() 4. It's good advice that of the twins wants to take it. A. so;either B. such a;either C. such a;both D. such;either 题目和参考答案——青夏教育精英家教网—

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() 4. It's good advice that of the twins wants to take it.

A. so;either B. such a;either C. such a;both D. such;either

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相关题目

单项填空

() 1. —Listen!Someone is crying upstairs.

Oh, must be my baby sister Meimei. She must be hungry.

A. it B. she C. this D. he

() 5. , why not try some local food and see some places of interest?

A. While your stay here B. During your stay here

C. When your stay here D. During you stay in here

2. Our country havS already achieved a lot in space (技术) .

9. I heard that there would be a book (展销会) in the school hall next week.

四、阅读理解

What do you usually do when a flying insect lands on your arm? You may blow it away. But what if that insect is a ladybug (瓢虫) ？

It is possible that you would let it stay. What is it about ladybugs that we like?.

Farmers once thought ladybugs were a good lucky sign. A ladybug in the field meant the crops would be successful and that the weather would be good. The farmers may have thought too highly of such a small bug,but in fact ladybugs do help out with the crops. They eat harmful insects.

Actually,it is not the adult ladybug that eats other insects. It's the baby ladybug. When the baby ladybugs hatch (醉化) ，they are very hungry and will eat mites,aphids,mealy bugs,green flies,and other crop-destroyers. In the 1800s,ladybugs were brought all the way from Australia to California and set free among orange trees that were dying from being eaten by insects. They completely saved all the trees.

Ladybugs go about their daily business without worrying much about anything. Very few birds or insects will eat a ladybug because it gives of a dangerous fluid (液体) . Ladybugs also protect themselves by playing dead. They fall off leaves and never move until their attacker goes away.

So the next time you see a ladybug,think about what it may be doing. Maybe it is off to save an orange tree. Maybe its next move will be to roll off a leaf and play dead or stand up (o a bird about 100 times its size. Maybe it's letting you know that the weather will be good tomorrow. Who knows? Ladybugs are special that way.

() 1. I adybugs were brought from Australia to California in the 1800s to .

A. add more ladybugs to area B. report the weather for farmers

C. act as a lucky sign of good crops D. save orange trees by eating insects

() 2. From the passage we know that .

A. it's the adult ladybug that eats most of the harmful insects

B. ladybugs often roll off a leaf and play dead to attack the birds

C. ladybugs can give off a dangerous fluid to protect themselves

D. the baby ladybug mainly eats mites,aphids,mealy bugs,and oranges

() 3. The underlined phrase stand up to" most probably means .

A. watch B. support C. save D. fight

() 6. —How do you usually go to work,Mrs Zhang?

I ride a bike,but now I there to exercise.

A. used to;am used to walk B. was used to;am used to walking

C. used to;am used to walking D. was used to;is used to walk

阅读理解

Since the 1970s,scientists have been searching for ways to connect the brain (大脑) with computers.Brain computer interface (BCI) technology could help people with disabilities send commands (命令) to machines.

Recently,two scientists,JoSe Millan and Michele Tavella from the Federal Polytechnic School in Lausanne,Switzerland,show a small robotic wheelchair (轮椅) directed by a person's thoughts.

In the laboratory,Tavella controlled the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched and guided it with his thoughts.

“Our brain has billions of body cells. These send signals (信号) through the spinal cord (脊髓) to the body part to give us the ability to move. But spinal cord injuries (脊柱受伤) can prevent these weak signals from reaching the body part， Tavella says.Our system allows disabled people to communicate with outer world and also to control machines."

The scientists designed a special cap for the user. This cap picks up the signals from the scalp (头皮) and sends them to a computer. The computer finds meanings of the signals and controls cap the wheelchair with an engine.

Prof. Millan,the team leader,says the practical possibilities that BCI technology offers to disabled people can be grouped in two kinds： communication,and controlling objects. One example is this wheelchair.

He says his team has two goals. One is testing with real patients to prove that this is a technology they can get advantages from. And the other is to make sure that they can use the technology for long.

() 1. BCI is a technology that can .

A. help to make computer systems more modern

B. connect the human brain with computers

C. help the disabled to be healthier

D. control a person's thoughts

() 2. Which of the following shows the path of the signals devScribed in Paragraph 5 ?

A. scalp— computer—cap— wheelchair

B. computer- cap— scalp— wheelchair

C. scalp— cap— computer— wheelchair

D. cap— computer—scalp—wheelchair

() 3. The team will test with real patients to .

人 make money from them B. prove the technology useful to them

C. make them live longer D. learn about their physical condition

() 4. Which of the following would be the best title for the text?

A. Switzerland,the BCI Research Center

B. New Findings About How the Human Brain Works

C. BCI Could Mean More Freedom for the Disabled

D. Robotic Vehicles Could Help to Cure Brain Sickness

() 3. 一Who is knocking at the door? —Perhaps Tom.

A. he's B. she's C. it's D. this is

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