Today was the day of trying the new boat on the river. Nella jumped out of bed, got dressed quickly and woke up her brother Jed.

After 　1　 Nella and Jed arrived at the riverbank and 　2　 the new blue boat waiting for them. They got into the boat and packed their picnic under the 　3　. Nella started the engine and 　4　 they went into the wide, brown and unknown 　5　 of the river.

The boat sounded 　6　 round a bend in the river. On the distant sandbank they saw a long dark creature 　7　 in the sun. It opened one eye at them and then suddenly disappeared into the 　8　.

“What was that?” shouted Jed.

“It looked like a crocodile to me!” said Nella. “We’d better be 　9　. ”

Just as they came round the next 　10　, the engine 　11　 and came to a stop. Nella 12　 to start the engine again. But it wouldn’t start. They were 　13　.

“Let’s get the wooden oars,” said Jed. “Maybe we can push the boat free.

They tried but failed.

“We’re stuck on a 　14　,” said Nella. “We’ll just have to sit here having our 　15　 and wait for the water to 　16　. ”

“It’s boring!” said Jed.  

Suddenly, they felt the boat move. It moved slowly off the sandbank. And the engine started again. Just at the same time they noticed a black   17    by the boatside and in no time it disappeared in the brown water ahead.

They   18   their journey down the river. It was so exciting.

At noon they saw a small river     19    off the main course. It wasn’t on the map. “Let’s    60   in there!” said Nella.

The boat turned into the smaller channel. On both sides grew thick unknown trees.

1．A．meal                     B．breakfast             C．dinner                 D．lunch

4．A．away                    B．around                C．on                      D．up

5．A．flow                     B．flood                   C．direction              D．position

6．A．smoothly               B．normally              C．badly                  D．hardly

7．A．walking                 B．lying                   C．running               D．sleeping

8．A．sands                    B．woods                C．air                      D．water

9．A．serious                  B．brave                  C．careful                D．slow

10．A．bend                   B．river                    C．animal                 D．boat

11．A．put out                B．broke down         C．gave in                D．got off

12．A．planned               B．managed              C．intended              D．tried

13．A．stuck                  B．delayed                C．stopped               D．kept

14．A．river                   B．creature               C．sandbank             D．stone

15．A．rest                     B．picnic                  C．sightseeing          D．fun

16．A．fall                      B．come                  C．rise                     D．run

17．A．snake                  B．fish                     C．shadow               D．figure

18．A．continued            B．started                 C．ended                  D．went

19．A．separating            B．leading                C．dividing               D．leaving

20．A．observe               B．watch                 C．explore                D．play

Today was the day of trying the new boat on the river．Nella jumped out of bed, got dressed quickly and woke up her brother Jed．

After 　1　 Nella and Jed arrived at the riverbank and 　2　 the new blue boat waiting for them． They got into the boat and packed their picnic under the 　3　．Nella started the engine and 　4　 they went into the wide, brown and unknown 　5　 of the river．

The boat sounded 　6　 round a bend in the river． On the distant sandbank they saw a long dark creature 　7　 in the sun． It opened one eye at them and then suddenly disappeared into the 　8　．

“What was that?” shouted Jed．

“It looked like a crocodile to me!” said Nella．“We’d better be 　9　．”

Just as they came round the next 　10　, the engine 　11　 and came to a stop．Nella 　12　 to start the engine again． But it wouldn’t start． They were 　13　．

“Let’s get the wooden oars,” said Jed． “Maybe we can push the boat free．

They tried but failed．

“We’re stuck on a 　14　,” said Nella. “We’ll just have to sit here having our 　15　 and wait for the water to 　16　．”

“It’s boring!” said Jed． 

       Suddenly, they felt the boat move .It moved slowly off the sandbank. And the engine started again. Just at the same time they noticed a black   17     by the boatside and in no time it disappeared in the brown water ahead.

       They     18   their journey down the river. It was so exciting .

       At noon they saw a small river     19    off the main course. It wasn’t on the map . “Let’s    20   in there!” said Nella.

       The boat turned into the smaller channel .On both sides  grew thick unknown trees.

1．A．meal                     B．breakfast            C．dinner                  D．lunch

2．A．Realized                B．discovered          C．found                   D．thought

4．A．away                    B．around               C．on                       D．up

5．A．flow                     B．flood                  C．direction               D．position

6．A．smoothly               B．normally             C．badly                   D．hardly

7．A．walking                 B．lying                  C．running                D．sleeping

8．A．sands                    B．woods               C．air                       D．water

9．A．serious                  B．brave                 C．careful                 D．slow

10．A．bend                   B．river                   C．animal                  D．boat

11．A．put out                B．broke down        C．gave in                 D．got off

12．A．planned               B．managed             C．intended               D．tried

13．A．stuck                  B．delayed               C．stopped                D．kept

14．A．river                   B．creature              C．sandbank              D．stone

15．A．rest                     B．picnic                 C．sightseeing           D．fun

16．A．fall                      B．come                 C．rise                      D．run

17．A．snake                  B．fish                    C．shadow                D．figure

18．A．continued            B．started                C．ended                   D．went

19．A．separating            B．leading               C．dividing                D．leaving

20．A．observe               B．watch                C．explore                 D．play

Today was the day of trying the new boat on the river. Nella jumped out of bed, got dressed quickly and woke up her brother Jed.

