1、 Mary won’t keep slim ______she takes exercise every day.
A. unless B. if C. when D. or
2、He left home early only______he was late as he went a wrong way.
A.found B.to find C.finding D.being found
3、The president of the World Bank says he has a passion for China, _______ he remembers starting as early as his childhood.
A．where
B．which
C．what
D．when
4、Although________ as the most dangerous road in our country, China's National Highway 318, is known as the "heavenly road" for its amazing views.
A．regarding
B．to regard
C．regarded
D．regard
5、I wonder why we________ eat out all the time when we can cook our own meals at home.
A．may
B．would
C．should
D．must
6、—Irene, do you really want to go out?
—It may rain. ___________, I will go out; I don’t mind the rain.
A. Anyhow B. Otherwise
C. Somehow D. Therefore
7、The result of the study indicated that it was the type of fat, ______ is often the case, ________ made the difference.
A. as; that B. which; what
C. that; who D. which; that
8、Brian has been studying really hard all the time; _________ he has got an A in each of his subjects.
A. instead B. anyhow C. thus D. rather
9、Is there a bookshop around ______ I can buy an English and Chinese dictionary?
A．which
B．where
C．that
D．what
10、I'll tell you _____ he told me last night.
A. all which B. all what
C. that all D. all
11、The young man, _____ in heavy traffic on the way, got home an hour later than usual.
A. catching B. caught C. having caught D. to be caught
12、I realized I wasn’t really missing out by not ________ checking my phone to see what everyone else was up to.
A．constantly
B．apparently
C．urgently
D．instantly
13、-It's so perfect to perform such an opera in the Forbidden City.
-You can say that again. There could not be a ___________setting.
A.less awesome B.most awesome C.least awesome D.more awesome
14、As an English teacher, I think it necessary listening and speaking every day.
A.practicing B.practice C.to practice D.practiced
15、— Could you turn the TV down a little bit?
— ________. Is it disturbing you?
A．Take it easy.
B．I’m sorry.
C．Not a bit
D．It depends
16、The notice came around two in the afternoon ________ the meeting would be postponed.
A．when
B．that
C．whether
D．how
17、His aunt’s letters _______ his beautiful days when they used to live together in his hometown.
A.clear up B.come up C.catch up D.call up
18、Two died of cold last winter.
A.hundreds old people B.hundred old people
C.hundreds old peoples D.hundred old peoples
19、All of the children ______ in the school play and they are in high spirits.
A．are involving B．involve
C．are involved D．have involved
20、It is important for children ______ more good books.
A. to expose to B. being exposed to
C. to be exposed to D. exposing to
21、 Many teens make risky decisions， such as careless driving or too much drinking． Some of those choices can kill them． Teens may behave in this way because they don't know the possibility of a bad result． Or they may do it because they don't care． In fact， a new study suggests that the second choice is the more likely one．
Wouter van den Bos and Ralph Hertwig are psychologists at the Max Planck Institute for Human Development in Berlin， Germany． They study how people search out information and make decisions according to what they have learned and made an experiment to see if they could solve why teens behave this way． They recruited（招募）105 people， all from 8 to 22 years old． By including different ages， the researchers could test how behavior changes from childhood through to young adulthood．
All played a kind of game． Over and over， they had to choose between taking a guaranteed（确保的）prize of five euros or turning a wheel． The wheel was divided into 10 parts． Some were orange， others blue． If the wheel stopped turning on an orange part， the player won or lost money． This could be between 3 and 32 euros． But if the wheel stopped on a blue part， they got nothing． Each of them played the game 108 times．
① The flve-euro choice was a guaranteed win． It had no risk． However， players who chose to turn the wheel had anywhere from a 10- to 90- percent chance of winning - or losing money． So turning the wheel was a risky choice．
② Teens were more likely to turn the wheel， van den Bos and Hertwig found． The teens didn't care about the lack of information on the risk they were taking． Children and adults， however， avoided those uncertain situations． Instead， they chose the guaranteed reward in the game．
