课后练习：

1. It is an early step toward a robo-carthatcan drive itself, perhaps .

A. better than you B. better than you can C. better you can

2. The TTS run will demonstrate the car can take curvesas fast asa human driver—withoutdriving offa cliff.

A. as B. that C. when D.whether

3. The carwill be guided byadifferential GPS system that corrects errorsarisingin global positioning satellite signals they travel through the ionosphere and troposphere.

A. as B.that C.what D. where

4. Second, the car needs collisions.

A. to beable to avoid B.being able to avoid

C. to be able to avoiding

5. Someof these capabilities have already hit the street, and others % in tests.

A. hasbeen demonstrated B.have been demonstrated

C.have demonstrated

6. GMenvisions a system connects intelligent carstoeach otherand toremote servers in a vast, moving peer-to-peer network that would let them efficiently and in sync.

A. that; to travel B. which; travel C. where; travel

D. that; travel

7. How much control you want to turn overto the car(主语)may depend on your age and .

A.where are you going B. where you are going

C. where do you go to D. that you are going

8. Taking the fun out of the driving（主语）is not ourmain goal—we'd like to .

A. help people to enjoy to drive B. help people enjoy to drive

C. help people enjoy driving D.help people enjoying to drive

答案：请在课文中寻找。

考点：使役动词是表示使、令、让、帮、叫等意义的“不完全”及物动词，主要有make(使,令)，let(让)，help(帮助)，have(叫)等 ，其后的不定式“不带to”。