, which is a subject of ________(广泛的) comment.
3.You should allow a little time after a meal for the food to ________(消化).
4.Any significant social change brings about problems and it is ________(极其重要的) to work out proper solutions.
5.Natural gas is another abundant fuel that experts consider an ________(替代物) to gasoline.
6.The principal warned the students not to hang around the corner ________(食品杂货店) store after school.
7.A teacher should be good at drawing inferences about other cases from one ________(例子).
8.Some ready made meals are ________(有营养的) and very easy to prepare.
二、单句语法填空
1.It is worth considering ________ makes “convenience”.
2.What matters most in learning English ________(be) enough practice.
3.The open air celebration has been put off because ________ bad weather.
4.His eyes slowly began to focus ________ what looked like a small dark ball.
5.Tim, may I introduce you ________ my uncle’s secretary, Mary Waller
6.The first step is ________(check) the patient’s breathing.
7.He refused to face the fact ________ he has failed.
8.Farmers often plant crops that use ________(difference) depths of soil to keep it rich.
9.We’d better find a ________(suit) solution that can put sufficient food on the dinner table.
10.I hurt my leg while ________(play) football.
三、完成句子
1.________________________ was that you had a strong teamwork spirit.
我们最欣赏的是,你们有很强的团队精神。
2.________________________ in straight lines is known to all.
光沿直线传播,这是众所周知的事。
3.________________________ in such a short time surprised us all.
他在如此短的时间内写完作文,这使我们所有人惊奇。
4.________________ hasn’t been decided yet.
谁要当我们的班长还没有决定。
5.____________ he has made a very important discovery in chemistry.
他真的在化学方面有一个非常重要的发现。
四、阅读理解
Saturn(土星) is famous for its lovely rings, but a new study suggests the planet has spent most of its 4.5 billion years without them. That’s because the rings are likely only 10 million to 100 million years old, according to a newly published report in the journal Science that’s based on findings from NASA’s Cassini probe(探测器).
Cassini spent some 13 years orbiting Saturn before diving and impacting into its atmosphere. During its final orbits, the spacecraft dove between the planet and its rings. That let scientists measure the gravitational effect of the rings and get a good estimate of the ring material’s mass. What they found is that it’s only about 40 percent of the mass of Saturn’s moon Mimas. This small mass suggests that the rings are relatively young.
“There’s no huge amount of massive material hidden in the rings that we can’t see,” says Philip Nicholoson, a planetary scientist. “The rings are almost pure ice. ” He says the relative youthfulness of Satum’s ring system is something that scientists have come to suspect only recently. “It was easier to believe that it formed at the same time as Saturn and its satellites did,” Nicholson says. “It’s hard to understand how they could have formed that recently. ” It’s possible that the rings are the remains of a comet(彗星) or some other icy object that made a chance encounter with Saturn and got torn up, he says. Or, perhaps one of Saturn’s icy moons got whacked by an impact with a large comet.
Whatever happened, it’s looking more and more likely that Saturn’s splendid rings are a temporary phenomenon that humans are lucky to get to see at all. Previous measurements from Cassini helped show that the rings may be disappearing at a rapid speed, as dusty ice particles(颗粒) get pulled down to Saturn by its gravity. In another 100 million years, Saturn’s most unique feature might be gone.
1.How did scientists estimate the ring material’s mass
A.By analysing the age of the rings.
B.By timing Cassini’s orbiting Saturn.
C.By recording Cassini’s flying speed.
D.By measuring the gravitational effect of the rings.
2.What’s the previous common understanding of Saturn’s rings
A.They are made up of pure ice.
B.They are the remains of a comet.
C.They came into being when Saturn formed.
D.They are a natural phenomenon of all planets.
3.What does the underlined word “whacked” in the third paragraph mean
A.Crashed. B.Separated.
C.Absorbed. D.Pulled.
4.Which of the following can be the best title for the text
A.Saturn Put Rings on It Relatively Recently
B.How Saturn’s Rings Formed Came to Light Finally
C.NASA Detected Icy Object in Saturn’s Rings Recently
D.When Saturn’s Rings Will Disappear Is Being Dug into
五、读后续写
I was a volunteer for an organisation at the beginning of this year. The organisation is aimed at helping children who suffer from cancer. One day, we were asked to raise money for cancer research and programme funding at an event.