③ "In the teenage years， there is a lot to explore and to learn by exploration，" van den Bos says． Many experiences are new， he says， and teens don't know how they will turn out． "Many of situations are not dangerous and are helpful in becoming an independent adult． So in general， this seems to be good for them，" he says．
④ But， he warns， it's also good to consider whether a behavior may have very harmful results． Where that's the case， he points out， teens should stop to think before they act．
The results are exciting， says Valerie Reyna． A psychologist at Cornell University in Ithaca， N．Y．， she was not involved with the new work． "The most important part of this research is the careful use of lab tasks that separate exploring the unknown from taking risks，" she says．
【1】According to the passage， teens prefer to behave in a risky way because ______ ．
A. they don't care much about the result
B. they don't know the possible result
C. they try to avoid uncertain situations
D. they care about the guaranteed prize
【2】Which of the following is TRUE about the experiment？ ______
A. It studies how people search out information and make risky decisions．
B. Valerie Reyna was excited because she took part in the experiment．
C. People of different ages were included to see how behavior changes．
D. Teens were able to win money when wheels stopped on orange parts．
【3】The researchers think that teens' choices ______ ．
A. are too risky
B. have both good and bad sides
C. do them good
D. have no effect on their life
【4】The sentence "Teenagers' risk-taking behavior is meaningful．" should be best placed in ______ ．
A. ① B. ②
C. ③ D. ④
22、 Disaster! This word really meant that morning. I had a toothache. And I’d been in an argument with a friend. Her words still hurt: “The trouble with you is that you won’t put yourself in my place. Can’t you see things from my point of view?” I shook my head stubbornly — and felt the ache in my tooth. I’d thought I could hold out till my dentist came back from holiday, but the pain was really unbearable. I started calling the dentists in the phone book, but no one could see me immediately. Finally, at about lunchtime, I got lucky.
“If you come by right now,” the receptionist said, “the dentist will fit you in.”
I took keys and rushed to my car. But suddenly I began to doubt about the dentist. What kind of dentist would be so eager to treat someone at such short notice? Why wasn’t he as busy as the others?
In the dentist’s office, I sat down and looked around. I saw nothing but the bare walls and I became even more worried. The assistant noticed my nervousness and placed her warm hand over my ice-cold one.
When I told her my fears, she laughed and said, “Don’t worry. The dentist is very good.”
“How long do I have to wait for him?” I asked impatiently.
“Come on! He is coming. Just lie down and relax. And enjoy the artwork,” the assistant said.
“The artwork?” I was puzzled.
The chair went back. Suddenly I smiled. There was a beautiful picture, right where I could enjoy it: on the ceiling. How considerate the dentist was! At that moment, I began to understand what my friend meant by her words.
What a relief!
【1】Which of the following best describes the author’s feeling that morning?
A．Cheerful.
B．Nervous.
C．Upset.
D．Satisfied.
【2】What made the author begin to doubt about the dentist?
A．The dentist’s agreeing to treat her at very short notice.
B．The dentist’s being as busy as the other dentists.
C．The surroundings of the dentist’s office.
D．The laughing assistant of the dentist.
【3】Why did the author suddenly smile?
A．Because the dentist came at last.
B．Because she saw a picture on the ceiling.
C．Because she could relax in the chair.
D．Because the assistant kept comforting her.
【4】What did the author learn from her experience most probably?
A．Strike while the iron is hot.
B．Have a good word for one’s friend.
C．A friend in need is a friend indeed.
D．Put oneself in other’s shoes.
23、DNA from fossils (化石) has transformed the study of human and animal evolution, revealing unknown relationships, tracing early migrations, and exposing ancient inter-species mating. Yet for humans, the entire field depends on just 23 ancient genomes (基因组), 18 of them from Neanderthals. Recently, scientists unlocked a much larger trove (宝库) of ancient DNA: from the soil of cave floors. This year, for the first time, cave dirt yielded DNA once housed in the nucleus of human cells, and researchers used such “dirt DNA” to reconstruct the identity of cave dwellers around the world.
