单选题If absolutely necessary，the best way to land on a beach in a motor lifeboat is to（）.A run as fast as the boat will go and keep the sea on the sternB secure the engine，put sea anchor over the bow，put out the oars，use sweep oar and back onto beachC go in

此题为判断题(对，错)。

A.am going to return

B.will return

C.am to return

D.should return

Communication management is best described as conducting or supervising

A the way we listen

B the way we speak

C the way we feel

D the exchange of information

E perfect documentation activities

A

Why do plants grow in some places and not in others? Why does some land have so much growing on it，while other land has almost no plants growing on it at all?

To grow plants need several things． One is warmth． In very cold places almost nothing grows． Plants also need water． In very dry parts of the earth only a few unusual plants can grow． That's why dry deserts everywhere are almost not covered by trees or grass．

Plants must also have a place in which to f，ut down their roots and grow． They find it diffi-culr to grow on hard land． The town is built on hard land． The plants here have only the soil found between the cracks of the stones Io grow in．

Another thing plants must have before they can grow is food．

Whar will happen if we try to make things grow on the sandy beach? A few plants，such as beach grass，will grow in sand，L ut most plants won-t． Even if the weather is warm enough．and we water the plants each day． Many of them will die because the sand on this beach has al-most no food for plants．

( )21． According to the passage，plants need _________ things to grow well．

A． two

B． three

C． four

D． five

The best title for the passage may be ______.

A. Garbage and the Earth

B. Fossil Fuel and Garbage

C. Land and Garbage

D. Garbage? Energy Source

A.the synthetic way of thinking

B.the analytic way of thinking

C. the concrete way of thinking

D.the abstract way of thinking

133 Communication management is best described as conducting or supervising

A. the way we listen

B. the way we speak

C. the way we feel

D. the exchange of information

E. perfect documentation activities

The chart of a beach area shows a very flat slope to the underwater beach bottom. What type of breakers can be expected when trying to land a boat on this beach?

A.Surging

B.Spilling

C.Plunging

D.Converging