A．why

B．because

C．how

D．that

A．don’t

B．not

C．cannot

D．can

A．too

B．either

C．also

D．already

A．eat

B．live

C．have

D．get

A．are going to

B．may

C．certainly

D．will

A．when

B．yet

C．and

D．while

A．a little

B．a few

C．little

D．few

A．not

B．none

C．neither

D．no

A．like

B．as

C．as if

D．seem

完形填空：

　　Plants are very important living things．Life could not go on if there were no plants．This is 　　1　　 plants can make food from air, water and sunlight．Animals and men 　　2　　 make food from air, water and sunlight．Animals get their food by eating plants and animals

　　　　3　　 Therefore(因此), animals and men need plants in order to 　　4　　 This is the reason(原因)why we find that there are so many plants around us．

　　If you look carefully at the plants around you 　　5　　 find that there are many kinds of plants．Some plants are large 　　6　　 others are small．Most plants are green．

　　Some plants have many small leaves．Others have only 　　7　　 large leaves．There are many kinds of leaves．Leaves are of 　　8　　 shapes(形状)and colours．

　　Leaves are also different in other ways．Some leaves have short leaf stalks(叶茎)while others have long leaf stalks．Still others have ________9________ stalks at all．The edges(边)of leaves are also different．Some leaves have smooth(光滑的)edges．Some have wave(波状的)edges 10________ the teeth of saw(锯)．

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阅读下列材料，从每题所给的四个选项(A、B、C、D)中，选出最佳选项。

　　You may have noticed that the world's population is not evenly distributed(分别)around our planet．There are some countries where people seem to be living nearly on top of each other because conditions are overcrowded．Then there are others where it seems that hardly anybody lives．What influences this unequal distribution of people? There are specific advantages and disadvantages of *diving in a certain area．

　　The two main factors that influence people'choice of location are climate and resources．Climate is the usual weather conditions in a region．Areas that have bad weather are generally less deal as places to live in．The north and south poles at the top and bottom of the world may be beautiful in their rugged, natural way, but the disadvantage of the bitterly cold and windy conditions usually keeps people way．When it comes to climate, warm conditions and a normal amount of rainfall are advantage that attract people．

　　Natural resources are things that we get from nature that help us survive．Each region offers different resources, and therefore attracts different groups of people．People who enjoy the beach car make their living by catching and selling the ocean's many fish and other sea creatures．Those who prefer farming can take advantage of rich soil(土壤)in valleys near rivers．Some people are willing to accept the disadvantages of the terrible conditions of deserts or mountains in order to take advantage of the resources like oil or woods．

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