The new work borrows from the study of environmental DNA from living species. To find out which organisms inhabit lakes, forests, and other places, scientists collect the free-floating DNA they shed into air, water, and soil. By 2003, evolutionary geneticists showed discarded (丢弃的) DNA could exist for thousands of years. It was used by researchers in 2015 to help reconstruct entire ancient ecosystems, even in the absence of fossils. But much of that DNA comes from mitochondria (线粒体), the cell’s power plants, which store tiny pieces of information of genetic material. Thanks to new techniques, scientists can now comb ancient soils for nuclear DNA, which carries the fall instructions for life.
This year, scientists successfully used nuclear DNA to chart the human and animal occupation of three caves. In Spain’s Estatuas Cave, nuclear DNA revealed the genetic identity and sex of humans who lived there 80,000 to 113,000 years ago, and suggested one line age of Neanderthals replaced several others after a glacial period that ended 100,000 years ago. In 25,000-year-old soil from Georgia’s Satsurblia Cave, scientists found a female human genome from a previously unknown line of Neanderthals, along with the genetic traces of a bison and a now-extinct wolf. And by comparing 12,000-year-old black bear DNA from Mexico’s Chiquihuite Cave with that of modern bears, scientists discovered that after the last ice age, the cave bears’ descendants (后代) migrated as far north as Alaska.
Techniques for extracting and sequencing nuclear DNA from ancient soils are still improving. As they do, researchers hope to answer even more questions about the rise and fall of ancient species.
【1】What does the author think of fossil DNA study?
A．It is outdated.
B．It is improving.
C．It is revolutionary.
D．It is challenging.
【2】What do we know about nuclear DNA?
A．It only exists in human cells.
B．It can be found on cave floors.
C．It contains little information about life.
D．It has a short life outside of human cells.
【3】Why are the examples given in Paragraph 3?
A．To show scientists’ achievements in ancient soil DNA study.
B．To introduce some recent scientific discoveries in nuclear DNA.
C．To prove how powerful nuclear DNA is in identifying ancient life.
D．To help understand what ancient soil DNA can do in genetic study
【4】What is the best title for the text?
A．Fossil DNA Comes to an End.
B．Fossil DNA Already in Bloom.
C．Ancient Soil DNA Comes of Age.
D．Ancient Soil DNA Still in the Dark.
24、Get a taste of the amazing world of engineering
Do you want to help shape the future of everything from entertainment and transport to sport and the environment? Then you might want to think about the fascinating world of engineering. Tomorrow's Engineers Week is running 4-8 February 2020, and is the perfect time to get an idea of what engineering is all about.
Engineers are the people who use scientific knowledge, ranging from long-established scientific laws to cutting-edge discoveries, to solve problems and improve life for all of us. Tomorrow's Engineers Week aims to get young people interested in this exciting career. It also wants to change the way we think about engineers.
One place to find out more about engineers is the website thisisengineering.org.uk, where you can meet 16 young engineers with amazing and different jobs. There's Halvard, who builds farm robots; and Olivia, who uses her chemical engineering skills to create soaps and shampoos kind to the skin and the environment. Alice digs train tunnels deep underground. Michelle builds rides. As a child, she loved these thrilling rides. At the age of 14, she attended a lecture on roller coaster design, and then she realized that engineering was a great way to turn her passion into her career.
If you want to meet some inspirational engineers, ask if your school has signed up to take part in the Big Assembly (大型集会) on 6 February. Don't worry if not, though, you can check it out yourself afterwards on the tomorrowsengineers.org.uk website.
【1】The goal of Tomorrow's Engineers Week is to________.
A．introduce young engineers
B．announce the latest discoveries
C．show the future work of engineers
D．attract the youth' s interest in engineering
【2】Which of the engineers fancies building roller coasters?
A．Halvard.
B．Olivia.
C．Alice.
D．Michelle.
【3】What is the main purpose of the passage?
A．To explain what engineering is all about.
B．To advertise Tomorrow's Engineers Week.
C．To encourage schools to sign up for an assembly.
D．To introduce the website thisisengineering.org.uk.
25、My son, Ben, was 23 when I lost him in an accident. As an outdoor lover, he ________ felt at home when he was outside. In his ________, the year after his passing away, I ________ 48 of New Hampshire’s tallest mountains. While ________ this unimaginable loss, I have managed to achieve inner ________ during the journey. Every step, path and summit — whether rough or________ — has been a way to make us emotionally strong again.
