Many of humans' great achievements are in sci...

Many of humans' great achievements are in science and technology. The list is almost endless. The 26.1.(invent) of the airplane has changed our lives. The discovery of antibiotics(抗生素) has saved the lives of millions of people. Can you imagine 27.2.(live) without electricity? What about the printing press? Without the printing press, you wouldn't be reading this. In the last 50 years, there have been great achievements in 28.3.(communicate), such as radios, TVs, computers, the Internet, and smartphones(智能手机). We could probably live without them, but life wouldn't be as 29.4.(interest) as it is now.

What about the arts? The arts have brought 30.5.(please) to many people, but are the Beatles and Bach more important than antibiotics? And is Mickey Mouse as important an achievement as going to space? 31.6.(final), we must not forget humans' early achievements. They used fire for cooking and 32.7.(heat) and invented the wheel. We can't imagine modern life without 33.8.(cook) food and cars.

What are humans' greatest achievements? To answer the question, we need 34.9.(decide) what we mean by “great”. Is it something that 35.10.(make) us rich or happy or save lives? Or is it just something that makes us say “Wow，” like the Great Wall? What do you think?

九年级英语语法填空中等难度题查看答案及解析

China____great achievements in science and technology since 1978.

A. make B. made C. will make D. has made

九年级英语单选题中等难度题查看答案及解析

翻译句子

With the development of science and technology，great changes have taken place to human life．79Some of these changes are great，while some are harmful．So people have lots of arguments about whether science and technology are dangerous or not．

If they are used by bad people，they can bring many problems．Besides，as technology becomes more and more powerful day by day，80许多人会越来越懶惰．Even student study ability and creativity will be weakened

However，just like the saying goes， every coin has two sides．81．There is no doubt that science and technology have made great contributions in many areas．If they are used correctly，they will be good for us．Therefore，the key lies in the user．Responsibility and goodness should never be lost in our heart． Otherwise，the world would be full of danger even we turn back to the Stone Age．

1.____

2.____

3.____

九年级英语英汉互译：整句中等难度题查看答案及解析

1.Zhang Cunhao and Cheng Kaijia are both great 　　　　　 (science).

2.Mary, a friend of 　　　　 (I), is very helpful and modest.

3.Mr and Mrs Green are going to celebrate their 20 years of 　　　　 (marry) tomorrow.

4.It’s 　　　　 (pleasant) to see so much smog in the sky.

5.I think human beings and animals should live together 　　　　 (peace) on the earth.

九年级英语单词拼写困难题查看答案及解析

China’s great achievement of development was made 　　 the people and 　　 the people.

A. by;for B. in;for C. to;as D. by;on

九年级英语单选题简单题查看答案及解析

Grandparents are respected in many human societies.But telling stories about old times and overfeeding grandchildren seem like distinctly human traits (特征).Are these classic grandparent behaviors really limited to human beings? Do any animals know their grandparents the way people do? For most species (物种) on Earth,the answer is NO! “Usually, there just aren't grandparents living anymore when an animal is born,” said Mirkka Lahdenperä, a biologist at the University of Turku in Finland. Even if an animal's grandparents are still alive, most species spread out to avoid competing for resources, so the chances of running into a grandparent are small.

But there are a few exceptions, primarily among mammals (哺乳动物) that live in close social groups. Canadian zoologist Anne Innis Dagg described groups of langur monkeys in India in which older females lived with their daughters and grandchildren. The grandmother langurs have a particular job: they protect the group's babies against hurt from humans, dogs and other monkeys. Some female langurs even give their own grandchildren special treatment, cleaning their fur and stepping in when they play too roughly with other young.

Many whale species, too, travel with their families,including both grandmothers and grandcalves. In groups of sperm whales, according to Dagg, old females help babysit the group's young while their mothers dive (潜水) for food. Orca grandmothers often lead their family members and can live for many years after they stop reproducing. In 2015, scientists suggested that these elder orcas help their grandcalves through hard times, because they remember all the best places to find food.

Female elephants rule the whole family. Calves (幼崽) are typically born into groups led by their grandmothers, who can live to around 80 years old. The female elephants form close relationships, said Lahdenperä, and raise their young together. Lahdenperä found that the calves of young mothers were eight times more likely to survive if their grandmothers lived near them than if they didn't. When the calves' mothers were older and more experienced at raising babies, this beneficial “grandmother effect” disappeared even if the actual grandmothers were still around.

It isn't very clear how elephant grandmothers help their inexperienced daughters, said Lahdenperä. It is believed that they may help nurse their grandcalves. But Lahdenperä thinks that the more likely advantage is the wisdom a grandmother elephant has got during her long lifetime.

And what about grandfathers? Studies of humans in recent years have shown that a living grandfather can improve a person's mental health and well⁃being, said Lahdenperä.

But there are signs of that in the animal kingdom, she said. Male animals seldom socialize with their own children, let alone grandchildren. “Males are usually focusing on producing their own children and aren't providing so much care,” Lahdenperä said.

1.From Paragraph 3, we know that orca grandmothers _______.

A. die after reproducing B. teach the young to dive for food

C. have rich experience D. enjoy travelling with grandfathers

2.The examples of monkeys, whales and elephants show that _______.

