Unit 5 Period 3 同步训练-2021-2022学年高二英语人教版（2019）选择性必修第一册(含答案)

1、UNIT 5 Period 3 （同步训练）一、单词拼写At first glance,（有机的）farming looks much more expensive for the farmer.Everybody is talking about the matter, which is a subject of（广泛的）comment.You should allow a little time after a meal for the food to（消化）.Any significant social change brings about problems and it is（极其重

2、要的）to work out proper solutions.Natural gas is another abundant fuel that experts consider an（替代物）to gasoline.The principal warned the students not to hang around the corner（食品杂货店）store after school.A teacher should be good at drawing inferences about other cases from one（例子）.Some ready made meals a

3、re（有营养的）and very easy to prepare.二、单句语法填空It is worth considering makes “convenience”.What matters most in learning English（be） enough practice.The open-air celebration has been put off because bad weather.His eyes slowly began to focus what looked like a small dark balkTim, may I introduce you my un

4、cles secretary, Mary Waller?The first step is（check） the patienfs breathing.He refused to face the fact he has failed.Farmers often plant crops that use（difference） depths of soil to keep it rich.Wed better find a（suit） solution that can put sufficient food on the dinner table.I hurt my leg while（pl

5、ay） football.三、完成句子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。in straight lines is known to all.光沿直线传播，这是众所周知的事。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。hasnt been decided yet.谁要当我们的班长还没有决定。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。

6、四、阅读理解Saturn（ztM） is famous for its lovely rings, but a new study suggests the planet has spent most of its 4. 5 billion years without them. Thafs because the rings are likely only 10 million to 100 million years old, according to a newly published report in the journal Science thats based on findin

7、gs from NASAs 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 th

8、e ring materials mass. What they found is that its only about 40 percent of the mass of Saturns moon Mimas. This small mass suggests that the rings are relatively young.“Theres no huge amount of massive material hidden in the rings that we cant see, “ says Philip Nicholoson, a planetary scientist. T

9、he 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. Its hard to understand how they could h

10、ave formed that recently. Its 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 Saturns icy moons got whacked by an impact with a large comet.Whatever happened, its looking more and mor

11、e likely that Saturns 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 y

12、ears, Saturns most unique feature might be gone.How did scientists estimate the ring materiafs mass?By analysing the age of the rings.B By timing Cassinis orbiting Saturn.By recording Cassinis flying speed.By measuring the gravitational effect of the rings.Whafs the previous common understanding of

13、Saturns rings?They are made up of pure ice.They are the remains of a comet.C. They came into being when Saturn formed.D. They are a natural phenomenon of all planets.What does the underlined word whacked in the third paragraph mean?A. Crashed.B. Separated.C. Absorbed.D. Pulled.Which of the following

14、 can be the best title for the text?Saturn Put Rings on It Relatively RecentlyHow Saturns Rings Formed Came to Light FinallyNASA Detected Icy Object in Saturns Rings RecentlyWhen Saturns 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.

15、 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 hen There were many people at the event. After s

16、eeing 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, dont think we can raise much money today. ”“Dont worry. The event lasts for three hours. There is still

17、 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 i

18、s. 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. Thafs why were collecting money for it. ”“Do children suffer from cancer, too? ” asked the boy.“Yes Many children suf

19、fer from cancen 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 didnt raise much money. At last, we said, “Not much. ”The boy looked into our d

20、onation container and only saw a few one-dollar and five-dollar bills. The boysaid nothing after seeing that and left. Then some girls came to us and we started talking with them. NeitherLisa nor I thought the boy would return. However, about twenty minutes later, the boy did return.注意：.续写词数应为150左右；

21、.请按如下格式在相应位置作答。The boy happily ran to us and asked, a Would you take a donation from children? ”Both Lisa and I were deeply touched. 一、单词拼写答案：1. organic参考答案:2. widespread 3. digest4. essential5 alternative 6 groceryinstancenutritious二、单句语法填空答案一、单词拼写答案：1. organic参考答案:2. widespread 3. digest4. essenti

22、al5 alternative 6 groceryinstancenutritious二、单句语法填空答案：l.what 2.is3.of4.on5.to6.to check 7.that8.different9.suitablelO.playing答案：1. What we appreciated most 2. That light travels. That he finished writing the composition. Who will be our monitor 5. Its true that四、阅读理解D 推理判断题。根据第二段的 aThat let scientis

23、ts measure the gravitational effect of the rings and get a good estimate of the ring materiafs 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。应选D。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

24、星环的普遍理解是它们是在土星 形成时形成的。应选C。A 词义猜想题。根据第三段的It与 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。应选A。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说明，土星在45亿年的 大局部时间里都没有光环，这是因为这些环可能只有1000万到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