21. You can not imagine how much I ______ on this dress. Is it beautiful?
A. paid B. took C. cost D. spent
[剖析] 答案為D。本題考察四個表“花費”的動詞辨析。主語為人，且和介詞on搭配的動詞是spend。
22. ---- Do you know _____ university student who is talking with Joe?---- Yes， she，s my cousin, Kate.
A. a B. an C. the D. /
[剖析] 答案為C。university雖然以元音字母u開頭，但其前若使用不定冠詞時，則要用a.不過此題中不能使用不定冠詞，而是特指和Joe說話的那個大學生，故要選the。
23. The number of giant pandas is getting ______ because their living areas are becoming farmlands.
A. less and less B. larger and larger C. smaller and smaller D. fewer and
fewer
[剖析] 答案為C。句意為“大熊貓的數量越來越少因為他們的生存空間正逐漸變成農場”。本題中四個選項都是“比較級+ and + 比較級”的結構，表示“越來越……”。主語為number，只能和large或small搭配。而結合句意可判斷答案為C。
24. Be careful when you come _______ the street，because the traffic is very busy
at the moment.A. across B. behind C. between D. over
[剖析] 答案為A。本題考察方位介詞的用法。“過馬路”一般為表面橫穿，因此要用across。
25. ---- Do you often clean your classroom?---- Yes, our classroom ______ every day.
A. clean B. cleans C. is cleaned D. Cleaned
[剖析] 答案為C。句中有every day，主語為our classroom，故要用一般現在時的被動語態(tài)。
26. Lucy usually cleans the cage every two days. (對畫線部分提問)_ _______ Lucy usually clean the cage?
[剖析] 答案為How often does。對every two days提問要用how often。
27. I didn't understand __________，so I raised my hand to ask...
A. what my teacher says B. what does my teacher say C. what my teacher said D. what did my teacher say
[剖析] 答案為C。本題為賓語從句，由于需要用陳述語序可排除B、D;另外，主句時態(tài)為一般過去時，則從句也要用對應的過去時態(tài)，故還可排除A。
28. ---- How much ______ the shoes? ---- Five dollars ______ enough.
A. is;is B. are;is C. are;are D. is;are
[剖析] 答案為B。shoes作主語時，謂語動詞應用復數形式;five dollars是一個整體，應按單數對待。
29. 誤〕 We got to the top of the mountain in daybreak. 〔正〕 We got to the top of the mountain at day break.
〔析〕 at用于具體時刻之前，如：sunrise, midday, noon, sunset, midnight, night。
30. 〔誤〕 Dont sleep at daytime 〔正〕 Dont sleep in daytime.
〔析〕 in 要用于較長的一段時間之內，如：in the morning / afternoon, 或 in the week / month / year. 或 in spring / supper /autumn / winter等等。
A. paid B. took C. cost D. spent
[剖析] 答案為D。本題考察四個表“花費”的動詞辨析。主語為人，且和介詞on搭配的動詞是spend。
22. ---- Do you know _____ university student who is talking with Joe?---- Yes， she，s my cousin, Kate.
A. a B. an C. the D. /
[剖析] 答案為C。university雖然以元音字母u開頭，但其前若使用不定冠詞時，則要用a.不過此題中不能使用不定冠詞，而是特指和Joe說話的那個大學生，故要選the。
23. The number of giant pandas is getting ______ because their living areas are becoming farmlands.
A. less and less B. larger and larger C. smaller and smaller D. fewer and
fewer
[剖析] 答案為C。句意為“大熊貓的數量越來越少因為他們的生存空間正逐漸變成農場”。本題中四個選項都是“比較級+ and + 比較級”的結構，表示“越來越……”。主語為number，只能和large或small搭配。而結合句意可判斷答案為C。
24. Be careful when you come _______ the street，because the traffic is very busy
at the moment.A. across B. behind C. between D. over
[剖析] 答案為A。本題考察方位介詞的用法。“過馬路”一般為表面橫穿，因此要用across。
25. ---- Do you often clean your classroom?---- Yes, our classroom ______ every day.
A. clean B. cleans C. is cleaned D. Cleaned
[剖析] 答案為C。句中有every day，主語為our classroom，故要用一般現在時的被動語態(tài)。
26. Lucy usually cleans the cage every two days. (對畫線部分提問)_ _______ Lucy usually clean the cage?
[剖析] 答案為How often does。對every two days提問要用how often。
27. I didn't understand __________，so I raised my hand to ask...
A. what my teacher says B. what does my teacher say C. what my teacher said D. what did my teacher say
[剖析] 答案為C。本題為賓語從句，由于需要用陳述語序可排除B、D;另外，主句時態(tài)為一般過去時，則從句也要用對應的過去時態(tài)，故還可排除A。
28. ---- How much ______ the shoes? ---- Five dollars ______ enough.
A. is;is B. are;is C. are;are D. is;are
[剖析] 答案為B。shoes作主語時，謂語動詞應用復數形式;five dollars是一個整體，應按單數對待。
29. 誤〕 We got to the top of the mountain in daybreak. 〔正〕 We got to the top of the mountain at day break.
〔析〕 at用于具體時刻之前，如：sunrise, midday, noon, sunset, midnight, night。
30. 〔誤〕 Dont sleep at daytime 〔正〕 Dont sleep in daytime.
〔析〕 in 要用于較長的一段時間之內，如：in the morning / afternoon, 或 in the week / month / year. 或 in spring / supper /autumn / winter等等。