Since my friend Lisa was also a volunteer for the organisation, I went to the event with her. There were many people at the event. After seeing our poster, some people came to us and talked with us. But few people donated money. It was a bit hot that day. Both Lisa and I got really upset.
Half an hour later, Lisa started complaining, “I don’t think we can raise much money today. ”
“Don’t worry. The event lasts for three hours. There is still a lot of time left,” I said, though I also thought poorly of our plan to raise much money that day.
While Lisa and I were talking, a little boy of about eight years old came to us. He stood in front of our poster and started reading.
After a while, he asked, “What is cancer?”
I explained what cancer is. Then I said, “Many people around the world are suffering from cancer. It can be really dangerous. More research is needed to learn about it so that people with it can suffer less. That’s why we’re collecting money for it. ”
“Do children suffer from cancer, too?” asked the boy.
“Yes. Many children suffer from cancer. Some of them may die. They need help. ” Lisa said and I nodded.
Hearing that, the boy became sad. Then the boy asked, “How much money have you collected?”
Both Lisa and I were embarrassed to tell him that we didn’t raise much money. At last, we said, “Not much. ”
The boy looked into our donation container and only saw a few one dollar and five dollar bills. The boy said nothing after seeing that and left. Then some girls came to us and we started talking with them. Neither Lisa nor I thought the boy would return. However, about twenty minutes later, the boy did return.
注意:
1.续写词数应为150左右;
2.请按如下格式在相应位置作答。
The boy happily ran to us and asked, “Would you take a donation from children?”
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Both Lisa and I were deeply touched. ____________________________________ _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
参考答案:
一、单词拼写
答案:1.organic 2.widespread 3.digest 4.essential
5.alternative 6.grocery 7.instance 8.nutritious
二、单句语法填空
答案:1.what 2.is 3.of 4.on 5.to
6.to check 7.that 8.different 9.suitable 10.playing
三、完成句子
答案:1.What we appreciated most 2.That light travels
3.That he finished writing the composition
4.Who will be our monitor 5.It’s true that
四、阅读理解
1.D 推理判断题。根据第二段的“That let scientists measure the gravitational effect of the rings and get a good estimate of the ring material’s mass(这让科学家可以测量环的引力效应,并对环的物质质量有一个很好的估计).”可知,科学家是通过测量环的引力效应来估计环物质的质量的。故选D。
2.C 细节理解题。根据第三段的“It was easier to believe that it formed at the same time as Saturn and its satellites did(人们更容易相信它与土星及其卫星同时形成)”可知,以前对土星环的普遍理解是它们是在土星形成时形成的。故选C。
3.A 词义猜测题。根据第三段的“It’s possible that the rings are the remains of a comet (彗星) or some other icy object that made a chance encounter with Saturn and got torn up(土星环有可能是彗星或其他结冰物体的残骸,它们与土星偶遇并被撕裂)”可知,画线词所在句子的意思是“也许土星的一颗冰雪覆盖的卫星被一颗大彗星撞击了”,因此画线词的意思是“撞击”,即Crashed。故选A。
4.A 主旨大意题。通读全文,尤其是第一段可知,本文主要讲的是一项新的研究表明,土星在45亿年的大部分时间里都没有光环,这是因为这些环可能只有1 000万到1亿年的历史,因此本文最好的题目是A项“Saturn Put Rings on It Relatively Recently(土星的光环是最近才出现的)”。故选A。
五、读后续写
One possible version:
The boy happily ran to us and asked, “Would you take a donation from children?” Lisa and I looked at each other. We couldn’t believe such a little boy would care. Though we didn’t believe it, we said “yes”. The boy put his hand in his pocket and took out some five dollar bills. He said, “I just asked for them from my mother. I really want to help the children suffering from cancer. ”
One possible version:
Both Lisa and I were deeply touched. We thanked the boy, but he left soon. Looking at his back, both Lisa and I were greatly encouraged. We wanted to try harder to raise money. So instead of just standing there, we went to people and told them about our programme. At the end of the day, we raised over three thousand dollars, a lot more than Lisa and I had expected in the beginning.