0  325657  325665  325671  325675  325681  325683  325687  325693  325695  325701  325707  325711  325713  325717  325723  325725  325731  325735  325737  325741  325743  325747  325749  325751  325752  325753  325755  325756  325757  325759  325761  325765  325767  325771  325773  325777  325783  325785  325791  325795  325797  325801  325807  325813  325815  325821  325825  325827  325833  325837  325843  325851  447090 

9. After watching ___TV, she played ____ guitar for an hour.

A. /, /      B. /, the      C. the, /      D. the, the

试题详情

8.---How is your tour around the North Lake? Is it beautiful?

---It ____ be, but it is now heavily polluted.

A. will      B. would      C. should     D. must

试题详情

7. It is a (an)_____ mistake among the students, so we must explain the reason to them.

  A. ordinary    B. common     C. usual    D. similar

试题详情

6. -Can I get a cup of coffee for you?

-      .

    A. It all depends                    B. It’s your turn

    C. Go ahead                                        D. That’s nice of you

试题详情

5. breathe    A. south       B. cloth     C. southern     D. length

第二节:词汇和语法知识(20分)

试题详情

4. obey     A. clone       B. wonder    C. position     D. motto 

试题详情

3. amount    A. country      B. touch     C. pronounce    D. group

试题详情

2. express    A. experience    B. exercise    C. example     D. extra

试题详情

第一节:语音知识 (5分)

1. disagree   A. absolutely     B. image     C. appointment   D. teenager

试题详情

21、(20分)风洞实验室中可以产生水平方向的、大小可调节的风力,现将一套有小球的细直杆放入风洞实验室,小球孔径略大于细杆直径。如图所示。

①当杆在水平方向上固定时,调节风力的大小,使小球在杆上匀速运动。这时小球所受风力为小球重力的0.5倍,试求小球与杆间的滑动摩擦因数;

②保持小球所受风力不变,使杆与水平方向间夹角为37°并固定,则小球从静止出发在细杆上滑下距离s所需的时间为多少?(sin37°=0.6,cos37°=0.8,g=10m/s2)

试题详情


同步练习册答案