题目内容
15．Why don't you come to join us？（改为同义句）Whynotcome to join us？
Howaboutcoming to join us？
分析 --你为什么不来加入我们呢？
--为什么不来加入我们呢？
--来加入我们怎么样？
解答 答案：Why not；How about．考查同义句．表示建议做某事，可以用why don't sb do（某人为什么不）、why not do（为什么不）或what about/how about"…怎么样？"，因此答案是Why not；How about．
点评 同义句转换最基本的是要保持原意不变，在理解语境的基础上，抓住关键单词或词组，运用相同词意的单词或词组完成试题．
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3．Did you make____again？（ ）
| A． | mistake | B． | a mistakes | C． | mistaken | D． | mistakes |
20．You probably don‘t think about soil often，but the following report may help you learn about science of soil．
What is soil made of？
Soil is made of sediments （沉积物） and humus（腐殖质）．Sediment is small pieces of rock broken down over time by rain，ice，and wind．Sediment is often found in water．Humus comes from decayed（腐烂的） plants and animals．It helps give plants a lot of the food they need to grow．
How does soil form？
Over centuries，rock breaks down into very small pieces．
The rock pieces mix with humus．
The humus gets thicker and thicker over time．Soil is formed（形成）l
How are soils different？
Soils can be different colors and have different textures（质感）．Texture is how the surface of an object feels．Color and texture are two features（特征） of soil．
Plants and soil
Plants do not grow well in some soils．Sandy soi1 is too dry．It does not hold water．Soil with too much clay is too thick．Most plants grow well in dark，rich garden soil that has different sediments and a lot of humus in it．
What is soil made of？
Soil is made of sediments （沉积物） and humus（腐殖质）．Sediment is small pieces of rock broken down over time by rain，ice，and wind．Sediment is often found in water．Humus comes from decayed（腐烂的） plants and animals．It helps give plants a lot of the food they need to grow．
How does soil form？
Over centuries，rock breaks down into very small pieces．
The rock pieces mix with humus．
The humus gets thicker and thicker over time．Soil is formed（形成）l
How are soils different？
Soils can be different colors and have different textures（质感）．Texture is how the surface of an object feels．Color and texture are two features（特征） of soil．
Plants and soil
Plants do not grow well in some soils．Sandy soi1 is too dry．It does not hold water．Soil with too much clay is too thick．Most plants grow well in dark，rich garden soil that has different sediments and a lot of humus in it．
The title （标题）：（81）Science of soil | |
The things in soil | Sediment is often found in water． Humus （82）comes from decayed plants and animals． |
The steps of forming | Rock breaks down into very small pieces． The rock pieces mix with humus． The humus gets （83）thicker and thicker． |
（84）The differences between soils | Soils can be different colors and have different textures． |
The relationship between plants and soil | （85）Dark，rich garden soil is good for plants to grow in． |
7．I look for my book ____．I can't find it now．（ ）
| A． | somewhere | B． | everywhere | C． | anywhere | D． | nowhere |
4．-Do you like this cotton shirt？
-Yes，it ________ nice and soft．（ ）
-Yes，it ________ nice and soft．（ ）
| A． | is felt | B． | is feeling | C． | feel | D． | feels |