A. the “grandmother effect” lasts long in the animal world

B. grandmothers shoulder great responsibilities in their families

C. animal grandfathers can improve grandcalves' mental health

D. most species treat their grandparents like human beings do

3.Which of the following would be the best title for the passage?

A. Animal grandparents are like human grandparents

B. Animal grandmas are born group leaders

C. Are animal grandmas given enough respect?

D. Do any animals know their grandparents?

九年级英语阅读单选困难题查看答案及解析

With the rapid development of our great country, big changes have t1. place in science and technology in recent years. These innovations (创新) have allowed China to catch up with other scientific powerhouses or even lead in certain fields.

Take hybrid rice (杂交水稻) as an e2.. The crop (农作物) has been feeding the country since it was developed. By the end of last year, farmers in over 40 countries all over the w3. had planted more than 7 million hectares (公顷) of the crop.

The Jiaolong, China’s first manned deep-sea research submersible (潜水器), made its debut (初次露面) i4. 2010. It made China the f5. country, after the United States, Russia, France and Japan, to develop deep-sea exploration technology.

China has made great p6.in cloning technology, too. In January this year, Chinese s7.cloned five monkeys from a gene-edited (基因编辑的) macaque (猕猴) for biomedical (生物医学的) research- the first time in the world that this had been done.

Still, China needs to work even h8.in some key fields such as microchip (微芯片) development and engine manufacturing (发动机制造). Firstly, China will attract more talented researchers. S9., the government needs to offer more policy and market support, as w10. as invest (投资) more in human resources, to encourage more innovations.

九年级英语单词填空困难题查看答案及解析

(2017学年瑞安市玉海实验中学九年级期中）Heroes come in all shapes and sizes. Many heroes are not even human, such as dogs, horses and cats. They are so 1.（勇敢的） and helpful that human beings are proud of them, too. Lucca, a 12-year-old, is a great animal hero. She is a retired US Marine Corps dog. On April 5, 2016 she received the Dickin Medal in London, England. And some volunteers will provide free medical care for the　　 2.（生病的）and wounded animals in need. The Dickin Medal was 3.（创建）in 1943 by Maria Dickin. The Medal is the highest prize for animals working in some 4.（战争）in the world.

Lucca is the 5.（第一）U.S. Marine Corps dog to receive the medal. As a dog, Lucca’s work was dangerous. According to the US Marine Corps, Lucca protected the lives of 6.（一千） of soldiers, and no soldiers were killed while she was going around. She completed over 400 dangerous 7.（任务）during six years in Iraq and Afghanistan. She often worked without taking a 8.（休息）. In 2012, she 9.（失去） her front left leg in an explosion while working in Afghanistan.

Lucca is the 66th animal to receive the Dickin Medal. 30 dogs, 10.（包括）Lucca, have got the Medal as well as three horses and one cat. How great they are！

九年级英语单词填空困难题查看答案及解析

—It is reported that many wild animals in the world are_______because of human behavior.

—We must do something to stop people from hunting and selling these animals.

A. in danger　 B. in public　 C. in silence

九年级英语单项填空中等难度题查看答案及解析

Programming Pain

Robots are useful and taking place of humans in some areas because they never get tired and can't feel pain. However, some researchers believe it's a good idea to program robots to feel pain.

Researchers from Leibniz University of Hannover in Germany are working to develop an artificial（人造的）robot nervous system to teach robots how to feel pain. "Pain is a system that protects us," said Johannes Kuehn, one of the researchers. "When we try to avoid the pain, it helps us not get hurt.”

Think about how many injuries you would receive if you couldn't feel pain. Even though pain hurts, it helps us avoid danger and treat our wounds. The same will be true for robots. As a great number of people work closely with robots, the robots must behave in a safer manner. Kuehn believes that by protecting robots from damage（伤害），they'll be protecting people as well. Damage,to robots if left unseen could lead to workplace accidents.

Rather than feel pain, some robots are designed to show pain or see it in others. Asada, an engineer at Osaka University in Japan, and his workmates have made sensors （传感器）that pick up many types of touch signals（信号）.These touch and pain signals can turn into emotions and expressions on a robot’s face. Asada believes that these systems could finally lead to robots seeing the pain on human faces, an important skill for robots designed to care for elderly people, for example.

Antonio Damasio, a professor at the University of Southern California, argues that programming robots with a sense of pain may cause an artificial sense of feeling to develop. But he says that this communication is not the same thing as a robot truly feeling and expressing emotions or pain. If one day, robots could actually feel as humans do, Damasio has a suggestion for the number one rule for robots: Feel good.

1.What does the word in Paragraph 3 refer to?

A.The feeling of pain. B.The injury we receive.

C.An artificial system. D.A new kind of robot.

2.Which is the right process to show and see the pain?

① Turn signals into expressions.

② Notice pain on human faces.

③ Make some sensors.

④ Pick up touch signals.

A.③④①② B.③①②④ C.②③①④ D.②④①③

3.What can express Antonio Damasio's attitude（态度）about the program?

A.Hopeless B.Opposite C.Expected D.Worried

4.The aim of programming robots to feel pain is　 ________

A.to take place of humans B.to avoid human accidents

C.to control robots completely D.to serve humans better

九年级英语阅读单选中等难度题查看答案及解析