Book 4 Unit 2、3 参考答案及部分解析.doc

Book 4 Unit 2 参考答案及部分解析
1-5 ABABB 6-10 B 11-15 BBACB 16-20 AABCA
21-25 CABCA 26-30 CBABD 31-35 CBDAD
36-40 BCCBD 41-45 DBAAC 46-50 CBDDC 51-55 ADBDA
56-60 CACBA 61-65 DBCBA 66-70 CDADB 71-75 BCAAA
76. Research / Different views on baby signing.
77. To improve language skills of children.
78. By talking to them regularly. / By creating an active home environment.
79. Because they are influenced by others.
80. Supportive.
Dear John,
Our class are going to visit anic farm in the suburb of the city this Saturday. The aim of this visit is to give us a real experience of how to anic farming and a knowledge of the benefits of anic food. There will be a guided tour of the farm for us to explore the importance of crop rotation for soil protection. We will also be given a small piece of land to do the actual farm work. You are invited to attend anic farm visit. For more information, please contact me.
Yours,
Li Hua
21. C,employment rate 特指我们国家的就业率,故其前用定冠词;job 是可数名词,且在此表泛指,故其前用a。
22. A。“路面结冰”是“冻雨侵袭”的结果,故选leading to (导致)。
23. B。分析句子结构可知,reading novels by Alice Munro or other famous writers是动词-ing 形式短语作主语,谓语动词要用单数;又由At weekends 可知,要用一般现在时,故选is。
24. C。由since last year 及look so slim 可知,“我从去年开始一直在节食”,故用现在完成进行时。
25. A。分析句子结构可知,真正的宾语是to read newspapers every morning,故用it作形式宾语。
26. C。“它允许他们使用信用卡或现金付账”是“这家超市吸引了很多顾客”的原因,故选for(因为,由于)。
27. B。分析句子结构可知,our government has _____ th