TB 1Unit 2Growing pains.单项填空1Not until the motorbike looked almost new repairing and cleaning it.Ahe stoppedBdid he stopCstopped heDhe did stop2It is really that the pyramids are built of stones several tons each.Asurprising；weighingBsurprised；weighedCsurprising；weighedDsurprised；weighing3You have no idea how she finished the relay race her foot wounded so much.AforBwhenCwithDwhile4Mr. Li didnt believe the reason for his being late for class.Ahe explainedBthat he expressedChow he explainedDwhy he expressed5Many occasionsbirthdays，awards，graduations with flowers.Ais markedBare markedChave markedDhad marked6The man insisted a taxi for me even though I told him I lived nearby.AfindBto findCon findingDin finding7The students are forbidden，unless they have special passes， after 11 pm.Ato stay outBof staying outCstaying outDnot to stay out8The hurricane damaged many houses and business buildings； ，it caused 20 deaths.Aor elseBthereforeCafter allDbesides9His suggestion to see the art exhibition interested every one of us.Athat we goBwhich we should goCthat we would goDwe should go10Last summer I took a course on poisonous gases.Ahow to deal withBwhat to deal withChow to be dealt withDwhat to be dealt with11He was to be a musician，but he became a lawyer.AthoughtBsaidCconsideredDsupposed12Why are you looking pleased?Oh，Ive just had a job .AofferedBofferingCto offerDbeing offered13 youve got a chance，you might as well make full use of it.ANow thatBAfterCAlthoughDAs soon as14 production up by 60%，the company has had another excellent year.AAsBForCWithDThrough15Who would you like to have with you?Ato goBgoingCgoDwent.阅读理解Scientists have created a way to control a robot with signals from human brain.By generating the proper brainwavespicked up by a cap with electrodes(电极) that sense the signals and reflect a persons instructionsscientists can instruct a humanoid(类人的) robot to move to specific locations and pick up certain objects.The commands are limited to moving forward，picking up one of two objects and bringing it to one of two locations.The researchers have achieved 94 percent accuracy between the thought commands and the robots movements.“This is really a proofofconcept demonstration，” said Rajesh Rao，a researcher from the University of Washington who leads the project.“It suggests that one day we might be able to use semiautonomous robots for such jobs as helping disabled people or performing routine tasks in a persons home.”The person wearing the electrode cap watches the robots movements on a computer screen through two cameras installed on and above the robot.When the robots cameras see the objects that are to be picked up they pass on the information to the users computer screen.Each object lights up randomly on the computer screen.When a person wants something picked up and it happens to light up，the brain registers surprise and sends this brain activity to the computer and then to the robot.The robot then proceeds to pick up the object.A similar algorithm(计算程序) is used to decide where the robot will go.“One of the important things about this demonstration is that were using a noisy brain signal to control the robot，” Rao said.“That means we can only obtain brain signals indirectly from sensors on the surface of the head，not where they are generated deep in the brain.As a result，the user can only generate highlevel commands such as indicating which object to pick up or which location to go to，and the robot needs to be autonomous enough to be able to execute such commands.”In the future，the researchers hope to make the robots more adaptive to the environment by having them carry out more complex commands.16What is special about the robot introduced in the passage?AIt is controlled by human thoughts.BIt can be made humanoid.CIt can be used to help the disabled.DIt has high intelligence itself.17Which of the following is true about the robot?AIt can move forward and backward and pick up two objects at the same time.BIt can move forward，pick up both objects and bring them to either location.CIt can only move forward，pick up one object and put it in one location.DIt can read all human thought demands and do as instructed.18What Rao said suggests that the new robot .Ais still at its early stage of developmentBwill be widely used in our daily routine soonCis autonomous enough to complete complex commandsDis only limited to doing routine work at home19