After 　1　 Nella and Jed arrived at the riverbank and 　2　 the new blue boat waiting for them. They got into the boat and packed their picnic under the 　3　. Nella started the engine and 　4　 they went into the wide, brown and unknown 　5　 of the river.

The boat sounded 　6　 round a bend in the river. On the distant sandbank they saw a long dark creature 　7　 in the sun. It opened one eye at them and then suddenly disappeared into the 　8　.

“What was that?” shouted Jed.

“It looked like a crocodile to me!” said Nella. “We’d better be 　9　. ”

Just as they came round the next 　10　, the engine 　11　 and came to a stop. Nella 　12 to start the engine again. But it wouldn’t start. They were 　13　.

“Let’s get the wooden oars,” said Jed. “Maybe we can push the boat free.

They tried but failed.

“We’re stuck on a 　14 ,” said Nella. “We’ll just have to sit here having our 　15　 and wait for the water to 　16　. ”

“It’s boring!” said Jed.　

Suddenly, they felt the boat move. It moved slowly off the sandbank. And the engine started again. Just at the same time they noticed a black 　17　 by the boatside and in no time it disappeared in the brown water ahead.

They 　18 their journey down the river. It was so exciting.

At noon they saw a small river 　　19　 off the main course. It wasn’t on the map. “Let’s　 20 in there!” said Nella.

The boat turned into the smaller channel. On both sides grew thick unknown trees.

1．A．meal　　　　 B．breakfast　 C．dinner　　　 D．lunch

4．A．away　　　　 B．around　　　 C．on　　　　　 D．up

5．A．flow　　　　 B．flood　　　 C．direction　　　　　　　 D．position

6．A．smoothly　　 B．normally　　 C．badly　　　 D．hardly

7．A．walking　　　 B．lying　　　 C．running　　 D．sleeping

8．A．sands　　　　 B．woods 　　　 C．air　　　　 D．water

9．A．serious　　　 B．brave　　　 C．careful　　 D．slow

10．A．bend　　　　 B．river　　　 C．animal　　　 D．boat

11．A．put out　　 B．broke down　 C．gave in　　 D．got off

12．A．planned　　 B．managed　　 C．intended　　　　　　　　 D．tried

13．A．stuck　　　 B．delayed　　 C．stopped　　 D．kept

14．A．river　　　 B．creature　　 C．sandbank　　　　　　　　 D．stone

15．A．rest　　　　 B．picnic　　　 C．sightseeing D．fun

16．A．fall　　　　 B．come　　　　 C．rise　　　　 D．run

17．A．snake　　　 B．fish　　　　 C．shadow　　　 D．figure

18．A．continued　 B．started　　 C．ended　　　 D．went

19．A．separating　 B．leading　　 C．dividing　　　　　　　　 D．leaving

20．A．observe　　 B．watch　　　 C．explore　　 D．play

阅读理解

阅读下面短文，从每题所给四个选项中选出最佳答案。

　　Portable electronics that can be carried about easily are only as good as their batteries and, let's face it, batteries aren't very good, especially when compared with, say, petrol, which packs 100 times a battery's energy into an equal space. That's why a large group of mechanical engineers(centered at the Massachusetts Institute of Technology, but with partners at other universities and companies) are hard at work in an effort to replace batteries with a tiny engine that runs on fuel. Imagine a battery－free life! W hen the fuel runs out in your laptop or mobilephone, you just fill up and go.

　　The engine, about the size of a ten－cent coin, starts with a combustion chamber(燃烧室)that burns hydrogen(氢). Its tiny parts are etched onto silicon wafers(硅片) in the same manner that computer parts are imprinted onto integrated circuits(集成电路). The first engine is made up of five wafers. And since these wafers could be produced in much the same way as computer chips, they could probably be produced quite cheaply.

　　But the devil in all this nice detail is efficiency(效率). Tiny engine parts don't always behave like their scaled－up parts of the first engine. Something between the parts can slow down the works, according to Columbia University professor Luc Frechette, one of the engine's designers. Extreme heat from the combustion chamber is also a problem, often leaking to other parts of the engine.

　　The scientists' goal is to create an engine that will operate at 10 percent efficiency－that is, 10 times better than batteries operate. Frechette says that a complete system, with all parts of place and working, will be set up in the next couple of years, but commercial models aren't like until at least the end of the next ten years.

1．According to the passage, the title suggests that ________.

[　　]

A．batteries should be greatly improved

B．petrol will be used instead of batteries

C．the time of batteries will be gone forever

D．pollution caused by batteries must be solved

2．What's the meaning of the underlined word “devil” in paragraph 3?

[　　]

3．What can we infer from the passage?

[　　]

A．The new invention doesn't need any fuel.

B．The new engine has been produced in quantity.

C．The new invention is much cheaper than the battery.

D．The new engine needs to be improved before it's on sale.

4．What is the main purpose of this passage?

[　　]

A．To introduce a new invention to readers.

B．To persuade readers not to use batteries.

C．To show us how the new invention works.