About a month after Ben’s death, my husband and I ________ climbing Carter Dome in the White Mountains, ________ with sorrow, since my son loved mountain climbing. ________, standing on the summit, sorrow seemed to fade into the ________ and timeless expanse (浩瀚) for a moment. In the silence, I felt quiet. The next weekend ________ us on Mount Cannon. Then Mount Flume, Mount Liberty and so on.
I hiked my 48th and ________ summit six days before the anniversary of Ben’s death. Then I ________ the top of a mountain is the only place to ________ my sorrow. It’s true that part of my heart is ________ damaged, but at the summit, I am able to ________ and hold on, because I know he lives in the constant mountains. These days, I climb not to hide, but to ________. I find Ben, and I also find myself: someone ________ now reassembling into someone braver. Mountain climbing is both tiring and ________, and it teaches me that sorrow and joy can actually ________.
【1】
A．just
B．always
C．seldom
D．even
【2】
A．memory
B．way
C．place
D．honor
【3】
A．toured
B．selected
C．pictured
D．topped
【4】
A．pushing aside
B．struggling with
C．escaping from
D．taking to
【5】
A．passion
B．happiness
C．peace
D．strength
【6】
A．challenging
B．inaccessible
C．tiring
D．smooth
【7】
A．started
B．imagined
C．risked
D．quit
【8】
A．equipped
B．connected
C．overcome
D．covered
【9】
A．Thus
B．Instead
C．Anyway
D．However
【10】
A．strange
B．silent
C．harmonious
D．noticeable
【11】
A．found
B．delivered
C．drove
D．got
【12】
A．extra
B．final
C．favourite
D．secret
【13】
A．realized
B．responded
C．noted
D．acknowledged
【14】
A．express
B．hide
C．hold
D．track
【15】
A．merely
B．immediately
C．permanently
D．rarely
【16】
A．think ahead
B．make out
C．see sense
D．let go
【17】
A．compete
B．seek
C．insist
D．fight
【18】
A．discouraged
B．confused
C．broken
D．sunk
【19】
A．convincing
B．interesting
C．satisfying
D．inspiring
【20】
A．coexist
B．cooperate
C．count
D．compete
26、阅读下面材料，根据其内容和所给段落开头语续写两段，使之成为一篇完整的短文。
When I hear people showing off of a work as yet undone, and trying to anticipate the credit which belongs only to actual achievement! Call to mind that scene by the riverside and the wise caution of my uncle. Our uncle who lived with us was a quiet, good-natured man, much given to hunting and fishing; and it was one of the pleasures of our young life to accompany him on his trips to Great Hill, Brandy-brow Woods, the Pond, and, best of all, to the Country Brook. We were quite willing to work hard in the cornfield or the dry grass stack (垛) to finish the necessary day’s labor in season for an afternoon wander through the woods and along the riverside.
I remember my first fishing outing as if it were but yesterday. I have been happy many times in my life, but never more intensely so than when I received that first fishing pole from my uncle’s hand, and walked with him through the woods and grasslands. It was a still, sweet day of early summer; the long afternoon shadows of the trees lay cool across our path; the leaves seemed greener, the flowers brighter, the birds merrier, than ever before.
My uncle, who knew by long experience where the best spots of fish were, considerately placed me at the most favorable point. I threw out my line as I had so often seen others, and waited anxiously for a bile, moving the bait (诱饵) in rapid drags on the surface of the water to copy the leap of a frog. Nothing came of it. “Try again,” said my uncle. Suddenly he bait sank out of sight. “Now for it,” thought I; “here is a fish at last.” I made a strong pull, and brought up a mess of weeds. Again and again 1 cast out my line with aching arms, and drew it back empty. I looked at my uncle appealingly. “Try once more,” he said; “we fishermen must have patience.”
注意：
1.续写词数应为150左右：
2.请按如下格式在答题卡的相应位置作答。
Suddenly something drew my line, and swept off with it into deep water.
_____________________________________________________________________________________________________________________________________________________________
But my uncle was sure that there were more fish in the river.
_____________________________________________________________________________________________________________________________________________________________